Where: Orange County, California (33.5° N, 117.8° W: paleocoordinates 32.6° N, 111.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Vaqueros Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• 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 the upper part of the Vaqueros Fm.
• bed-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, silty sandstone
Size class: macrofossils
Reposited in the UCMP
Collection methods: surface (in situ),
• COLLECTOR: W. Loel, W. H. Corey, and A. M. Strong (c. late 1910-20's). REPOSITORY: University of California, Berkeley (UCNMP).
Primary reference: 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]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 71222: authorized by Austin Hendy, entered by Austin Hendy on 21.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Calyptraea filosa Gabb 1866 slipper shell | |
Potamides sespeensis Loel and Corey 1932 horn snail | |
"Polinices recluzianus" = Glossaulax reclusiana
"Polinices recluzianus" = Glossaulax reclusiana Deshayes 1839 moon snail SUBSPECIES: P. recluzianus andersoni
| |
"Rapana vaquerosensis" = Califrapana vaquerosensis
"Rapana vaquerosensis" = Califrapana vaquerosensis Arnold 1908 murex snail | |
Scaphander jugularis Conrad 1855 snail | |
Bivalvia | |
"Chione cf. richthofeni" = Chione (Chionopsis) richthofeni, Clementia (Egesta) pertenuis
"Chione cf. richthofeni" = Chione (Chionopsis) richthofeni Hertlein and Jordan 1927 venus clam | |
"Cardium (Trachycardium) vaquerosensis" = Dallocardia vaquerosense
"Cardium (Trachycardium) vaquerosensis" = Dallocardia vaquerosense Arnold 1908 cockle | |
"Pecten (Lyropecten) miguelensis" = Lyropecten miguelensis
"Pecten (Lyropecten) miguelensis" = Lyropecten miguelensis Arnold 1906 scallop COMMENTS: Includes P. (L.) miguelensis submiguelensis
| |
Anomia vaquerosensis n. sp.
Anomia vaquerosensis n. sp. Loel and Corey 1932 jingle | |
Pteria hertleini Wiedey 1928 pearl oyster | |
"Ostrea eldridgei" = Crenostrea eldridgei
"Ostrea eldridgei" = Crenostrea eldridgei Arnold 1907 oyster | |
"Arca (Anadara) santana n. sp." = Anadara santana
"Arca (Anadara) santana n. sp." = Anadara santana Loel and Corey 1932 ark | |
Thecostraca | |
Balanus sp. Da Costa 1778 barnacle |