Version V0910 current as of OCT 2009.
| Location | County | State/Province | Directions,Notes | Age | Formation | Fossils | Comments | Reference | Lat-Long | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | [?] | MT | Along Missouri R in NE MT | Cretaceous | Pierre | ? | MT0204 | | | , | ||||
| - | [?] | MT | Along Missouri Rive tributaries in NE MT | Cretaceous | Pierre | ? | MT0205 | | | , | ||||
| - | [?] | MT | Regional exposures in E part of state | Paleocene | Fort Union | Fossil Plants | MT0206 | | | , | ||||
| - | [?] | MT | Cretaceous | Judith River | Nodosaur --Edmontonia,Ankylosaur -- Euplocephalus | MT0203 | | | , | |||||
| Judith River | [?] | MT | Cretaceous | Hell Creek | fish-Lepisosteus? | MT0202 | 47.7350,-109.6453,,MCU | | | , | ||||
| Eastern Montana-Western South Dakota | - | MT | In Hell Creek Formation - dark colored continental beds above the Fox Hills Sandstone and Pierre Shale. | Cretaceous | Hell Creek | Vertebrate fossils are not uncommon but are not mineralized and do not weather well. Sharks-Lonchiodon; Rays-Myledaphus; fish-Acipenser,Paleopsephurus,Amia,Lepisosteus,Platacodon,Palaeolabrus; Amphibians ; Caudata,Scapherpeton,Prodesmodon,Opis | MT0001 | | | , | ||||
| Arrowhead Mountain | Beaverhead | MT | In Centennial Range on N face E of mouth of Odell Creek S29t14sr1w-s32t14sr1w -111.7486, 44.5938 at a distance of 862 m | Mississippian | Lodgepole | Lithostrotionella,Syringopora,gastropods | MT0002 | 44.5938,-111.7486, S29t14sr1w-s32t14sr1w | | | , | |||
| Diamond O Ranch | Beaverhead | MT | Eocene-Oligocene | Renova | Mammal Fossils | MT0003 | 45.3667,-112.4967,,SCU | | | , | ||||
| Dillon | Beaverhead | MT | 25 km NE on MT41 at Point of Rocks | Fossils and Dinosaur Bone | MT0004 | 45.2164,-112.6367,,MCU | | | , | |||||
| Dillon | Beaverhead | MT | 30 km W in Frying Pan Basin | Petrified Wood | MT0005 | 45.2164,-112.6367,,MCU | | | , | |||||
| Dillon | Beaverhead | MT | along Blacktail Creek road on NE side of Blacktail Creek in S23t12sr6w-t26 t12sr6w Little Basin Creek head; -112.3150, 44.7488 at a distance of 3098 m | Triassic Lower | Dinwoody Limestone | Lingula,ammonites. brachiopods,pelecypods | MT0006 | 44.7488,-112.3150, S23t12sr6w-t26 | | | , | |||
| Little Sheep Creek | Beaverhead | MT | on Middle Fork on E side in SE s29t15sr8w Red Conglomerate Peaks; Idaho: Clark Co. -112.5980, 44.4880, ( 10250 ft ) at a distance of 1345 m | Jurassic | Ellis | Gryphaea,Camptonectes,Pinna,Trigonia,many Pentacrinus | MT0007 | 44.4880,-112.5980, s29t15sr8w | | | , | |||
| Sheep Creek Canyon | Beaverhead | MT | W side in Blacktail Range s7t9sr8w Small Horn Canyon mouth; Montana: Beaverhead Co. -112.6562, 45.0788 at a distance of 2553 m | Mississippian | Amsden Limestone | brachiopods,corals,Linoproductus,Composita,Lingula,Bryozoa. | MT0008 | 45.0788,-112.6562, s7t9sr8w | | | , | |||
| Beauvais Creek | Big Horn | MT | On Beauvais Creek 1.6km SW of Cashen's Ranch Crow Indian Reservation | Cretaceous | Cloverly | vertebrates-Sauropelta | MT0009 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.4869,-107.7397,,SCU | | | , | ||
| Beauvais Creek | Big Horn | MT | On Beauvais Creek 1.6km W of Cashen's Ranch Crow Indian Reservation | Cretaceous | Cloverly | vertebrates-Deinonychus | MT0010 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.4869,-107.7397,,SCU | | | , | ||
| Beauvais Creek | Big Horn | MT | On Beauvais Creek 28.8km SW of Crow Agency | Cretaceous | Cloverly | dinosaur bones | MT0011 | 45.4869,-107.7397,,SCU | | | , | |||
| Beauvais Creek | Big Horn | MT | On Beauvais Creek 80km SW of Billings--may be only 74km or there may be two separate localities 16km apart | Cretaceous | Cloverly | vertebrates-Naomichelys,Polyporites,Sauropelta,Tenontosaurus | MT0012 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.4869,-107.7397,,SCU | | | , | ||
| Beauvais Creek | Big Horn | MT | On E fork Beauvais Creek 16km SW of Cashen's Ranch Crow Indian Reservation | Cretaceous | Cloverly | vertebrates-Sauropelta,Tenontosaurus | MT0013 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.4869,-107.7397,,SCU | | | , | ||
| Beauvais Creek | Big Horn | MT | On W fork Beauvais Creek 62km SE of Billings | Cretaceous | Cloverly | turtles-Helopanoplia | MT0014 | 45.4869,-107.7397,,SCU | | | , | |||
| Billings | Big Horn | MT | S near Wyoming border between Pryor and Bighorn Mountains | silicified coral. | MT0015 | 45.7833,-108.5000,,MCU | | | , | |||||
| Buster Creek | Big Horn | MT | Cretaceous | Cloverly | turtles-Naomichelys | MT0016 | 45.4414,-108.1617,,MCU | | | , | ||||
| Buster Creek | Big Horn | MT | Cretaceous | Sykes Mountain | vertebrates-Champsosaurus | MT0017 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.4414,-108.1617,,MCU | | | , | |||
| Christine | Big Horn | MT | 3.2km E | Cretaceous | Judith River | Reptiles-Champsosaurus;Turtles | MT0018 | | | , | ||||
| Hardin | Big Horn | MT | Pennsylvanian[?] | Sage Hen Limestone | pelecypods,ammonites,Inoceramus,Scaphites. | MT0019 | Source says Pennsylvanian,but the assemblage looks Cretaceous | 45.7325,-107.6114,,MCU | | | , | |||
| Horse Coulee | Big Horn | MT | 1.6km N of Cashen's Ranch | Cretaceous | Cloverly | crocodile bones | MT0020 | 47.2750,-107.7164,,MCU | | | , | |||
| Mott Creek | Big Horn | MT | 14.4km E of Cashen's Ranch on Crow Indian Reservation (Coordinates for Mott Creek 45.47,-108.11 | Cretaceous | Cloverly | Dinosaurs-Sauropelta[?],Tenontosaurus | MT0022 | Original says Sauropeltis | 47.0892,-112.9211,,MCU | | | , | ||
| Mott Creek | Big Horn | MT | 14.4km E of Cashen's Ranch on Crow Indian Reservation | Cretaceous | Cloverly | Crocodiles;Dinosaurs-Deinonychus | MT0021 | 47.0892,-112.9211,,MCU | | | , | |||
