List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Cardiida
- Veneridae
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Callocardia (Nitidavenus) tejonensis
(Waring 1914)
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| recombined as Nitidavenus tejonensis | |||||||
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Gastropoda
- Opisthobranchia
- Retusidae
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Cylichnina tantilla
(Anderson and Hanna 1925)
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica (Stellaxis) cognata
(Gabb 1864)
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Gastropoda
- Turritellidae
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Turritella buwaldana
Dickerson 1916
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Gastropoda
- Eocypraeidae
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Eocypraea judithsmithae n. sp.
Groves and Squires 2023
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Groves and Squires 2023 | ||||||
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Gastropoda
- Neogastropoda
- Turridae
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Surculites mathewsonii
(Gabb 1864)
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Gastropoda
- Neogastropoda
- Clathurellidae
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Domenginella claytonensis
(Gabb 1864)
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Gastropoda
- Neogastropoda
- Volutidae
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Lyria andersoni
Waring 1917
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Gastropoda
- Strombidae
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Ectinochilus (Macilentos) macilentus
(White 1889)
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Gastropoda
- Cassidae
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Phalium (Semicassis) tuberculiformis
(Gabb 1864)
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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: | Los Angeles |
| Coordinates: | 34.3° North, 118.6° West (view map) | ||||
| Paleocoordinates: | 36.2° North, 102.9° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 2035 feet | ||||
| Geographic resolution: | small collection |
Stratigraphy
| Formation: | Llajas |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | bioturbation sandstone |
| Includes fossils? | Y |
| Lithology description: sandstone. | |
| Environment: | offshore |
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 |
| Taxonomic list comments:New species only. | |
Metadata
| Also known as: | LAMCIP 40372 | ||
| Database number: | 200143 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2019-03-22 15:37:14 | Last modified: | 2023-11-19 19:33:04 |
| Access level: | the public | Released: | 2019-03-22 15:37:14 |
| 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:
| 86508 | L. T. Groves and R. L. Squires. 2023. Revision of northeast Pacific Paleogene cypraeoidean gastropods (Mollusca), including recognition of three new species: Implications for paleobiogeographic distribution and faunal turnover. PaleoBios 40(10):1-52 [J. Marcot/J. Marcot] |