Capay Eocene Corals, CA, I: Ypresian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Scleractinia
- Flabellidae
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Flabellum clarki n. sp.
Bentson 1943
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16 individuals | ||||||
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Anthozoa
- Scleractinia
- Caryophylliidae
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Platytrochus merriami
(Nomland 1916)
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9 individuals | ||||||
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Trochocyathus imperialis
Nomland 1916
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30 individuals | ||||||
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Trochocyathus nomlandi n. sp.
Bentson 1943
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82 individuals | ||||||
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Trochocyathus crooki
Merriam and Turner 1937
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216 individuals | ||||||
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Trochocyathus (Aplocyathus) durhami n. sp.
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26 individuals | ||||||
| original and current combination Aplocyathus | |||||||
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Anthozoa
- Scleractinia
- Micrabaciidae
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Stephanophyllia californica
Nomland 1916
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1 individual | ||||||
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Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia variabilis
Nomland 1916
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41 individuals | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Yolo |
| Coordinates: | 38.5° North, 121.6° West (view map) | ||||
| Paleocoordinates: | 42.4° North, 103.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Ypresian | ||
| Age range of interval: | 56.00000 - 47.80000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The invertebrate faunas from these localities have been assigned to the Capay stage of the Californian marine Eocene by Merriam and Turner (1937) and are correlative with one another and with faunas from the Cerros shale member of the Lodo formation, north of Coalinga, and from glauconitic shales and sandstones at Marysville Buttes. | |||||
Lithology and environment
| Primary lithology: | gray "shale" |
| Lithology description: ..gray shales exposed in a canyon | |
| Environment: | offshore indet. |
| Geology comments: total number of corals is almost twice the total number of molluscs
prolific abundance of Trochocyathus indicates tropical waters and a depth of at least 366 meters | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Abundance in sediment: | abundant |
Collection methods and comments
| Collection methods: | field collection |
| Collection size: | 421 individuals |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | UCMP |
Metadata
| Database number: | 78721 | ||
| Authorizer: | W. Kiessling | Enterer: | A. Girndt | Research group: | marine invertebrate |
| Created: | 2008-02-15 04:30:14 | Last modified: | 2008-02-15 06:30:14 |
| Access level: | authorizer only | Released: | 2010-01-08 10:39:56 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 26462. | H. Bentson. 1943. Eocene (Capay) corals from California. Journal of Paleontology 17(3):289-297 [W. Kiessling/A. Girndt] |