| Pryor | Big Horn | MT | 12.8km E at Hams Creek | Cretaceous | Fort Benton | vertebrates-turtles- | MT0023 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.1606,-108.4689,,MCU | | | , | ||
| Pryor | Big Horn | MT | 16km E at Brush Creek | Cretaceous | Fort Benton | vertebrates-turtles-Glyptops | MT0024 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.1606,-108.4689,,MCU | | | , | ||
| Pryor | Big Horn | MT | 40km E | Cretaceous | Fort Benton | vertebrates-turtles-Naomichelys | MT0025 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.1606,-108.4689,,MCU | | | , | ||
| Pryor | Big Horn | MT | 40km SE of Pryor in area exposures around Cashen's Ranch | Cretaceous | Cloverly | vertebrates-Sauropelta,Tenontosaurus;Crocodile-Goniopholis?;turtles-Naomichelys | MT0026 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.1606,-108.4689,,MCU | | | , | ||
| Pryor | Big Horn | MT | 8km NE | Cretaceous | Cloverly | vertebrates-Sauropelta,Tenontosaurus | MT0027 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.1606,-108.4689,,MCU | | | , | ||
| Pryor | Big Horn | MT | Area Exposures-12.8kmE,18kmE,19.5kmSE,40kmE,48kmE | Cretaceous | Fort Benton | vertebrates-turtles-Glyptops;fish teeth-Cladodus,Orodus;reptiles-plesiosaurs,crocodiles-Teleorhinus | MT0028 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.1606,-108.4689,,MCU | | | , | ||
| Pryor-Horse Coulee | Big Horn | MT | 48 km E of Pryor at Horse Coulee | Jurassic | Morrison | dinosaur bones-Diplodocus | MT0029 | | | , | ||||
| - | Blaine | MT | Cretaceous | Bearpaw Shale | Cephalopods Placenticeras | MT0032 | | | , | |||||
| - | Blaine | MT | Cretaceous | Judith River | sharks - Hybodus,Cretorectolobus,Synechodus,Ptychotrygon Fish mouth plates - Parabula Judith River Fm - general dinosaurs Monoclonius | MT0033 | | | , | |||||
| Bearpaw Mountains | Blaine? | MT | to S,N of Missouri River | Cretaceous | Judith River Upper | fish teeth-Archaeotriakis,Cretorectolobus,Hybodus,Hypotodus,Ischyrhiza,Myledaphus,Odontapsis,Plicatolamna,Protoplatyrhina,Ptychotrygon,Squalicorax,Synechodus | MT0035 | | | , | ||||
| Suction Creek | Blaine | MT | Cretaceous | Judith River | shark teeth-Hybodus,Lonchidion | MT0030 | 48.0386,-108.9481,,MCU | | | , | ||||
| Timber Ridge | Blaine | MT | Cretaceous | Judith River | fish teeth-Parabula | MT0031 | 48.0069,-108.9089,,MCU | | | , | ||||
| - | Blaine,Fergus | MT | Cretaceous | Judith River | Vertebrates-Crocodiles-Leidyosuchus;Dinosaurs-Monoclonius;turtles-Naomichelys | MT0034 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.4767,-107.5450,,MCU | | | , | |||
| Bear Creek | Carbon | MT | Paleocene Upper | Fort Union | Mammal Fossils | MT0036 | 47.3017,-112.6908,,MCU | | | , | ||||
| Bridger | Carbon | MT | 17.6km E | Cretaceous | Cloverly | vertebrates-Sauropelta,Tenontosaurus | MT0038 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.6189,-109.7739,,MCU | | | , | ||
| Bridger | Carbon | MT | 20 km S in area exposures | Reptile fossils. | MT0039 | 45.6189,-109.7739,,MCU | | | , | |||||
| Bridger | Carbon | MT | N E of US310 | Reptile Fossils | MT0040 | 45.6189,-109.7739,,MCU | | | , | |||||
| Bridger | Carbon | MT | Gastropods - Planorbis | MT0037 | 45.6189,-109.7739,,MCU | | | , | ||||||
| Caslieus[?] | Carbon | MT | 5.6km NE on Point Creek | Cretaceous | Cloverly | Dinosaurs-Tenontosaurus | MT0041 | Unable to locate a 'Caslieus' or anything similar in Big Horn County (or,indeed,anywhere) | | | , | |||
| Red Lodge | Carbon | MT | to S and E in area exposures | Eocene | Fort Union | Plant and animal fossils | MT0042 | 45.1864,-109.2472,,MCU | | | , | |||
| Chalk Bluff | Carter | MT | dinosaurs - Triceratops | MT0043 | 45.8275,-113.2936,,SCU | | | , | ||||||
| Powder River | Carter | MT | in breaks of Powder River about 130m below Fort Union coal | Cretaceous | Lance | dinosaur teeth | MT0044 | 45.3767,-105.3011,,MCU | | | , | |||
| Great Falls | Cascade | MT | 11.2km E On Missouri River just below Rainbow Falls | Cretaceous | Kootenai | Dinosaur bones | MT0045 | 47.5167,-111.2667,,MCU | | | , | |||
| Vaughn | Cascade | MT | 18 km W of Great Falls | black petrified wood,teredo wood. | MT0046 | 47.5606,-111.5450,,MCU | | | , | |||||
| Chouteau | Chouteau | MT | In Willow Creek Anticline | Hadrosaur bones,eggs,nests Orodromeus,Troodon,Maisaura - owned and by Nature Conservancy and Museum of the Rockies.{7} | MT0049 | 48.7675,-109.2828,,MCU | | | , | |||||
| Chouteau | Chouteau | MT | Cretaceous | Two Medicine | Dinosaur egg shells | MT0047 | 48.7675,-109.2828,,MCU | | | , | ||||
| Chouteau | Chouteau | MT | Cretaceous | Two Medicine | Hadrosaurs - Maiasaura | MT0048 | 48.7675,-109.2828,,MCU | | | , | ||||
| Clambank Hollow | Chouteau | MT | SE1/4S31T24NR17E Coal Coulee head; -109.5940, 47.7981 at a distance of 1173 m | Cretaceous | Judith River | Mammals-Allotheria,Allotheria,Alphadon,Boreodon,Cimexomys,Cimolodon,Gypsonictops,Meniscoessus,Mesodma,Pediomys,Theria;Dinosaurs-Albertosaurus,Corythosaurus,Dromaeosaurus,Edmontonia,Kritosaurus,Palaeoscincus,Paronychodon,Procheneosaurus,Stegoceras... | MT0051 | 47.7981,-109.5940, SE1/4S31T24NR17E | | | , | |||
| Clambank Hollow | Chouteau | MT | Cretaceous | Judith River | Mammal Reference Location | MT0050 | | | , | |||||
| Loma | Chouteau | MT | area roadcuts | Baculites | MT0052 | 36.3514,-111.8358,,MCU | | | , | |||||
| Marias River Valley | Chouteau | MT | In 'breaks' | marine fossils in concretions | MT0053 | | | , | ||||||
| - | Custer | MT | SE part of County | Cretaceous | Pierre | ? | MT0056 | | | , | ||||
| - | Custer | MT | Cretaceous | Pierre | Ostrea,Avicula,Inoceramus,Chlamys,Yoldia,Nucula,Lucina,Protocardia,Callista,Lunatia,Scaphites,Nautilus,Modiola,Veniella,Anchura,Haminea,Pyrofusus,Dentalium,Baculites | MT0055 | | | , | |||||
