South Oak Ridge area [Vaqueros Fm]: Early/Lower Miocene, California
collected by Corey

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Marginulina dubia
spelled with current rank as Cristellaria (Marginulina)
Globigerinidae
Globigerina sp. d'Orbigny 1826
Globothalamea - Rotaliida - Nonionidae
Nonion incisum
Globothalamea - Rotaliida - Discorbidae
Valvulineria casitasensis
Lituolida - Lituolidae
Gaudryina cf. triangularis
Cyclammina cf. incisa (Stache 1864)
Buliminidae
Buliminella curta Cushman 1925
Bulimina ovula
Virgulina bramlettrei
Nodosariata - Nodosariida - Nodosariidae
Robulus nikobarensis (Schwager 1866)
Robulus mayi Cushman and Parker 1931
Dentalina cf. pauperata (d'Orbigny 1846)
Lagena substriata (Williamson 1848)
Lagena sulcata Williamson 1848
Nodosariata - Vaginulinida - Lagenidae
Lagena clavata Millett 1901
recombined as Hyalinonetrion clavatum
Echinoidea - Clypeasteroida - Echinarachniidae
Scutella fairbanksi Arnold 1907
recombined as Kewia fairbanksi
Mammalia - Cetacea
Cetacea indet. Brisson 1762
Mammalia - Carnivora - Pinnipedia
Pinnipedia indet. Illiger 1811
Thecostraca - Balanomorpha - Balanidae
Balanus sp. Da Costa 1778
unclassified
Bryozoa indet. Ehrenberg 1831
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula diminutiva Loel and Corey 1932
Calyptraea inornata (Gabb 1869)
Calyptraea filosa (Gabb 1866)
Gastropoda - Naticidae
Polinices recluzianus (Deshayes 1839)
recombined as Glossaulax reclusiana
Gastropoda - Neogastropoda - Muricidae
Rapana vaquerosensis (Arnold 1908)
recombined as Califrapana vaquerosensis
Gastropoda - Neogastropoda - Olividae
Olivella pedroana (Conrad 1855)
recombined as Callianax pedroana
Gastropoda - Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806
Gastropoda - Turritellidae
Turritella inezana Conrad 1857
Gastropoda - Cerithiidae
Terebra santana Loel and Corey 1932
recombined as Clavocerithium santana
Gastropoda - Heterostropha - Acteonidae
Acteon sp. Montfort 1810
Bivalvia - Lucinida - Lucinidae
Lucina wattsi Loel and Corey 1932
Phacoides sanctaecrucis Arnold 1909
recombined as Miltha (Miltha) sanctaecrucis
Phacoides acutilineatus (Conrad 1849)
recombined as Lucinoma acutilineata
Bivalvia - Cardiida - Ungulinidae
Diplodonta harfordi Anderson 1905
recombined as Felaniella (Felaniella) harfordi
Diplodonta cf. orbella (Gould 1851)
Bivalvia - Cardiida - Veneridae
Dosinia cf. merriami Clark 1915
Chione temblorensis (Anderson 1905)
recombined as Chione (Chionopsis) temblorensis
Transennella cf. joaquinensis Anderson and Martin 1914
Clementia pertenuis (Gabb 1864)
original and current combination Dosinia pertenuis
Bivalvia - Cardiida - Mactridae
Mactra cf. sectoris Anderson and Martin 1914
recombined as Mactromeris sectoris
Bivalvia - Cardiida - Cardiidae
Cardium vaquerosensis (Arnold 1908)
recombined as Dallocardia vaquerosense
Bivalvia - Cardiida - Tellinidae
Macoma nasuta (Conrad 1837)
Macoma arctata (Conrad 1849)
recombined as Macoma (Psammacoma) arctata
Bivalvia - Arcida - Arcidae
Arca santaclarana Loel and Corey 1932
recombined as Scapharca (Cunearca) santaclarana
Bivalvia - Pectinida - Anomiidae
Anomia vaquerosensis Loel and Corey 1932
Bivalvia - Pectinida - Pectinidae
Pecten sespeensis Arnold 1906
recombined as Chlamys sespeensis
Pecten andersoni (Arnold 1906)
recombined as Pacipecten andersoni
Pecten magnolia Conrad 1857
recombined as Macrochlamis magnolia
Bivalvia - Ostreida - Gryphaeidae
Ostrea eldridgei Arnold 1907
recombined as Crenostrea eldridgei
Bivalvia - Ostreida - Ostreidae
Ostrea vaquerosensis Loel and Corey 1932
recombined as Crassostrea vaquerosensis
Bivalvia - Mytilida - Mytilidae
Modiolus ynezianus Arnold 1908
recombined as Modiolus (Modiolus) ynezianus
see common names

Geography
Country:United States State/province:California County:Ventura
Coordinates: 34.3° North, 118.8° West (view map)
Paleocoordinates:33.4° North, 112.6° West
Basis of coordinate:stated in text
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 - 15.98000 m.y. ago
Stratigraphy
Formation:Vaqueros
Stratigraphic resolution:group of beds
Stratigraphy comments: LITHOSTRATIGRAPHY: From the Vaqueros Fm, which overlies the the Sespe Fm (Eocene-Miocene). AGE: Early Miocene, presumably on the basis of molluscan and foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: From the Turritella inezana zone in the upper part of the Vaqueros Fm.
Lithology and environment
Primary lithology: argillaceous sandstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Massive argillaceous sandstones. LITHIFICATION: Unknown.
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 excludes:all microfossils
Collection methods:surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:UCMP
Collectors:Corey
Collection method comments: COLLECTOR: Corey. REPOSITORY: Not stated in text, but probably UCMP.
Taxonomic list comments:COVERAGE: Exhaustive for macrofossils; microfossils known to be present. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, but with species-resolution identifications.
Metadata
Database number:91374
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2009-09-16 18:29:45 Last modified:2013-11-25 13:37:23
Access level:the public Released:2009-09-16 18:29:45
Creative Commons license:CC BY
Reference information

Primary reference:
30746. J. A. Cushman and L. W. Leroy. 1938. A microfauna from the Vaqueros Formation, Lower Miocene, Simi Valley, Ventura County, California. Journal of Paleontology 12(2):117-126 [A. Hendy/A. Hendy]