Shoup Ranch Gulch (CAS 63659): Late Aptian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Desmoceratidae
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| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Shasta |
| Coordinates: | 40.5° North, 122.6° West (view map) | ||||
| Paleocoordinates: | 46.3° North, 64.8° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| Key time interval: | Late Aptian | Ammonoid zone: | Eotetragonites wintunius |
| Age range of interval: | 119.57 - 113.2 m.y. ago |
Stratigraphy
| Formation: | Budden Canyon | Member: | Chickabilly | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "upper Chickabilly Member of the Budden Canyon Formation... Late Aptian Eotetragonites wintunius Zone" | |||||
Lithology and environment
| Primary lithology: | bioturbation,nodular,gray lithified mudstone |
| Lithology description: specimens are from "limestone nodules, commonly with abundant fragments of wood, many burrowed by teredinid bivalves... The predominant lithology is a dark-gray, massive mudstone that locally shows evidence of intensive bioturbation" | |
| Environment: | prodelta |
| Geology comments: "deep, quiet-water environment, several kilometers offshore and near a large deltaic environment" | |
Taphonomy
| Modes of preservation: | body,concretion |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | CAS |
Metadata
| Also known as: | Bee Creek | ||
| Database number: | 90662 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | vertebrate |
| Created: | 2009-08-12 08:56:41 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2009-08-12 08:56:41 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 30506. | D. J. Long, M. A. Murphy, and P. U. Rodda. 1993. A New World occurrence of Notidanodon lanceolatus (Chondrichthyes, Hexanchidae) and comments on hexanchid shark evolution. Journal of Paleontology 67(4):655-659 [J. Alroy/J. Alroy] |