| Mexican Hat | Custer | MT | In Williston Basin at NE1/41NE1/4S29T8NR52E Rabbidge Creek head; -105.2283, 46.4131 at a distance of 1592 m | Paleocene | Fort Union | About 20 taxa of plants-Sycamore,etc | MT0054 | 46.4131,-105.2283, NE1/41NE1/4S29T8NR52E | | | , | |||
| Crooked Creek | Dawson | MT | 208km NW of Miles City,40km S of Glasgow | Cretaceous | Hell Creek | dinosaurs-Anatosaurus,Anatotitan,Ectoconodon,Myledaphus,Triceratops,Tyrannosaurus;crocodiles-Leidyosuchus;turtles-Asperidites | MT0057 | 44.8833,-112.5767,,MCU | | | , | |||
| Glasgow | Dawson | MT | 64km S | Cretaceous | Lance | vertebrates-Hybodus | MT0058 | 48.1969,-106.6361,,MCU | | | , | |||
| Glendive | Dawson | MT | 10.5 km W on extension of 10th Avenue - 1.5 km E of creek crossing | Cretaceous | Pierre | abundant fossils | MT0063 | 47.1064,-104.7103,,MCU | | | , | |||
| Glendive | Dawson | MT | 16 km SW near Iron Bluff | Cretaceous | Lance | abundant marine shells,reptile bones -Triceratops,Trachodon,Tyrannosaurus,Camptosaurus,crocodiles turtles,mammal teeth | MT0064 | 47.1064,-104.7103,,MCU | | | , | |||
| Glendive | Dawson | MT | At Makoshka State Park | Cretaceous | Hell Creek | vertebrates-reptiles-Champsosaurus;turtles-Adocus,Asperidites,Baena,Clemmys,Compsemys;Dinosaurs-Triceratops | MT0065 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.1064,-104.7103,,MCU | | | , | ||
| Glendive | Dawson | MT | NW along Hell Creek in Sandstone | Cretaceous | Fox Hills | Carbium,Nucula,Tellina,Yoldia,Crenella,Piestochilus,Anchura,Lunatia,Cylichna,Baculites,Scaphites,Chemnitzia,Mactra,Actaeon | MT0066 | 47.1064,-104.7103,,MCU | | | , | |||
| Glendive | Dawson | MT | along Cedar Creek in concretions | ammonites,Baculites | MT0067 | 47.1064,-104.7103,,MCU | | | , | |||||
| Glendive | Dawson | MT | from 24 to 240 km downstream to vicinity of Forsythe S.D. | Cretaceous | Lance | abundant marine shells,reptile bones - Triceratops,Trachodon,Tyrannosaurus,Camptosaurus,crocodiles turtles,mammal teeth | MT0068 | 47.1064,-104.7103,,MCU | | | , | |||
| Glendive | Dawson | MT | Cretaceous | Hell Creek | dinosaurs;turtles-Stygiochelys | MT0059 | 47.1064,-104.7103,,MCU | | | , | ||||
| Glendive | Dawson | MT | Cretaceous | Hell Creek | dinosaurs;turtles-Stygiochelys | MT0060 | 47.1064,-104.7103,,MCU | | | , | ||||
| Glendive | Dawson | MT | Cretaceous | Lance | marine shells,dinosaur bones - Triceratops,Trachodon,Tyrannosaurus,Camptosaurus,crocodiles,turtles,mammals | MT0061 | 47.1064,-104.7103,,MCU | | | , | ||||
| Glendive | Dawson | MT | Cretaceous | Pierre Shale | Mollusks - Inoceramus,Cephalopods: Acanthoscaphites,Plants Gingko | MT0062 | 47.1064,-104.7103,,MCU | | | , | ||||
| Hell Creek | Dawson | MT | above Pierre shale | Cretaceous | Fox Hills | Carbium,Nucula,Tellina,Yoldia,Crenella,Piestochilus,Anchura,Lunatia,Cylichna,Baculites,Scaphites,Chemnitzia,Mactra,Actaeon | MT0070 | 45.6933,-112.4258,,MCU | | | , | |||
| Hell Creek | Dawson | MT | Cretaceous | Pierre | Ostrea,Avicula,Inoceramus,Chlamys,Yoldia,Nucula,Lucina,Protocardia,Callista,Lunatia,Scaphites,Nautilus,Modiola,Veniella,Anchura,Haminea,Pyrofusus(a whelk),Dentalium,Baculites | MT0069 | 45.6933,-112.4258,,MCU | | | , | ||||
| Jordan | Dawson | MT | 56km E | Cretaceous | Hell Creek | turtles-Asperidites | MT0071 | 47.0850,-106.1283,,MCU | | | , | |||
| Missouri River | Dawson | MT | along River and tributaries | Cretaceous | Pierre | Ostrea,Avicula,Inoceramus,Chlamys,Yoldia,Nucula,Lucina,Protocardia,Callista,Lunatia,Scaphites,Nautilus,Modiola,Veniella,Anchura,Haminea,Pyrofusus,Dentalium,Baculites | MT0072 | 48.1233,-104.4744,,MCU | | | , | |||
| Baker | Fallon | MT | 11.2km S | Cretaceous | Hell Creek | vertebrates-reptiles-Leidyosuchus | MT0073 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 46.3694,-104.2769,,MCU | | | , | ||
| - | Fergus | MT | area exposures | Cretaceous Upper | crocodile - Deinosuchus to 12 meters | MT0086 | | | , | |||||
| Armells Creek | Fergus | MT | Cretaceous | Pierre | Plesiosaur-Elasmosaurus | MT0074 | 47.6214,-108.6756,,MCU | | | , | ||||
| Bear Gulch | Fergus | MT | Important locality-Goelex says names locality of the Bear Gulch Limestone is in T14NR21-22E | Pennsylvanian | Bear Gulch | Diverse faunas--Invertebrates,fish. Lat long is center of T14NR21E about 1km W of Bear Creek | MT0075 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 46.9674364,-109.0562349,T14NR21-22E,G | | | , | ||
| Big Snowy Mountains | Fergus | MT | on N flank in s6t12nr20e Half Moon Creek mouth; Montana: Fergus Co. -109.2293, 46.8272 at a distance of 1744 m | Carboniferous | Amsden Limestone | brachiopods (some oil filled),Leiorhynchus,Productus,Chonetes,Composita,Pustula,Trepospira all in concretions | MT0076 | The Heath Formation is Oligocene. The Amsden and Otter are in fact Mississippian | 46.8272,-109.2293, s6t12nr20e | | | , | ||
| Dog Creek | Fergus | MT | On divide between Dog Creek and Judith River drainages | Cretaceous | Judith River | vertebrates-Crocodiles-Leidyosuchus;turtles | MT0078 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.5047,-106.9883,,MCU | | | , | ||
| Dog Creek | Fergus | MT | Cretaceous | Clagett | bird bones-Hesperornis | MT0077 | 45.5047,-106.9883,,MCU | | | , | ||||
| Heath | Fergus | MT | 10 km ESE in 20cm layer | crustacea,abundant fish,ostracods,brachiopods | MT0079 | 46.9958,-109.2664,,MCU | | | , | |||||
| Heath | Fergus | MT | in Mississippian Upper Heath shale 10 km ESE in a black fissile shale bed about 20cm thick. | Mississippian Upper | Heath | Crustacea,fish,Conchostraca,ostracods,brachiopods. | MT0080 | 46.9958,-109.2664,,MCU | | | , | |||
| Hilger | Fergus | MT | N of Lewistown at Van Haur Farm | Cretaceous | Clagett | reptile bones | MT0081 | Original says 'Hilgur' | 47.2539,-109.3592,,MCU | | | , | ||
| Judith River | Fergus | MT | Cretaceous | Judith River | dinosaurs-Deinodon | MT0082 | 47.7350,-109.6453,,MCU | | | , | ||||
