Lance Creek (YPM 1891 general): Late/Upper Maastrichtian, Wyoming
collected by J. B. Hatcher 1891
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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1 individual | |||||||||
| YPM 1838 (= Sk. 31) | ||||||||||
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= Triceratops horridus
Marsh 1889
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Ostrom and Wellnhofer 1986 | |||||||||
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Reptilia
- Hadrosauridae
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Anatosaurus sp.
Lull and Wright 1942
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Lull and Wright 1942 | 1 specimen | ||||||||
| synonym of Edmontosaurus | ||||||||||
| YPM 618 | ||||||||||
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Reptilia
- Teiidae
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Lanceosaurus hatcheri n. gen., n. sp.
Gilmore 1928
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Gilmore 1928 | 3 specimens | ||||||||
| nomen vanum belonging to Teiidae | ||||||||||
| USNM 10706 (holotype), greater portion of left dentary with teeth; 10807, incomplete right maxilla; 10808, portion of right dentary with bases of teeth | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Niobrara |
| Coordinates: | 43.2° North, 104.5° West (view map) | ||||
| Paleocoordinates: | 49.6° North, 79.3° 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: | Lance | ||
| Local section: | Lull Lance Creek | Local bed: | 2 |
| Local order: | top to bottom | ||
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Associated major elements: | all |
| Fragmentation: | frequent |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM,YPM | ||
| Collectors: | J. B. Hatcher | Collection dates: | 1891 |
Metadata
| Also known as: | Hatcher Sk. 31 | ||
| Database number: | 52695 | ||
| Authorizer: | M. Carrano, P. Barrett | Enterer: | M. Carrano, T. Cleary |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-08-16 15:01:19 | Last modified: | 2022-10-18 15:11:10 |
| Access level: | the public | Released: | 2005-08-16 15:01:19 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 14177. | ETE | R. S. Lull. 1915. The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming. The American Journal of Science, series 4 40(238):319-348 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 14538 | C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/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] |
| 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] |
| 55599 | J. H. Ostrom and P. Wellnhofer. 1986. The Munich specimen of Triceratops with a revision of the genus. Zitteliana 14:111-158 [M. Carrano/M. Carrano] |