USGS Cenozoic M5788 Rancho San Emigdio (Eocene of the United States)

Also known as UCMP IP8896

Where: Kern County, California (35.0° N, 119.0° W: paleocoordinates 35.2° N, 105.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: San Emigdio Formation, Middle Eocene (48.6 - 37.2 Ma)

• Late Eocene, Refugian.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by Nilsen, T. H. and Dibblee, T. W. in 1972

Primary reference: T. H. Nilsen. 1987. Stratigraphy and sedimentology of the Eocene Tejon Formation, western Tehachapi and San Emigdio mountains, California. United States Geological Survey Professional Paper 1268:1-110 [A. Miller/A. Hendy/R. McClees-Funinan]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 194587: authorized by Patricia Holroyd, entered by Susan Tremblay on 22.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Neogastropoda - Buccinidae
Siphonalia merriami Wagner and Schilling 1923 true whelk
 Sorbeoconcha - Bursidae
Olequahia lorenzana Wagner and Schilling 1923 frog shell
 Sorbeoconcha - Naticidae
? Naticidae indet. Guilding 1834 moon snail
Neverita sp. Risso 1826 moon snail
Bivalvia
 Cardiida - Veneridae
? Amiantis sp. Carpenter 1863 venus clam
or Antigona
 Cardiida - Mactridae
"Spisula muliniaformis" = Mactromeris muliniaformis, Spisula sp.
"Spisula muliniaformis" = Mactromeris muliniaformis Wagner and Schilling 1923 clam
Spisula sp. Gray 1837 clam