| Missouri River | Fergus | MT | Opposite mouth of Dog Creek | Cretaceous | Judith River | dinosaurs-Monoclonius | MT0083 | 48.1233,-104.4744,,MCU | | | , | |||
| Willow Creek | Fergus | MT | Deinosuchus (a crocodile),the type of Deinosuchus was found at Willow Creek,4.8km W of Nolan and Archer's Ranch,In Fergus County,Montana. From the Judith River Formation | Cretaceous | Judith River | Crocodile - Deinosuchus | MT0084 | 47.5069,-110.8772,,MCU | | | , | |||
| Winifred | Fergus | MT | NW in badlands along Missouri River | Cretaceous | Judith River | vertebrate fragments | MT0085 | 47.5633,-109.3950,,MCU | | | , | |||
| Lewiston | Flathead | MT | West | Mississippian | Bear Gulch Limestone | Worms | MT0087 | 46.4639,-111.9856,,SCU | | | , | |||
| Anceney | Gallatin | MT | KU Mont. Loc. 34, Center N 1/2, sec. 13, T2S, R3E 45.666667 -111.30000 | Miocene-Middle | Madison Valley | - | MT0220 | miomap.berkeley.edu/Locality.xls | 45.666667, -111.30000 | | | , | ||
| Anceney | Gallatin | MT | Miocene-Pliocene | Madison Valley | Mammal Fossils | MT0088 | 45.6486,-111.3539,,MCU | | | , | ||||
| Bridger Mountains | Gallatin | MT | Jurassic | Gryphaea,Camptonectes,Gervillia,Pleuromya,Myalina | MT0215 | http://www.usace.army.mil/publications/eng-pamphlets/ep870-1-22/c-4.pdf | | | , | |||||
| Logan | Gallatin | MT | 16 km E at Iron Bluff | Mississippian | Madison | crinoid fragments,Ambocoelia,Camarotoechia,Cleiothyridina,Cyrtospirifer | MT0090 | 48.1797,-113.6050,,MCU | | | , | |||
| Logan | Gallatin | MT | In s24t2nr2e Logan School (historical); Montana: Gallatin Co. -111.4275, 45.8843 at a distance of 3087 m | Devonian | Three Forks | Syringothyris,Cyrtospirifer. Cladopora,Stromatoporoids | MT0091 | 45.8843,-111.4275, s24t2nr2e | | | , | |||
| Logan | Gallatin | MT | on N bank of Gallatin River across from town in se1/4s25t2nr2e Logan (historical); Montana: Gallatin Co. -111.4275, 45.8843 at a distance of 1533 m | Mississippian | Madison | crinoid fragments,Ambocoelia,Camarotoechia,Cleiothyridina,Cyrtospirifer | MT0092 | 45.8843,-111.4275, se1/4s25t2nr2e | | | , | |||
| Logan | Gallatin | MT | Mississippian | Madison | crinoid fragments,Ambocoelia,Camarotoechia,Cleiothyridina,Cyrtospirifer | MT0089 | 48.1797,-113.6050,,MCU | | | , | ||||
| Three Forks | Gallatin | MT | S of town | Petrified wood | MT0093 | 47.2817,-111.0894,,MCU | | | , | |||||
| Three Forks Quad | Gallatin | MT | brachiopods | Micromitra | MT0095 | 45.896890,-111.596248,,CU | | | , | |||||
| Three Forks Quad | Gallatin | MT | Trilobites Bathyuriscus | MT0094 | 45.896890,-111.596248,,CU | | | , | ||||||
| Brownie Butte | Garfield | MT | Cretaceous | Hell Creek | Abundant and diverse fossil plants | MT0096 | 47.5306,-107.0167,,MCU | | | , | ||||
| Gilbert Creek | Garfield | MT | Multiple exposures--208-224km NW of Miles City | Cretaceous | Hell Creek | crocodiles-Leidyosuchus;dinosaurs-Ankylosaurus,Tenontosaurus,Thescelosaurus,Triceratops,others | MT0097 | This is possibly the Gilbert Creek in Garfield County,but there are other Gilbert Creeks in MT | 47.7011,-106.5525,,MCU | | | , | ||
| Hell Creek | Garfield | MT | Area exposures 25.6km N of Jordan,200-208km NW of Miles City. There may be a second locality 40km N of Jordan | Cretaceous | Hell Creek | crocodiles-Crocodylus,Leidyosuchus;Champsosaurus;dinosaurs-Edmontosaurus,Hadrosaurus,Ornithomimus,Thescelosaurus,Trachodon,Triceratops,Tyrannosaurus;turtles-Adocus,Asperidites,Aspideretoides,Baena,Basilemys,Emys,Plastomenus;Urodela-Scapherpeton | MT0098 | 45.6933,-112.4258,,MCU | | | , | |||
| Jordan | Garfield | MT | 24.6km N | Paleocene | Tullock | reptiles-Champsosaurus | MT0099 | Original says 'Turlock formation | 47.0850,-106.1283,,MCU | | | , | ||
| Lismas | Garfield | MT | 36km SE at Hungry Creek-Bear Creek divide | Cretaceous | Hell Creek | ? | MT0100 | 47.9397,-106.5278,,MCU | | | , | |||
| Lismas | Garfield | MT | In various locations 24,29,32,40,48 km SE on Rock Creek,Sand Creek (6km E of CK Ranch),and Sand Arroyo | Cretaceous | Hell Creek | vertebrates-reptiles-Brachychampsa,Champsosaurus;dinosaurs-Anatosaurus,Anatotitan,Thescelosaurus,Triceratops,Tyrannosaurus;turtles-Thescelus? | MT0101 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.9397,-106.5278,,MCU | | | , | ||
| Lismas | Garfield | MT | Two(?) sites on the E side of Big Dry Creek 44.8 and 56 km S of Lismas--possibly other area exposures | Cretaceous | Hell Creek | leaves;vertebrates-reptiles-Brachychampsa,Champsosaurus,Leidyosuchus;dinosaur bones-Tyrannosaurus,others;turtles-Asperidites?,Baena,Clemmys,Compsemys,Eubaena,Helopanoplia,Neurankylus,Palatobaena;bird bones;fish-Myledaphus | MT0102 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.9397,-106.5278,,MCU | | | , | ||
| Lismas | Garfield | MT | West side of Big Dry Creek 56km S of Lismas at Twitchell Ranch | Cretaceous | Hell Creek | dinosaurs-Triceratops,Tyrannosaurus | MT0103 | 47.59056,-106.39944 | | | , | |||
| Lismas | Garfield | MT | West side of Big Dry Creek 79.2km S of Lismas | Cretaceous | Hell Creek | dinosaurs-Triceratops,Tyrannosaurus | MT0104 | Also described as 70.4km S of Glasgow | 47.9397,-106.5278,,MCU | | | , | ||
| Lismas | Garfield | MT | area exposures-28.8km E, 36km S, 40km E, 40km S, 44.8km S, 64km S | Cretaceous | Hell Creek | Champsosaurus;dinosaurs-Stygimoloch,Thescelosaurus,Triceratops,others | MT0105 | 47.9397,-106.5278,,MCU | | | , | |||
| Mosby P.O. | Garfield | MT | 1 km W off hwy18 in s11t14nr30e in shale Mosby; Montana: Garfield Co. -107.8838, 46.9922 at a distance of 409 m | Cretaceous Upper | large ammonites - Dunveganoceras,Metoicoceras | MT0106 | 46.9922,-107.8838, s11t14nr30e | | | , | ||||
