mouth of Birch Creek: Middle Campanian, Montana
collected by E. D. Cope 1876
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Ceratopsidae
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Monoclonius crassus n. gen., n. sp.
Cope 1876
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| AMNH 3998, 3997 (11 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Chouteau |
| Coordinates: | 47.7° North, 109.6° West (view map) | ||||
| Paleocoordinates: | 57.7° North, 66.0° West (Wright 2013) | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 748 meters | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Middle Campanian | ||
| Age range of interval: | 83.6 - 72.1 m.y. ago |
Stratigraphy
| Geological group: | Montana | Formation: | Judith River | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: near base of JRF | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Lithology description: "sandstone" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Fragmentation: | frequent |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | AMNH | ||
| Collectors: | E. D. Cope | Collection dates: | 1876 |
Metadata
| Also known as: | Dog Creek | ||
| Database number: | 46121 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-01-04 05:48:59 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-01-04 05:48:59 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 15650. | ETE | E. D. Cope. 1876. Descriptions of some vertebrate remains from the Fort Union Beds of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 28:248-261 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 17576 | ETE | E. D. Cope. 1877. Report on the geology of the region of the Judith River, Montana, and on vertebrate fossils obtained on or near the Missouri River. Bulletin of the United States Geological and Geographical Survey 3(3):565-597 [M. Carrano/M. Carrano/E. Vlachos] |
| 9274 | E. D. Cope. 1889. The horned Dinosauria of the Laramie. The American Naturalist 23(272):715-717 [M. Carrano/M. Carrano/M. Carrano] | |
| 12304 | ETE | J. B. Hatcher, O. C. Marsh, and R. S. Lull. 1907. The Ceratopsia. Monographs of the United States Geological Survey 49:1-198 [M. Carrano/M. Carrano/M. Carrano] |
| 12314 | ETE | R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175 [M. Carrano/M. Carrano/M. Carrano] |