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 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 71216: authorized by Austin Hendy, entered by Austin Hendy on 21.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Turritella inezana Conrad 1857 turret shell | |
Crepidula cf. praerupta Conrad 1849 slipper shell | |
"Polinices recluzianus" = Glossaulax reclusiana
"Polinices recluzianus" = Glossaulax reclusiana Deshayes 1839 moon snail SUBSPECIES: P. recluzianus andersoni
| |
Bivalvia | |
"Pecten (Lyropecten) miguelensis" = Lyropecten miguelensis
"Pecten (Lyropecten) miguelensis" = Lyropecten miguelensis Arnold 1906 scallop SUBSPECIES: P. (L.) miguelensis submiguelensis
| |
? Donax sp. Linnaeus 1758 clam | |
Diplodonta cf. orbella Gould 1851 clam | |
Dosinia (Dosinella) merriami, Dosinia (Dosinidia) margaritana, Tivela (Pachydesma) inezana, Clementia (Egesta) pertenuis
Dosinia (Dosinella) merriami Clark 1915 venus clam
Dosinia (Dosinidia) margaritana Wiedey 1928 venus clam SUBSPECIES: D. (Dosinidia) margaritana projecta
Tivela (Pachydesma) inezana Conrad 1856 venus clam
Clementia (Egesta) pertenuis Gabb 1864 venus clam | |
"Phacoides (Lucinoma) acutilineatus" = Lucinoma acutilineata, "Phacoides (Here) richthofeni" = Here excavata
"Phacoides (Lucinoma) acutilineatus" = Lucinoma acutilineata Conrad 1849 clam
"Phacoides (Here) richthofeni" = Here excavata Carpenter 1857 clam | |
Thecostraca | |
Balanus sp. Da Costa 1778 barnacle |