Middle Park (USNM 218): Kimmeridgian - Tithonian, Colorado
collected by F. V. Hayden 1869
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Poicilopleuron valens n. sp.
Leidy 1870
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1 specimen | |||||||||
| synonym of Allosaurus fragilis | ||||||||||
| USNM 218 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Grand |
| Coordinates: | 40.1° North, 105.9° West (view map) | ||||
| Paleocoordinates: | 35.7° North, 52.6° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| Key time interval: | Kimmeridgian - Tithonian | ||
| Age range of interval: | 154.80000 - 145.00000 m.y. ago |
Stratigraphy
| Formation: | Morrison |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | pond |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | poor |
| Disassociated minor elements: | all |
| Fragmentation: | frequent |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | surface (float),field collection,survey of museum collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | F. V. Hayden | Collection dates: | 1869 |
Metadata
| Also known as: | Antrodemus type site | ||
| Database number: | 52872 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-08-25 07:30:40 | Last modified: | 2023-08-23 10:42:17 |
| Access level: | the public | Released: | 2005-08-25 07:30:40 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 30725. | ETE | J. Leidy. 1870. [Remarks on Poikilopleuron valens, Clidastes intermedius, Macrosaurus proriger, Baptemys wyomingensis, and Emys stevensonianus]. Proceedings of the Academy of Natural Sciences of Philadelphia 22(1):3-5 [M. Carrano/M. Carrano/M. Uhen] |
Secondary references:
| 81841 | B. H. Breithaupt. 1994. The first dinosaur discovered in Wyoming. In G. E. Nelson (ed.), Wyoming Geological Association Forty-Fourth Annual Field Conference. Wyoming Geological Association Guidebook 44:15-23 [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] | |
| 15179 | ETE | J. R. Foster. 2003. Paleoecological analysis of the vertebrate fauna of the Morrison Formation (Upper Jurassic), Rocky Mountain region, U.S.A. New Mexico Museum of Natural History and Science Bulletin 23:1-95 [M. Carrano/M. Carrano] |
| 10608 | ETE | C. W. Gilmore. 1920. Osteology of the carnivorous Dinosauria in the United States National Museum, with special reference to the genera Antrodemus (Allosaurus) and Ceratosaurus. Bulletin of the United States National Museum 110:1-154 [M. Carrano/M. Carrano/M. Carrano] |
| 11982 | J. Leidy. 1873. Part I. Contributions to the extinct vertebrate fauna of the western territories. In F. V. Hayden (ed.), Report of the United States Geological Survey of the Territories 1:1-358 [M. Uhen/M. Uhen/M. Carrano] |