Where: Santa Cruz County, California (37.1° N, 122.0° W: paleocoordinates 35.8° N, 114.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Vaqueros Sandstone Member (San Lorenzo Formation), Chattian to Chattian (28.1 - 20.4 Ma)
• Above basalt flows with in Vaqueros Sandstone. Vaqueros Sandstone is up to 920 m thick conformably overlies the Rice Mudstone and overlain by the Lambert Shale. Zemorrian (Oligocene) and Saucesian (early Miocene) age.
• bed-level stratigraphic resolution
Environment/lithology: coastal; fine-grained, medium, gray sandstone
Size class: macrofossils
Reposited in the UMMP
Collection methods: quarrying,
• Also collections at USGS, Menlo Park
Primary reference: J. C. Clark. 1981. Stratigraphy, paleontology, and geology of the Central Santa Cruz Mountains, California Coast Ranges. United States Geological Survey Professional Paper 1168:1-51 [A. Miller/A. Hendy/R. McClees-Funinan]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 37517: authorized by Austin Hendy, entered by Austin Hendy on 16.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Echinoida indet. Troschel 1872 sea urchin | |
Gastropoda | |
Turritella inezana Conrad 1857 turret shell | |
"Astraea aff. morani" = Astraea (Pomaulax) morani
"Astraea aff. morani" = Astraea (Pomaulax) morani Loel and Corey 1932 snail | |
? Scaphander sp. Monfort 1810 snail | |
Bivalvia | |
"Chione latilaminosa" = Chione (Anomalocardia) latilaminosa, "Dosinia margaritana" = Dosinia (Dosinidia) margaritana
"Chione latilaminosa" = Chione (Anomalocardia) latilaminosa Anderson and Martin 1914 venus clam
"Dosinia margaritana" = Dosinia (Dosinidia) margaritana Wiedey 1928 venus clam | |
"Trachycardium vaquerosense" = Dallocardia vaquerosense
"Trachycardium vaquerosense" = Dallocardia vaquerosense Arnold 1908 cockle | |
"Crassatella granti" = Hybolophus granti
"Crassatella granti" = Hybolophus granti Wiedey 1928 clam | |
Macrochlamis magnolia Conrad 1857 scallop
Vertipecten cf. perrini Arnold 1906 scallop | |
? Anadara sp. Gray 1847 ark | |
Glycymeris sp. Da Costa 1778 clam | |
Thecostraca | |
Balanus sp. Da Costa 1778 barnacle |