Where: Ventura County, California (34.3° N, 118.8° W)
• Paleocoordinates: 37.6° N, 109.6° W (Wright 2013)
• coordinate stated in text
• outcrop-level geographic resolution
When: Vaqueros Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• 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.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; argillaceous sandstone
Size class: macrofossils
Collected by Corey; reposited in the UCMP
Collection methods: surface (in situ),
• COLLECTOR: Corey. REPOSITORY: Not stated in text, but probably UCMP.
Primary reference: 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]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 91374: authorized by Austin Hendy, entered by Austin Hendy on 16.09.2009
Creative Commons license: CC0 (CC0)
Taxonomic list
| Echinoidea | |
| "Scutella  fairbanksi" = Kewia fairbanksi
 "Scutella  fairbanksi" = Kewia fairbanksi Arnold 1907 sand dollar | |
| Mammalia | |
| Pinnipedia  indet.  pinniped | |
| Cetacea  indet. Brisson 1762 whale | |
| Bryozoa | |
| Bryozoa  indet. Ehrenberg 1831  | |
| Gastropoda | |
| Acteon  sp. Montfort 1810 snail | |
| "Terebra  santana" = Clavocerithium santana
 "Terebra  santana" = Clavocerithium santana Loel and Corey 1932 cerith snail | |
| Turritella  inezana Conrad 1857 turret shell | |
| Crepidula  diminutiva Loel and Corey 1932 slipper shell 
Calyptraea  filosa Gabb 1866 Chinese hat snail 
Calyptraea  inornata Gabb 1869 Chinese hat snail | |
| "Rapana  vaquerosensis" = Califrapana vaquerosensis
 "Rapana  vaquerosensis" = Califrapana vaquerosensis Arnold 1908 murex snail | |
| "Olivella  pedroana" = Callianax pedroana
 "Olivella  pedroana" = Callianax pedroana Conrad 1855 San Pedro dwarf olive | |
| Nassarius  sp. Duméril 1806 snail | |
| "Polinices  recluzianus" = Glossaulax reclusiana
 "Polinices  recluzianus" = Glossaulax reclusiana Deshayes 1839 Recluz's moon snail | |
| Bivalvia | |
| Dosinia  cf. merriami, "Chione  temblorensis" = Chione (Chionopsis) temblorensis, "Clementia  pertenuis" = Clementia (Egesta) pertenuis, Transennella  cf. joaquinensis
 Dosinia  cf. merriami Clark 1915 venus clam 
"Chione  temblorensis" = Chione (Chionopsis) temblorensis Anderson 1905 venus clam 
"Clementia  pertenuis" = Clementia (Egesta) pertenuis Gabb 1864 venus clam 
Transennella  cf. joaquinensis Anderson and Martin 1914 venus clam | |
| Diplodonta  cf. orbella, "Diplodonta  harfordi" = Felaniella (Felaniella) harfordi
 Diplodonta  cf. orbella Gould 1851 orb diplodon 
"Diplodonta  harfordi" = Felaniella (Felaniella) harfordi Anderson 1905 clam | |
| "Mactra  cf. sectoris" = Mactromeris sectoris
 "Mactra  cf. sectoris" = Mactromeris sectoris Anderson and Martin 1914 clam | |
| "Cardium  vaquerosensis" = Dallocardia vaquerosense
 "Cardium  vaquerosensis" = Dallocardia vaquerosense Arnold 1908 cockle | |
| "Macoma  arctata" = Macoma (Psammacoma) arctata, Macoma  nasuta
 "Macoma  arctata" = Macoma (Psammacoma) arctata Conrad 1849 tellin clam 
Macoma  nasuta Conrad 1837 bent-nose clam | |
| Lucina  wattsi, "Phacoides  sanctaecrucis" = Miltha (Miltha) sanctaecrucis, "Phacoides  acutilineatus" = Lucinoma acutilineata
 Lucina  wattsi Loel and Corey 1932 clam 
"Phacoides  sanctaecrucis" = Miltha (Miltha) sanctaecrucis Arnold 1909 clam 
"Phacoides  acutilineatus" = Lucinoma acutilineata Conrad 1849 clam | |
| "Modiolus  ynezianus" = Modiolus (Modiolus) ynezianus
 "Modiolus  ynezianus" = Modiolus (Modiolus) ynezianus Arnold 1908 horsemussel | |
| "Pecten  andersoni" = Pacipecten andersoni, "Pecten  sespeensis" = Chlamys sespeensis, "Pecten  magnolia" = Macrochlamis magnolia
 "Pecten  andersoni" = Pacipecten andersoni Arnold 1906 scallop 
"Pecten  sespeensis" = Chlamys sespeensis Arnold 1906 scallop 
"Pecten  magnolia" = Macrochlamis magnolia Conrad 1857 scallop | |
| Anomia  vaquerosensis Loel and Corey 1932 jingle | |
| "Ostrea  eldridgei" = Crenostrea eldridgei
 "Ostrea  eldridgei" = Crenostrea eldridgei Arnold 1907 oyster | |
| "Ostrea  vaquerosensis" = Crassostrea vaquerosensis
 "Ostrea  vaquerosensis" = Crassostrea vaquerosensis Loel and Corey 1932 oyster | |
| "Arca  santaclarana" = Scapharca (Cunearca) santaclarana
 "Arca  santaclarana" = Scapharca (Cunearca) santaclarana Loel and Corey 1932 ark | |
| Thecostraca | |
| Balanus  sp. Da Costa 1778 barnacle | |
| Foraminifera | |
| "Marginulina  dubia" = Cristellaria (Marginulina)
 "Marginulina  dubia" = Cristellaria (Marginulina)   | |
| Globothalamea | |
| Foraminifera | |
| 
Cyclammina  cf. incisa Stache 1864  | |
| Globigerina  sp. d'Orbigny 1826  | |
| Nodosariata | |
| "Lagena  clavata" = Hyalinonetrion clavatum
 "Lagena  clavata" = Hyalinonetrion clavatum Millett 1901  | |
| Dentalina  cf. pauperata d'Orbigny 1846  
Lagena  sulcata Williamson 1848  
Lagena  substriata Williamson 1848  
Robulus  mayi Cushman and Parker 1931  
Robulus  nikobarensis Schwager 1866  | |