| Mosby P.O. | Garfield | MT | 2 to 3 km E on hwy18 in s11t14nr30e in shale Mosby; Montana: Garfield Co. -107.8838, 46.9922 at a distance of 409 m | Cretaceous Upper | Colorado | poorly preserved fossils Colligoniceras | MT0107 | 46.9922,-107.8838, s11t14nr30e | | | , | |||
| Mosby P.O. | Garfield | MT | 500 meters E on hwy18 in s11t14nr30e in shale Mosby; Montana: Garfield Co. -107.8838, 46.9922 at a distance of 409 m | Cretaceous Upper | Carlile | shark teeth,Colligoniceras | MT0108 | 46.9922,-107.8838, s11t14nr30e | | | , | |||
| Mosby P.O. | Garfield | MT | 8 km E in s3t14nr31e in shale Shaw Dam; Montana: Garfield Co. -107.7757, 46.9983 at a distance of 693 m | Cretaceous Upper | large ammonites - Dunveganoceras,Metoicoceras | MT0109 | 46.9983,-107.7757, s3t14nr31e | | | , | ||||
| Blacktail Creek | Glacier | MT | Cretaceous | Two Medicine | dinosaur bones-Hadrosaurus | MT0110 | 46.6092,-111.3881,,MCU | | | , | ||||
| Buffalo Lake | Glacier | MT | 4.8km W (72km W of Sweet Grass) | Cretaceous | St Mary River | Dinosaur-Montanoceratops | MT0111 | 48.8583,-112.7350,,MCU | | | , | |||
| Cut Bank | Glacier | MT | 19.2km SW | Cretaceous | Two Medicine | dinosaur bones-Hadrosaurus;Turtles | MT0112 | 48.6414,-112.3308,,MCU | | | , | |||
| Cut Bank | Glacier | MT | 24.6km SW | Cretaceous | Two Medicine | dinosaur bones-Euoplocephalus | MT0113 | 48.6414,-112.3308,,MCU | | | , | |||
| Cut Bank | Glacier | MT | 26.2km SW | Cretaceous | Two Medicine | dinosaur bones-Procheneosaurus | MT0114 | 48.6414,-112.3308,,MCU | | | , | |||
| Family Mission | Glacier | MT | On Two Medicine River 16km above | Cretaceous | St Mary River | Dinosaur-Hadrosaurus | MT0115 | 48.4819,-112.7436,,MCU | | | , | |||
| Family Mission | Glacier | MT | On Two Medicine River 7.2km above | Cretaceous | St Mary River | Dinosaur-Hadrosaurus | MT0116 | 48.4819,-112.7436,,MCU | | | , | |||
| Family Mission | Glacier | MT | On Two Medicine River 9.2km above | Cretaceous | St Mary River | Dinosaur bones | MT0117 | 48.4819,-112.7436,,MCU | | | , | |||
| Feinberg Ranch | Glacier | MT | Cretaceous | Two Medicine | dinosaur bones-Bambiraptor | MT0118 | | | , | |||||
| Manhattan | Glacier | MT | Cambrian Upper | Wolsey | Glyphaspis | MT0119 | 45.8564,-111.3300,,MCU | | | , | ||||
| Milk River | Glacier | MT | At Landslide Butte | Cretaceous | Two Medicine | dinosaur bones | MT0120 | 48.8383,-113.1686,,MCU | | | , | |||
| Milk River | Glacier | MT | North Fork near Halls Ranch | Cretaceous | Two Medicine | dinosaur teeth | MT0121 | 48.8383,-113.1686,,MCU | | | , | |||
| Piegan | Glacier | MT | 8km SE on Blacktail Creek | Cretaceous | Two Medicine | dinosaur bones-Hadrosaurus;Turtles-Baena | MT0122 | 48.6306,-112.6467,,MCU | | | , | |||
| Sweet Grass | Glacier | MT | 48km W on South Milk River | Cretaceous | Two Medicine | dinosaur bones-Lambeosaurus | MT0123 | Probably from quarry active in 1915-16 | 45.8978,-109.7158,,MCU | | | , | ||
| Two Medicine River | Glacier | MT | Cretaceous | Two Medicine | dinosaur bones;Turtles-Basilemys | MT0124 | 48.4106,-113.0575,,MCU | | | , | ||||
| - | Glacier,Flathead | MT | In the Western part of the Park and in adjacent Idaho | Neoproterozoic | Belt Group | stromatolites | MT0127 | 47.4767,-107.5450,,MCU | | | , | |||
| - | Glacier,Flathead | MT | along Going to the Sun Highway | Precambrian | Belt Group | Stromatolites - Collenia | MT0125 | 47.4767,-107.5450,,MCU | | | , | |||
| - | Glacier,Flathead | MT | along Going-To-The-Sun Highway | Precambrian | Algal reefs | MT0126 | 47.4767,-107.5450,,MCU | | | , | ||||
| Ryegate | Golden Valley | MT | Marine fossils in rimrock to S | ? | MT0128 | 46.2972,-109.2581,,MCU | | | , | |||||
| - | Granite | MT | Ku-Mt-9 Unit 10 Middle Cabbage Patch Beds SW corner, SE 1/4, NW 1/4, SW 1/4, SE 1/4, Sec. 1, T10N, R12W 46.646389 -113.04640 | Oligocene, Middle | Renova | - | MT0224 | miomap.berkeley.edu/Locality.xls | 46.646389, -113.04640 | | | , | ||
| Drummond | Granite | MT | 8km SE in Coolerleys Hollow | Cretaceous, Lower(?) | fossils | MT0218 | An American Geological Railway Guide P259 | 46.667431,-113.147286,,CU | | | , | |||
| Philipsburg | Granite | MT | Coral Cladopora | MT0129 | 46.3322,-113.2933,,MCU | | | , | ||||||
| Bear Creek | Jefferson | MT | Bear Creek Coal Mine 1.6km S of Bear Creek | Paleocene | Fort Union | vertebrates-bird claws;crocodile bones,teeth;Champsosaurus;turtles-Plastomenus,others;mammals-Apatemys,Apheliscus,Carpolestes,Lampadophorus,Leipsanolestes,Paramys,Pentacodon,Planetetherium,Plesiadapis,Protentomodon,Talpavus,Thryptacodon,Viverravus | MT0130 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.3017,-112.6908,,MCU | | | , | ||
| Bull Mountain | Jefferson | MT | on SE flank S30t2nr3w-s31t2nr3w Sunlight; Montana: Jefferson Co. -112.0175, 45.8999, ( 5191 ft ) at a distance of 603 m | Oligocene Lower | Bozeman | Tapir,Merycoidon,turtles,etc. | MT0131 | 45.8999,-112.0175, S30t2nr3w-s31t2nr3w | | | , | |||
| Jefferson River | Jefferson | MT | In se1/4 nw1/4s22t2nr2w 45.9115N,-111.8365W | Devonian | Three Forks | Conularia,bryozoa - 4 species,crinoid columnals - 6 species,brachiopods - 21 species,pelecypods - 13 species,gastropods - 4 species,cephalopods - 8 species,arthropods -- 3 species | MT0132 | 45.9115,-111.8365, se1/4 nw1/4s22t2nr2w | | | , | |||
| Jefferson River | Jefferson | MT | in Se1/4ne1/4s17t2nr3w Sheep Rock; Montana: Jefferson Co. -112.0002, 45.9210, ( 5568 ft ) at a distance of 612 m | Devonian | Three Forks | Conularia,bryozoa - 4 species,crinoid columnals - 6 species,brachiopods - 21 species,pelecypods - 13 species,gastropods - 4 species,cephalopods - 8 species,arthropods -- 3 species | MT0133 | 45.9210,-112.0002, Se1/4ne1/4s17t2nr3w | | | , | |||
| Jefferson River | Jefferson | MT | in ne1/4 se1/4 s17 | Devonian | Three Forks | Conularia,bryozoa - 4 species,crinoid columnals - 6 species,brachiopods - 21 species,pelecypods - 13 species,gastropods - 4 species,cephalopods - 8 species,arthropods -- 3 species | MT0135 | 45.9275,-111.5072,,MCU | | | , | |||
