CSUN 702, Simi Hills: Lutetian, California
collected by R. L. Squires 1983
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Carditida
- Carditidae
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Venericardia (Pacificor) aragonia
(Arnold and Hannibal 1914)
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| original and current combination Venericardia hornii aragonia | ||||||||||
| as Venericardia (Pacificor) aragonia joaquinensis | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Acanthocardia (Schedocardia) brewerii
(Gabb 1864)
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| recombined as Schedocardia brewerii | ||||||||||
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica (Stellaxis) cognata
(Gabb 1864)
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Gastropoda
- Neritidae
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Velates perversus
(Gmelin 1791)
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Vokes 1935 | |||||||||
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Gastropoda
- Seraphsidae
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Paraseraphs erraticus
(Cooper 1894)
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Gastropoda
- Ampullinidae
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Pachycrommium clarki
(Stewart 1927)
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Eocernina hannibali
(Dickerson 1914)
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Ventura |
| Coordinates: | 34.2° North, 118.8° West (view map) | ||||
| Paleocoordinates: | 35.0° North, 104.7° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 1420 feet | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Lutetian | ||
| Age range of interval: | 47.80000 - 41.20000 m.y. ago |
Stratigraphy
| Formation: | Llajas |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Environment: | coastal indet. |
| Glacial or sequence phase: | transgressive |
| Geology comments: Interfingering coastal alluvial-fan facies and shallow-marine (transgressive) facies. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils | ||
| Collection methods: | bulk,field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | LACM | ||
| Collectors: | R. L. Squires | Collection dates: | 1983 |
| Collection method comments: Repository: Formerly California State University Northridge (CSUN) | |||
Metadata
| Also known as: | UCMP 7193; UCLA 7070 | ||
| Database number: | 207187 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2019-12-31 01:53:53 | Last modified: | 2019-12-31 02:02:14 |
| Access level: | the public | Released: | 2019-12-31 01:53:53 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 59877. | R. L. Squires. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 350:1-76 [M. Clapham/M. Clapham] |
Secondary references:
| 75603 | H. E. Vokes. 1935. The genus Velates in the Eocene of California. University of California Publications Bulletin of the Department of Geological Sciences 23(12):381-390 [J. Marcot/J. Marcot] |