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AMNH 3238, Dawson County, Montana, USA
| Lat/Long (Decimal) | 46.95,-104.77 |
|---|---|
| Co-ordinates Derivation | estimated from map |
| Given Location | Montana, United States |
| Mindat.org Region (for given coordinates) | Dawson County, Montana, USA |
Collections
| Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
|---|---|---|---|---|---|
| AMNH 3238, Cedar Creek | Grier J. C., Grier J. W. (1998) | Pierre Shale | "shale" | 70.6 - 66 Ma Late/Upper Cretaceous | |
| AMNH 3239, Cedar Creek | Grier J. C., Grier J. W. (1998) | Pierre Shale | Baculites baculus/grandis zone. At these localities there is no clear distinction between the B. baculus and B. grandis zones; hence, they have been considered to be a single stratum in this area (cf. Bishop, 1967). | "shale" | 70.6 - 66 Ma Late/Upper Cretaceous |
| AMNH 3249, Cedar Creek | Grier J. C., Grier J. W. (1998) | Pierre Shale | Baculites baculus/grandis zone. At these localities there is no clear distinction between the B. baculus and B. grandis zones; hence, they have been considered to be a single stratum in this area (cf. Bishop, 1967). | "shale" | 70.6 - 66 Ma Late/Upper Cretaceous |
Recorded Fossils
| Accepted Name | Hierarchy | Age |
|---|---|---|
 Rhaeboceras burkholderispecies | Animalia : Mollusca : Cephalopoda : Ammonoidea : Scaphitidae : Rhaeboceras : Rhaeboceras burkholderi | 70.6 - 66 Ma Late/Upper Cretaceous |
| Rhaeboceras cedarense species | Animalia : Mollusca : Cephalopoda : Ammonoidea : Scaphitidae : Rhaeboceras : Rhaeboceras cedarense | 70.6 - 66 Ma Late/Upper Cretaceous |
References
| Grier J. C., Grier J. W. (1998) New findings of the ammonite Rhaeboceras, including a new species, from the Pierre Shale of eastern Montana, Journal of Paleontology 72, 473-476 |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