| Jefferson River | Jefferson | MT | in ne1/4ne1/4s29t2nr2w Doherty Mountain; Montana: Jefferson Co. -111.8986, 45.8913, ( 5678 ft ) at a distance of 1708 m | Devonian | Three Forks | Conularia,bryozoa - 4 species,crinoid columnals - 6 species,brachiopods - 21 species,pelecypods - 13 species,gastropods - 4 species,cephalopods - 8 species,arthropods -- 3 species | MT0134 | 45.8913,-111.8986, ne1/4ne1/4s29t2nr2w | | | , | |||
| Little Pipestone | Jefferson | MT | Oligocene | Renova | vertebrates:Pelycomys | MT0136 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.8764,-112.1747,,MCU | | | , | |||
| McCartys Mountain | Jefferson | MT | Oligocene | Renova | vertebrates:Agriochoerus,Caenopus,Oreonetes | MT0137 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | | | , | ||||
| Miles | Jefferson | MT | 13 km E in road cut on Hwy 12 | Paleocene | Fort Union | leaf fossils | MT0138 | 45.0853,-109.3494,,MCU | | | , | |||
| Miles | Jefferson | MT | area exposures | Paleocene | Fort Union | leaf fossils,vertebrates,mollusks | MT0139 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.0853,-109.3494,,MCU | | | , | ||
| N Boulder Valley | Jefferson | MT | on W side in s25t3nr3w South Fork Cottonwood Creek mouth; Montana: Jefferson Co. -111.9369, 45.9732 at a distance of 1818 m | Miocene | Bozeman | Cosoryx,Mesohippus,Protohippus,Camelids,Procamelus. | MT0140 | 45.9732,-111.9369, s25t3nr3w | | | , | |||
| Pipestone Springs | Jefferson | MT | Eocene | Chadron | Mammal Reference Location | MT0141 | 45.8967,-112.2306,,SCU | | | , | ||||
| Pipestone Springs | Jefferson | MT | Oligocene | Renova | mammals:Adjidaumo,Apternodus,Bathygenys,Cylindrodon,Domnina,Eumys,Fricktops,Hesperocyon,Hyracodon,Ischyromys,Leptictis,Leptomeryx,Leptotragulus,Leptotragus,Megalagus,Merycoidodon,Mesohippus,Micropternodus,Palaeolagus,Paradjidaumo,Peratherium,... | MT0142 | 45.8967,-112.2306,,SCU | | | , | ||||
| Little Belt Mountains | Judith Basin | MT | on Yogo Creek at mouth of Bear Gulch is S1t13nr10e in dolomite above shales Bear Gulch mouth; Montana: Judith Basin Co. -110.3941, 46.9089 at a distance of 1196 m | Devonian | Jefferson | shark teeth,Lingula,corals,brachiopods | MT0143 | 46.9089,-110.3941, S1t13nr10e | | | , | |||
| Gordon Mountain | Lake | MT | In sandy beds at head of South Fork of Flathead River | Cambrian Middle | Brigham Quartzite | Typical Middle Cambrian fossils | MT0210 | Walcott-Cambrian Geology and Paleontology P7 | 48.2958,-115.7500,,MCU | | | , | ||
| Gordon Mountain | Lake | MT | On Gordon Creek 4km above junction with Danaher Creek in shales above sandstones | Cambrian Middle? | Wolsey | Brachiopods-Acrothele,Wimanella;Trilobites-Albertella,Olenopsis,Ptychoparia,Bathyuriscus | MT0211 | Walcott-Cambrian Geology and Paleontology P22 | 48.2958,-115.7500,,MCU | | | , | ||
| Gordon Mountain | Lake | MT | On ridge between Gordon and Young Creeks half way between Gordon Mountain and Cardinal Peak | Cambrian Middle | Wolsey Shale | Brachiopod-Micromitra | MT0212 | Walcott-Cambrian Geology and Paleontology P56 | 48.2958,-115.7500,,MCU | | | , | ||
| Lake Levale | Lewis and Clark | MT | Cambrian | Pentagon | Trilobites-Bathyuriscus | MT0144 | | | , | |||||
| Slategoat Mountain | Lewis and Clark | MT | S flank at the Head of Glenn Creek in S10t22nr112(should be R11W) Can't resolve PLSS loc | Mississippian | crinoid fragments | MT0145 | 47.670965,-113.003139,S10T22NR11W,GA | | | , | ||||
| Alder | Madison | MT | about 21 km away in paper shales in Ruby River Basin between Peterson and Morgan Creek | Oligocene | insects and plants. | MT0146 | 45.3239,-112.1064,,MCU | | | , | ||||
| Bighorn Mountains | Madison | MT | In 500 meters thick Limestone exposure | Carboniferous | Madison | Brachiopods,pelecypods,crinoids -- Spirifer,Spiriferina,Cyrtina,Syringothyris,Reticularia,Rhynchopora,Schellwienella,Orthotetes,Schuchertella,Leptaena,Chonetes,Productus,Echinoconchus,Actita[?],Cactocrinus,Phillipsia,Straparolus | MT0147 | Actita=Platyceras | | | , | |||
| Black Butte | Madison | MT | In tuffs | Oligocene | Titanotheres,Leptomeryx,agrichoerids(Oreodonts),Trigonias(a rhinoceros) | MT0148 | 45.0097,-111.0972,,MCU | | | , | ||||
| Cave Mountains | Madison | MT | In 500 meters thick Limestone exposure | Carboniferous | Madison | Brachiopods,pelecypods,crinoids -- Spirifer,Spiriferina,Cyrtina,Syringothyris,Reticularia,Rhynchopora,Schellwienella,Orthotetes,Schuchertella,Leptaena,Chonetes,Productus,Echinoconchus,Actita[?],Cactocrinus,Phillipsia,Straparolus | MT0149 | Actita=Platyceras | | | , | |||
| Cottonwood Creek | Madison | MT | to S in 50 meters thick sandstone bed | Cretaceous | Inoceramus to 15cm | MT0150 | 45.0694,-107.5342,,MCU | | | , | ||||
| Fossil Creek | Madison | MT | N of Centennial Valley on W side of creek s4t12r2w Fossil Creek head; -111.8447, 44.8235 at a distance of 917 m | Triassic Lower | Woodside|Thaynes | Columbites,Tirolites,Meekoceras | MT0151 | 44.8235,-111.8447, s4t12r2w | | | , | |||
| Gravelly Range | Madison | MT | at Cave Mountain in claystone | Devonian Lower | Ambocoelia,Palaeoneilo,Rhipidomella | MT0152 | 45.0892,-111.8561,,MCU | | | , | ||||
| Gravelly Range | Madison | MT | at Dry Hollow in claystone | Devonian Lower | Ambocoelia,Palaeoneilo,Rhipidomella | MT0153 | 45.0892,-111.8561,,MCU | | | , | ||||
| Judith River | Madison | MT | Near mouth of Judith River in sandstone above pierre Shale | Cretaceous | Tapes,Mactra,Sanguinolaria,Thracia,Vanikoropsis | MT0217 | http://www.usace.army.mil/publications/eng-pamphlets/ep870-1-22/c-4.pdf | | | , | ||||
| Lion Mountain | Madison | MT | In tuffs | Oligocene | Titanotheres,Leptomeryx,agrichoerids,Tigonias | MT0154 | 45.6294,-112.9869,,MCU | | | , | ||||
