CSUN Loc. 984, Lockwood Valley: Lutetian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Polychaeta
- Sabellida
- Serpulidae
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Rotularia (Rotularia) tejonensis
Arnold 1909
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1 specimen | |||||||||
| recombined as Rotularia (Rotularia) tejonense | ||||||||||
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Gastropoda
- Ampullinidae
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Pachycrommium clarki
(Stewart 1927)
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8 specimens | |||||||||
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Eocernina hannibali
(Dickerson 1914)
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4 specimens | |||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea diegoana
(Conrad 1855)
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1 specimen | |||||||||
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Gastropoda
- Turritellidae
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Turritella buwaldana
Dickerson 1916
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1 specimen | |||||||||
| ? in locality information | ||||||||||
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Turritella andersoni
Dickerson 1916
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4 specimens | |||||||||
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Turritella uvasana
Conrad 1855
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1 specimen | |||||||||
| ? in locality information; Turritella uvasana hendoni (s.l.) | ||||||||||
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Gastropoda
- Cymatiidae
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Olequahia domenginica
(Vokes 1939)
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1 specimen | |||||||||
| original and current combination Ranella domenginica | ||||||||||
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Gastropoda
- Cypraeidae
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Cypraea sp.
Linnaeus 1758
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1 specimen | |||||||||
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= Subepona leahae
Groves and Squires 2023
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Groves and Squires 2023 | |||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Clavilithes tabulatus
(Dickerson 1913)
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1 specimen | |||||||||
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Gastropoda
- Neogastropoda
- Clavatulidae
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Cryptoconus cooperi
(Dickerson 1916)
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1 specimen | |||||||||
| recombined as Turricula cooperi | ||||||||||
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Gastropoda
- Strombidae
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Ectinochilus macilentus
(White 1889)
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10 specimens | |||||||||
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Gastropoda
- Xenophoridae
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Xenophora stocki
Dickerson 1916
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1 specimen | |||||||||
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica cognata
Gabb 1864
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1 specimen | |||||||||
| recombined as Architectonica (Stellaxis) cognata | ||||||||||
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Gastropoda
- Opisthobranchia
- Retusidae
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Cylichnina tantilla
(Anderson and Hanna 1925)
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7 specimens | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Pitar joaquinensis
Vokes 1939
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1 specimen | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Ventura |
| Coordinates: | 34.8° North, 119.2° West (view map) | ||||
| Paleocoordinates: | 35.5° North, 105.1° West | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
| *Period: | Tertiary | *Local age/stage: | Capay |
| Key time interval: | Lutetian | ||
| Age range of interval: | 47.80000 - 41.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Juncal |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lag poorly lithified argillaceous siltstone |
| Secondary lithology: | poorly lithified sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: the juncal formation in northern lockwood valley is 605 m thick and consists primarily of muddy siltstone with minor amounts of sandstone and scattered lenses with fossils. lenses are fine to coarse sandstone representing storm lag deposits. | |
| Environment: | transition zone/lower shoreface |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | bulk,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | LACM |
| Collection method comments: Samples were taken for microfossil (nannos and planktonic forams)collections, but all were barren. | |
Metadata
| Also known as: | LACMIP Loc. 16178 | ||
| Database number: | 5542 | ||
| Authorizer: | A. Miller, J. Marcot | Enterer: | K. Layou, J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 1999-10-12 07:38:31 | Last modified: | 2023-11-19 19:15:22 |
| Access level: | the public | Released: | 1999-10-12 07:38:31 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 329. | R. L. Squires. 1988. Eocene Macropaleontology of Northern Lockwood Valley, Ventura County, California. Contributions in Science (Natural History Museum of Los Angeles County) 398:1-23 [A. Miller/K. Layou] |
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] |