UCMP loc. A-529, San Joaquin Hills: Early/Lower Miocene, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca
- Balanomorpha
- Balanidae
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Balanus sp.
Da Costa 1778
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Bivalvia
- Pectinida
- Pectinidae
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Pecten (Lyropecten) miguelensis
Arnold 1906
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recombined as Lyropecten miguelensis | ||||||||||
SUBSPECIES: P. (L.) miguelensis submiguelensis | ||||||||||
Bivalvia
- Cardiida
- Donacidae
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? Donax sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Veneridae
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Dosinia (Dosinidia) margaritana
(Wiedey 1928)
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SUBSPECIES: D. (Dosinidia) margaritana projecta | ||||||||||
Dosinia (Dosinella) merriami
Clark 1915
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Clementia (Egesta) pertenuis
(Gabb 1864)
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original and current combination Dosinia pertenuis | ||||||||||
Tivela (Pachydesma) inezana
(Conrad 1856)
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta cf. orbella
(Gould 1851)
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Bivalvia
- Lucinida
- Lucinidae
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Phacoides (Here) richthofeni
(Gabb 1866)
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synonym of Here excavata | ||||||||||
Phacoides (Lucinoma) acutilineatus
(Conrad 1849)
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recombined as Lucinoma acutilineata | ||||||||||
Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula cf. praerupta
Conrad 1849
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Gastropoda
- Naticidae
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Polinices recluzianus
(Deshayes 1839)
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recombined as Glossaulax reclusiana | ||||||||||
SUBSPECIES: P. recluzianus andersoni | ||||||||||
Gastropoda
- Turritellidae
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Turritella inezana
Conrad 1857
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see common names |
Geography
Country: | United States | State/province: | California | County: | Orange |
Coordinates: | 33.5° North, 117.8° West (view map) | ||||
Paleocoordinates: | 32.6° North, 111.5° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
10 m.y. bin: | Cenozoic 5 | ||
Key time interval: | Early/Lower Miocene | ||
Age range of interval: | 23.03000 - 15.97000 m.y. ago |
Stratigraphy
Formation: | Vaqueros | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Vaqueros Fm, which unconformably overlies the Eocene Tempetate/Martinez Fm, and is overlain by the Temblor Fm (Middle Miocene). THICKNESS: From bed within unit which locally reaches 500 ft in thickness. AGE: Early Miocene on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: From upper part of the Vaqueros Fm. |
Lithology and environment
Primary lithology: | poorly lithified silty sandstone |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Light colored sandstones and silty sandstones. LITHIFICATION: Poorly lithified on the basis of facies description of adjacent strata and age. | |
Environment: | coastal indet. |
Geology comments: ENVIRONMENT: From rather shallow siliciclastic marine facies on the basis of faunal composition. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | surface (in situ),field collection |
Reason for describing collection: | biostratigraphic analysis |
Museum repositories: | UCMP |
Collection method comments: COLLECTOR: W. Loel, W. H. Corey, and A. M. Strong (c. late 1910-20's). REPOSITORY: University of California, Berkeley (UCNMP). | |
Taxonomic list comments:COVERAGE: Exhaustive for bivalvia and gastropoda, with annelida, bryozoa, crustacea, and pisces also listed. NOMENCLATURE: Antiquated nomenclature, but from authoritative publication with consistent use of species and subgenus-level assignments. |
Metadata
Database number: | 71216 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | J. Marcot | Research group: | marine invertebrate |
Created: | 2007-04-21 12:24:38 | Last modified: | 2021-07-31 14:24:56 |
Access level: | the public | Released: | 2007-04-21 12:24:38 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
23850. | W. Loel and W. H. Corey. 1932. The Vaqueros Formation, Lower Miocene of California (Part 1). University of California Publications, Bulletin of the Department of Geological Sciences 22(3):31-410 [A. Hendy/A. Hendy] |