| McCarty's Mountain | Madison | MT | On N side of Big Hole River | Eocene | Chadron | Mammal Reference Location | MT0155 | | | , | ||||
| Monument Ridge | Madison | MT | along road to E | Jurassic | Ellis | Ostrea,Pentacrinus | MT0156 | 44.9444,-111.8511,,MCU | | | , | |||
| Monument Ridge | Madison | MT | in numerous small gullies at head of Red Creek | Jurassic | Morrison | dinosaur bones,Stegosaurus | MT0157 | 44.9444,-111.8511,,MCU | | | , | |||
| Peterson | Madison | MT | between Peterson and Morgan Creek in paper shales | insects,plants | MT0158 | 47.8933,-104.3400,,MCU | | | , | |||||
| Raw Liver Creek | Madison | MT | S17T8SR3E Raw Liver Creek mouth; Montana: Madison Co. -111.4083, 45.1193 at a distance of 2912 m | Cretaceous | Livingstone | Ostariostoma | MT0159 | 45.1193,-111.4083, S17T8SR3E | | | , | |||
| Sappington | Madison | MT | 3.5 km WSW along Antelope Creek in se1/4nw1/4s2t1r2w George Hemund Dam; Montana: Madison Co. -111.8191, 45.7716 at a distance of 800 m | Mississippian Lower | Sappington Sandstone | Algal nodules containing silicified brachiopods,bryozoa,pelecypods,worm tubes,forams,Rhipidomella,Chonetes,Syringothyris,Spirifer,Camarotoechia,Schuchertella,Delthyris,Ambocoelia,Composita,Orbicula,Productid brachiopods,cup corals,pelecypods | MT0160 | 45.7716,-111.8191, se1/4nw1/4s2t1r2w | | | , | |||
| Virginia City | Madison | MT | in Ruby Mountains | Oligocene | Renova | fossil plants | MT0161 | 45.2939,-111.9453,,MCU | | | , | |||
| - | McCone | MT | Olive Fauna | Paleocene | Fort Union | vertebrates-mammals-Palaeosinopa,Thryptacodon | MT0168 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | | | , | |||
| Bug Creek | McCone | MT | Bug Creek Anthills | Paleocene | Tullock[?] | Vertebrates-Catopsalis,Cimexomys,Erinaceomorpha,Essonodon,Glasbius,Meniscoessus,Mesodma,Procerberus,Protungulatum | MT0162 | Original says 'Tulock formation'. CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.9722,-113.9200,,MCU | | | , | ||
| Bug Creek | McCone | MT | In debris associated with anthills. Multiple localities including 'Duen Locality' | Cretaceous | Hell Creek | turtles-Adocus,Compsemys,Eubaena,Palatobaena,Trionyx;reptiles-crocodiles-Brachychampsa,Leidyosuchus;Champsosaurus;birds;Squamata-Chamops,Coniophis,Leptochamops,Pancelosaurus,Parasaniwa;Urodela-Habrosaurus,Haptosphenus,Lisserpeton?,Opisthotriton,... | MT0163 | 47.9722,-113.9200,,MCU,SW1/4S9T22NR43E | | | , | |||
| Devil's Creek | McCone | MT | Cretaceous | Hell Creek | turtles-Adocus,Compsemys | MT0164 | | | , | |||||
| Harbicht Hill | McCone | MT | Area exposures 1.6km N and S | Cretaceous | Hell Creek | turtles-Asperidites,Compsemys | MT0165 | | | , | ||||
| Harbicht Hill | McCone | MT | S32T25NR43E West Fork Sand Arroyo head; -106.1987, 47.8678 at a distance of 989 m | Cretaceous-Paleocene | Hell Creek | reptiles-Tyrannosaurus,mammals-primates-Purgatorius(a single tooth);fish-Micropristis | MT0166 | 47.8678,-106.1987, S32T25NR43E | | | , | |||
| Oswego | McCone | MT | 24km S on Shade Creek | Cretaceous | Hell Creek | vertebrates-dinosaurs-Triceratops | MT0167 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 48.0708,-105.8872,,MCU | | | , | ||
| Camp Baker | Meagher | MT | At Moss Agate Springs | Cambrian | Trilobites-Arionellus | MT0214 | http://www.usace.army.mil/publications/eng-pamphlets/ep870-1-22/c-4.pdf | | | , | ||||
| Camp Baker | Meagher | MT | In limestone above the 'Potsdam Sandstone' | Cambrian | Trilobites-Crepicephalus | MT0213 | http://www.usace.army.mil/publications/eng-pamphlets/ep870-1-22/c-4.pdf | | | , | ||||
| Musselshell River | Meagher | MT | In Musselshell River Canyon | Carboniferous | Pinna | MT0216 | http://www.usace.army.mil/publications/eng-pamphlets/ep870-1-22/c-4.pdf | | | , | ||||
| White Sulphur Springs | Meagher | MT | near Little Birch Creek | Precambrian | Brachiopods to 4 cm. | MT0169 | 46.5478,-110.9022,,MCU | | | , | ||||
| Melstone | Musselshell | MT | 16km N | Cretaceous | Judith River | vertebrates-dinosaurs;turtles | MT0170 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 46.7378,-107.8208,,MCU | | | , | ||
| Carbella | Park | MT | to SW in Miner Basin just outside Yellowstone Park boundaries | Petrified Wood | MT0171 | 45.2078,-110.9039,,MCU | | | , | |||||
| Cooke City | Park | MT | SE S of US12 just over Wyoming Line | Devonian Lower | Beartooth Butte | Fossils | MT0172 | 45.0167,-109.9333,,MCU | | | , | |||
| Lodgepole Creek | Phillips | MT | In Little Rocky Mountains | Cambrian Middle-Cambrian Upper | Trilobites-Cedaria,Arapahoia,Crepicephalus,Elvinia and several other genera | MT0209 | 45.0853,-113.2936,,MCU | | | , | ||||
| Badger Creek | Pondera | MT | 4km above mouth of creek | Cretaceous | Two Medicine | dinosaur bones | MT0174 | 45.0122,-106.8125,,MCU | | | , | |||
| Dupuyer | Pondera | MT | 27.2km NW | Cretaceous | Two Medicine | dinosaur bones | MT0175 | 48.1925,-112.4986,,MCU | | | , | |||
| - | Pondera,Glacier | MT | in 550 meters of greenish clays non-marine and sandstones with thin marine layer in Middle | oysters,muscles,snails,plants,dinosaur bones. | MT0176 | 47.4767,-107.5450,,MCU | | | , | |||||
| - | Pondera,Glacier | MT | in gray limy shales capped by sandstone | Cretaceous Upper | Bearpaw Shale | oysters,muscles,and other fresh water mollusks | MT0177 | 47.4767,-107.5450,,MCU | | | , | |||
| Bay Horse | Powder River | MT | nearby | Paleocene | Tongue River | fish-Knightia | MT0178 | 45.0433,-105.5664,,MCU | | | , | |||
| Helmville | Powell | MT | Helmville No 2 Units 12-13 Ku-Mt-7 in Lower Cabbage Patch Beds S 1/2, NE 1/4, Sec. 28, T13N, R11W 46.855556 -112.99170 | Oligocene | Renova | - | MT0222 | miomap.berkeley.edu/Locality.xls | 46.855556, -112.99170 | | | , | ||
