18 miles east of Lismas (AMNH): Late/Upper Maastrichtian, Montana
collected by B. Brown 1909
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Thescelosaurus neglectus
Gilmore 1913
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Galton 1974 | 1 specimen | ||||||||
| Galton 1997 lists AMNH 5020, but AMNH site lists AMNH 5052; confirmed by Galton 1974 | ||||||||||
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Reptilia
- Hadrosauridae
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Hadrosauridae indet.
Cope 1869
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1 specimen | |||||||||
| AMNH 5053 | ||||||||||
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Reptilia
- Baenidae
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Palatobaena bairdi
Gaffney 1972
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Archibald and Hutchison 1979 | |||||||||
| AMNH 2603 (nearly complete lower jaws) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Valley |
| Coordinates: | 47.9° North, 106.2° West (view map) | ||||
| Paleocoordinates: | 54.5° North, 79.0° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Late/Upper Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Hell Creek |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Disassociated major elements: | all |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | AMNH | ||
| Collectors: | B. Brown | Collection dates: | 1909 |
Metadata
| Database number: | 48629 | ||
| Authorizer: | M. Carrano, P. Mannion | Enterer: | M. Carrano, P. Mannion |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-03-24 14:28:21 | Last modified: | 2013-04-15 17:21:50 |
| Access level: | the public | Released: | 2005-03-24 14:28:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 12319. | ETE | R. S. Lull and N. E. Wright. 1942. Hadrosaurian dinosaurs of North America. Geological Society of America Special Paper 40:1-242 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 38165 | J. D. Archibald and J. H. Hutchison. 1979. Revision of the genus Palatobaena (Testudines, Baenidae), with the description of a new species. Postilla 177:1-19 [P. Mannion/P. Mannion/P. Holroyd] | |
| 12623 | ETE | P. M. Galton. 1974. Notes on Thescelosaurus, a conservative ornithopod dinosaur from the Upper Cretaceous of North America, with comments on ornithopod classification. Journal of Paleontology 48(5):1048-1067 [M. Carrano/M. Carrano/J. Alroy] |
| 12974 | ETE | P. M. Galton. 1997. Cranial anatomy of the basal hypsilophodontid dinosaur Thescelosaurus neglectus Gilmore (Ornithischia: Ornithopoda) from the Upper Cretaceous of North America. Revue de Paléobiologie, Genève 16(1):231-258 [M. Carrano/M. Carrano/M. Carrano] |