Judith River badlands (USGS): Middle Campanian - Late/Upper Campanian, Montana
collected by F. v. Hayden 1850
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Trionychidae
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Trionyx foveatus n. sp.
Leidy 1856
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3 specimens | |||||||||
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Reptilia
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Crocodilus humilis
Leidy 1856
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5 specimens | |||||||||
| nomen dubium belonging to Crocodylomorpha | ||||||||||
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Reptilia
- Hadrosauridae
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Trachodon mirabilis n. gen., n. sp.
Leidy 1856
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5 specimens | |||||||||
| nomen dubium belonging to Hadrosauridae | ||||||||||
| ANSP 9260 | ||||||||||
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Reptilia
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Palaeoscincus costatus n. gen., n. sp.
Leidy 1856
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5 specimens | |||||||||
| nomen dubium belonging to Ankylosauria | ||||||||||
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Reptilia
- Troodontidae
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Troodon formosus n. gen., n. sp.
Leidy 1856
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1 specimen | |||||||||
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Reptilia
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Deinodon horridus n. gen., n. sp.
Leidy 1856
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10 specimens | |||||||||
| nomen dubium belonging to Tyrannosauroidea | ||||||||||
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Actinopteri
- Lepisosteiformes
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Lepidotus occidentalis n. sp.
Leidy 1856
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4 elements | |||||||||
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepidotus haydeni n. sp.
Leidy 1856
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1 element | |||||||||
| synonym of Lepidotus occidentalis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Fergus |
| Coordinates: | 47.7° North, 109.6° West (view map) | ||||
| Paleocoordinates: | 54.8° North, 75.9° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Middle Campanian - Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Montana | Formation: | Judith River |
| 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,mesofossils |
| Preservation of anatomical detail: | variable |
| Associated major elements: | some |
| Disassociated major elements: | many |
| Disassociated minor elements: | many |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | surface (float),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | ANSP,USGS | ||
| Collectors: | F. v. Hayden | Collection dates: | 1850s |
Metadata
| Database number: | 69213 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2007-02-21 14:17:53 | Last modified: | 2017-08-02 10:33:00 |
| Access level: | the public | Released: | 2007-02-21 14:17:53 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 13002. | ETE | J. Leidy. 1856. Notices of remains of extinct reptiles and fishes, discovered by Dr. F. V. Hayden in the bad lands of the Judith River, Nebraska Territory. Proceedings of the Academy of Natural Sciences of Philadelphia 8:72-73 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 62949 | E. Hennig. 1915. Fossilium Catalogus. I: Animalia. Pars 9: Stegosauria 1-16 [M. Carrano/M. Carrano/M. Carrano] | |
| 19954 | ETE | J. Leidy. 1860. Extinct vertebrates from the Judith River and Great Lignite Formations of Nebraska. Transactions of the American Philosophical Society 11:139-154 [M. Carrano/M. Carrano] |
| 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] |