Panoche Hills canyon: Maastrichtian, California
collected by Chad M. Staebler 1980
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Mosasauridae
|
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|
Plesiotylosaurus crassidens
Camp 1942
|
1 individual | |||||||||
| UCMP 137249 | ||||||||||
|
Prognathodon cf. waiparaensis
Welles and Gregg 1971
|
Lindgren and Schulp 2010 | 1 specimen | ||||||||
| UCMP 152663 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Fresno |
| Coordinates: | 36.7° North, 120.8° West (view map) | ||||
| Paleocoordinates: | 42.8° North, 96.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Geological group: | Great Valley | Formation: | Moreno | Member: | Tierra Loma Shale |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "late early to early late Maastrichtian age, as established by studies of foraminifers, gastropods, and ammonites" | |||||
Lithology and environment
| Primary lithology: | gypsiferous,gray "shale" |
| Includes fossils? | Y |
| Lithology description: "dark-colored, bituminous and highly gypsiferous shales" | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | rare |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection excludes: | some macrofossils | ||
| Collection methods: | survey of museum collection | ||
| Collection size: | 2 individuals | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | UCMP | ||
| Collectors: | Chad M. Staebler | Collection dates: | 1980 |
Metadata
| Database number: | 103992 | ||
| Authorizer: | M. Carrano | Enterer: | H. Street |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-02-04 08:42:57 | Last modified: | 2021-10-13 09:52:23 |
| Access level: | the public | Released: | 2011-02-04 08:42:57 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 35028. | J. Lindgren. 2009. Cranial osteology of the giant mosasaur Plesiotylosaurus (Squamata, Mosasauridae). Journal of Paleontology 83(3):448-456 [M. Carrano/H. Street] |
Secondary references:
| 35665 | ETE | J. Lindgren and A. S. Schulp. 2010. New material of Prognathodon (Squamata: Mosasauridae), and the mosasaur assemblage of the Maastrichtian of California, USA. Journal of Vertebrate Paleontology 30(5):1632-1636 [M. Carrano/H. Street] |