1975-BDM-01: Lancian, North Dakota
collected by Appalachian State University 1975
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Ceratopsidae
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Triceratops sp.
Marsh 1889
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| BDM 061 (incomplete skull and numerous postcranial bones); briefly mentioned by Farke et al. (2009) as “ASU unnumbered” | ||||||||||
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Reptilia
- Testudines
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Hutchemys walkerorum n. sp.
Jasinski et al. 2022
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| Holotype: BDM 063, an incomplete carapace representing the majority of the anterior of the carapace | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | North Dakota | County: | Slope |
| Coordinates: | 46.3° North, 103.9° West (view map) | ||||
| Paleocoordinates: | 52.5° North, 77.3° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Lancian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Hell Creek |
Lithology and environment
| Primary lithology: | mudstone |
| Includes fossils? | Y |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | Appalachian State University | Collection dates: | 1975 |
Metadata
| Also known as: | Northwest of Marmarth | ||
| Database number: | 224667 | ||
| Authorizer: | P. Mannion | Enterer: | G. Varnham, P. Mannion |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2022-03-28 05:20:28 | Last modified: | 2022-08-17 11:11:53 |
| Access level: | the public | Released: | 2022-03-28 05:20:28 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 81027. | S. E. Jasinski, A. B. Heckert, C. Sailar, A. J. Lichtig, S. G. Lucas and P. Dodson. 2022. A softshell turtle (Testudines: Trionychidae: Plastomeninae) from the uppermost Cretaceous (Maastrichtian) Hell Creek Formation, North Dakota, USA, with implications for the evolutionary relationships of plastomenines and other trionychids. Cretaceous Research 135:105172 [P. Mannion/G. Varnham] |