Purple Shale Beds, UCMP V-5714: Late/Upper Maastrichtian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Leidyosuchus sternbergi
(Gilmore 1910)
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| recombined as Borealosuchus sternbergii | ||||||||||
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cf. Dryptosaurus sp.
Marsh 1877
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Reptilia
- Testudines
- Trionychidae
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Trionychidae sp.
Gray 1825
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 72913 | ||||||||||
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Aspideretes beecheri
Hay 1904
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| recombined as Trionyx beecheri | ||||||||||
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Reptilia
- Testudines
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Helopanoplia sp.
Hay 1908
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173376 | ||||||||||
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus occidentalis
(Leidy 1856)
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| original and current combination Lepidotus occidentalis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Niobrara |
| Coordinates: | 43.1° North, 104.6° West (view map) | ||||
| Paleocoordinates: | 49.5° North, 79.5° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
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: | group of beds |
Lithology and environment
| Primary lithology: | gray,red,blue "shale" |
| Includes fossils? | Y |
| Lithology description: "a series of gray, red, and purple banded shales" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | random |
| Articulated whole bodies: | none |
| Associated major elements: | none |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | surface (float),mechanical,sieve,field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | UCMP |
Metadata
| Database number: | 57159 | ||
| Authorizer: | M. Carrano, R. Benson | Enterer: | K. Maguire, R. Benson |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2005-12-07 09:45:19 | Last modified: | 2022-02-03 07:53:06 |
| Access level: | the public | Released: | 2005-12-07 09:45:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 803. | R. Estes. 1964. Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming. University of California Publications in Geological Sciences 49:1-187 [J. Alroy/M. Sommers/M. Carrano] |
Secondary references:
| 42536 | P. A. Holroyd and J. H. Hutchison. 2002. Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component. Geological Society of America Special Paper 361:177-190 [R. Benson/R. Benson] |