Tylosteus type site (PROXY): Late/Upper Maastrichtian, Montana
collected by F. V. Hayden -1867
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Tylosteus ornatus n. gen., n. sp.
Leidy 1872
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1 specimen | |||||||||
| synonym of Pachycephalosaurus wyomingensis | ||||||||||
| ANSP 8568 | ||||||||||
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Reptilia
- Hadrosauridae
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Edmontosaurus sp.
Lambe 1917
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Baird 1979 | 1 specimen | ||||||||
| ANSP 8947 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Carter |
| Coordinates: | 45.1° North, 104.9° West (view map) | ||||
| Paleocoordinates: | 51.6° North, 79.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| 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: | Lance |
| 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 |
| Fragmentation: | extreme |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | surface (float),field collection,survey of museum collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | F. V. Hayden | Collection dates: | pre-1867 |
| Collection method comments: exact date unknown, prior to 1867 likely because specimens would otherwise have been sent to the Smithsonian | |||
Metadata
| Also known as: | Missouri River, Blackfeet | ||
| Database number: | 91359 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2009-09-16 09:25:16 | Last modified: | 2023-08-23 10:40:29 |
| Access level: | the public | Released: | 2009-09-16 09:25:16 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 30722. | ETE | J. Leidy. 1872. Remarks on some extinct vertebrates. Proceedings of the Academy of Natural Sciences of Philadelphia 24(1):38-40 [M. Carrano/M. Carrano] |
Secondary references:
| 12443 | ETE | D. Baird. 1979. The dome-headed dinosaur Tylosteus ornatus Leidy 1872 (Reptilia: Ornithischia: Pachycephalosauridae). Notulae Naturae 456:1-11 [M. Carrano/M. Carrano/M. Carrano] |
| 85707 | B. H. Breithaupt. 1999. The first discoveries of dinosaurs in the American west. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:59-65 [M. Carrano/M. Carrano] |