| Pikes Peak | Powell | MT | Ku-Mt-8 Units 6 and 12 in Upper Cabbage Patch Beds -Pikes Peak No. 1 center E 1/4, NW 1/4, SW 1/4, Sec. 30, T9N, R10W 46.504722 -112.90830 | Oligocene-Miocene | Renova | - | MT0223 | miomap.berkeley.edu/Locality.xls | 46.855556, -112.99170 | | | , | ||
| Snow Creek | Rosebud | MT | In breaks of Snow Creek | Cretaceous | Hell Creek | vertebrates-dinosaurs-Paronychodon,Triceratops | MT0179 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 45.7750,-104.2225,,MCU | | | , | ||
| Woodin | Silver Bow | MT | Divide No. 1; Goodin Ku-Mt-4 4.8 to 6.4 km N of NW 1/4, NW 1/4, NE 1/4, SE 1/4, sec. 28, T1N, R9W 45.807778 -112.72030 in Upper Cabbage Patch Beds | Oligocene-Miocene | Renova | - | MT0221 | miomap.berkeley.edu/Locality.xls | 45.807778, -112.72030 | | | , | ||
| Big Timber | Sweet Grass | MT | 20 km N E of US191 | Mammal Fossils | MT0180 | 45.8350,-109.9547,,MCU | | | , | |||||
| Big Timber | Sweet Grass | MT | 20 km N W of US191 in Crazy Mountains | Fossils | MT0181 | 45.8350,-109.9547,,MCU | | | , | |||||
| Big Timber | Sweet Grass | MT | 40 km NE in Fish Creek Hills | Reptile Fossils. | MT0182 | 45.8350,-109.9547,,MCU | | | , | |||||
| Crazy Mountain | Sweet Grass | MT | Area Exposures? Gidley Quarry,This is often referred to as the 'Crazy Mountain Field' and sometimes as the 'Crazy Mountain Basin' | Paleocene | Lebo | Amphibians-Habrosaurus,Opisthotriton;Scapherpeton;birds;crocodiles;mammals;Squamata-Machaerosaurus,Palaeoxantusia,Peltosaurus,Proxestops | MT0183 | 45.0392,-109.7122,,MCU | | | , | |||
| Derby | Sweet Grass | MT | area exposures--Clay Butte (s9t3R15), Gidley Quarry Derby Mountain; Montana: Sweet Grass Co. -109.8801, 45.5832, ( 7057 ft ) at a distance of 631 m or Latitude/Longitude 46.0236N,-109.8653W ( 46, 1', 24.8 N; 109, 51', 55.1 W ) The legal description is: Montana, Principal Meridian T3N,R15E,sec9 Lower Sweet Grass Canal; Montana: Sweet Grass Co. -109.8499, 46.0388 at a distance of 2075 m | Paleocene | Fort Union | vertebrates-turtles;mammals-Adunator,Anconodon,Anisonchus,Aphronorus,Arctocyonoides[?],Avunculus,Chriacus,Coriphagus,Cynarctus,Ectypodus,Eudaemonema,Gelastops,Haplaletes,Ictidopappus,Leptacodon,Litaletes,Litomylus,Mimetodon,Mimotricentes,Myrmecoboides,Neo | MT0187 | 'Arctocyonoides' is probably a misspelling or an obscure synonym for some other form. CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 46.0388,-109.8499, s9t3R15 | | | , | ||
| Gidley Quarry | Sweet Grass | MT | Paleocene Upper | Fort Union | Mammal Fossils | MT0184 | | | , | |||||
| Scarritt Quarry | Sweet Grass | MT | Paleocene | Fort Union | vertebrates-reptiles-Champsosaurus;mammals-Carpodaptes,Dissacus,Elpidophorus,Ignacius,Leptacodon,Litolestes,Lipotyphla,Neoplagiaulax,Palaeosinopa,Paleotomus,Pantolambda,Plesiadapis,Propalaeosinopa,Thryptacodon | MT0185 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | | | , | ||||
| Siberling Quarry[?] | Sweet Grass | MT | Paleocene | Fort Union | mammals-Picrodus,Promioclaenus,Propalaeosinopa | MT0186 | Albert C. Siberling was a Smithsonian vertebrate collector active in the late 19th and early 20th Century | | | , | ||||
| Choteau | Teton | MT | 28.8km W | Cretaceous | Two Medicine | dinosaur bones-Hadrosaurus | MT0188 | 47.8125,-112.1828,,MCU | | | , | |||
| Willow Creek Anticline | Teton | MT | Cretaceous | Two Medicine | dinosaur eggs | MT0189 | | | , | |||||
| - | Valley | MT | in area exposures | Cretaceous Upper | Bearpaw Shale | Baculites | MT0193 | | | , | ||||
| Glasgow | Valley | MT | 48km S | Cretaceous | Hell Creek | dinosaurs-Tyrannosaurus;pterosaurs | MT0190 | 48.1969,-106.6361,,MCU | | | , | |||
| Lismas | Valley | MT | 28.8 km at Bear Creek Coal Mine | Cretaceous | Hell Creek | vertebrates-dinosaur bones | MT0191 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | 47.9397,-106.5278,,MCU | | | , | ||
| Missouri River | Valley | MT | along River and tributaries | Cretaceous | Pierre | Ostrea,Avicula,Inoceramus,Chlamys,Yoldia,Nucula,Lucina,Protocardia,Callista,Lunatia,Scaphites,Nautilus,Modiola,Veniella,Anchura,Haminea,Pyrofusus,Dentalium,Baculites | MT0192 | 48.1233,-104.4744,,MCU | | | , | |||
| Bear Butte | Wheatland | MT | NW of Bear Butte | Paleocene | Fort Union | vertebrates-crocodile teeth | MT0194 | CAUTION:Collecting vertebrate material in the US requires landowner or government permission | | | , | |||
| Harlowtown | Wheatland | MT | 19.2km SE at Middle Dome | Cretaceous | Kootenai | Turtles-Naomichelys | MT0196 | | | , | ||||
| Harlowtown | Wheatland | MT | At Middle Dome 19.2km SE | Cretaceous | Cloverly | reptiles-Microvenator,Tenontosaurus;crocodiles;turtles-Naomichelys | MT0197 | | | , | ||||
| Harlowtown | Wheatland | MT | SE | Fossils | MT0198 | | | , | ||||||
| Harlowtown | Wheatland | MT | Gastropod Goniobasis | MT0195 | | | , | |||||||
| Shawmut | Wheatland | MT | 48km SE on Ridge | Cretaceous | Hell Creek Sandstone | ammonites,Sphenodiscus,Acanthoscaphites Baculites. | MT0199 | 46.3425,-109.5242,,MCU | | | , | |||
| Shawmut | Wheatland | MT | at KT boundary | Cretaceous-Paleocene | plant remains --Auricaria,crocodile teeth and scales,fish scales,saurian teeth,coal,petrified wood. | MT0200 | 46.3425,-109.5242,,MCU | | | , | ||||
| Bloom Locality | Wibaux | MT | Two localities at 46.69N,-104.341W | Cretaceous | Hell Creek | dinosaurs-Ornithomimus | MT0201 | 46.69,-104.341 | | | , | |||
| Bloom Locality | Wibaux | MT | Two localities at 47.0076N,-104.5548W | Cretaceous | Hell Creek | dinosaurs-Ornithomimus | MT0201 | 47.0076,-104.5548 | | | , | |||
| Yellowstone Canyon | Yellowstone | MT | Outside and just W of entrance near Brisbin | fossils | MT0219 | An American Geological Railway Guide P263 | 45.616918,-109.298636,,CU | | | , |
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