UCR loc. 8383, Pinyon Ridge north of Sycamore Flat Campground: Middle Paleocene, California
collected by M. A. Kooser
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Gastropoda
- Heterostropha
- Ringiculidae
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Tornatellaea pinguis
(Gabb 1864)
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| recombined as Ringicula (Ringicula) pinguis | |||||||
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Gastropoda
- Turritellidae
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Mesalia martinezensis
(Gabb 1869)
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Bivalvia
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Bivalvia indet.
Linnaeus 1758
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Bivalvia
- Arcida
- Cucullaeidae
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Cucullaria cf. morani
(Waring 1914)
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| original and current combination Cucullaea morani | |||||||
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Cucullaea mathewsoni
(Gabb 1864)
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| original and current combination Cucullaea mathewsonii | |||||||
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Bivalvia
- Pectinida
- Limidae
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cf. Lima sp.
Bruguière 1797
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Bivalvia
- Nuculida
- Nuculidae
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Acila sp.
Adams and Adams 1858
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Rhynchonellata
- Terebratulida
- Kingenidae
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Kingena ? simiensis
Waring 1917
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Anthozoa
- Scleractinia
- Guyniidae
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Trochocyathus zitteli
Vaughan 1900
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| recombined as Palaeopsammia zitteli | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Los Angeles |
| Coordinates: | 34.4° North, 117.8° West (view map) | ||||
| Paleocoordinates: | 38.5° North, 97.4° West | ||||
| Basis of coordinate: | stated in text |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Selandian | 10 m.y. bin: | Cenozoic 1 |
| Key time interval: | Middle Paleocene | ||
| Age range of interval: | 61.60000 - 59.20000 m.y. ago |
Stratigraphy
| Formation: | San Francisquito | ||||
| Stratigraphy comments: About 120 m above the basal unconformity between San Francisquito Formation and basement. Stratigraphic Unit: Ts2 |
Lithology and environment
| Primary lithology: | pebbly,intraclastic mudstone |
| Secondary lithology: | sandstone |
| Includes fossils? | Y |
| Lithology description: Description: Fossils predominantly found in clasts within pebbly mudstone interbedded with thin-bedded mudstone and sandstone. Fossiliferous clasts include armored mud balls, limestone, sandy-limestone, limy-sandstone, and petrified wood. Fossils aso found in limy shale concretions. Unit contains large blocks, boulders and cobbles of basement rock. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Collectors: | M. A. Kooser |
Metadata
| Database number: | 192844 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2018-04-20 13:55:24 | Last modified: | 2022-03-30 14:58:37 |
| Access level: | the public | Released: | 2018-04-20 13:55:24 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 81057. | M. A. Kooser. 1980. Stratigraphy and Sedimentology of the San Francisquito Formation, Transverse Ranges, California. 1-201 [J. Marcot/J. Marcot] |