Chico area north of the Simi fault (Locality 1 of Waring 1917): Late/Upper Cretaceous, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites chicoensis
Trask 1856
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Gastropoda
- Naticidae
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Gyrodes canadensis
Whiteaves 1903
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| recombined as Gyrodes (Sohlella) canadensis | |||||||
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Gyrodes compressus n. sp.
Waring 1917
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| recombined as Euspira compressa | |||||||
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Gastropoda
- Neogastropoda
- Perissityidae
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Perissolax brevirostris
Gabb 1864
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| recombined as Perissitys brevirostris | |||||||
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Gastropoda
- Neogastropoda
- Volutidae
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Rostellites gabbi
White 1903
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= Volutoderma blakei
Saul and Squires 2008
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Popenoe and Saul 1987 | ||||||
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Gastropoda
- Aporrhaidae
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Anchura sp.
Conrad 1860
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Bivalvia
- Arcida
- Glycymerididae
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Glycimeris veatchii
(Gabb 1864)
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| recombined as Glycymerita veatchii | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Los Angeles |
| Coordinates: | 34.2° North, 118.7° West (view map) | ||||
| Paleocoordinates: | 38.7° North, 85.5° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| 10 m.y. bin: | Cretaceous 5-8 | ||
| Key time interval: | Late/Upper Cretaceous | ||
| Age range of interval: | 100.50000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Chatsworth | ||||
| Stratigraphy comments: Originally described as "Chico," but now mapped as Chatsworth (Yerkes and Showalter 1993) |
Lithology and environment
| Primary lithology: | sandstone |
| Secondary lithology: | "shale" |
| Lithology description: "The Chico strata of the Calabasas sheet are lithologically like those of the northern Coast Ranges, and contain a similar fauna. They consist of a lower sandstone and an upper shale member, both of upper Chico age." | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | CAS |
| Collection method comments: Leland Stanford Junior University Paleontology Collections, eventually transferred to the California Academy of Sciences | |
Metadata
| Database number: | 193032 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2018-05-04 14:08:44 | Last modified: | 2019-04-30 13:45:24 |
| Access level: | the public | Released: | 2018-05-04 14:08:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27071. | C. A. Waring. 1917. Stratigraphic and faunal relations of the Martinez to the Chico and Tejon of Southern California. Proceedings of the California Academy of Sciences 7(4):41-124 [L. Villier/L. Villier] |
Secondary references:
| 24379 | 1% 7220 | W. P. Popenoe and L. R. Saul. 1987. Evolution and classification of the Late Cretaceous-Early Tertiary gastropod Perissitys. Contributions in Science 380:1-37 [W. Kiessling/U. Merkel] |