USGS Cenozoic M4656 East Twin Creek (Eocene of the United States)

Also known as UCMP IP8675

Where: Kern County, California (34.9° N, 119.3° W: paleocoordinates 35.2° N, 106.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Uvas Conglomerate Member (Tejon Formation), Middle Eocene (48.6 - 37.2 Ma)

• Possibly early Eocene. The doubtfully identified

•Turritella ranges from the upper Paleocene "Meganos Stage" to the lower Eocene "Capay Stage." Correlation with the "Capay" is suggested by the fact that this assemblage overlies an undoubted "Capay" locality (USGS loc. M4654). Large foraminifers identified by K. N. Sachs, Jr., from the same locality (written commun., Feb. 15,1972):

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by Nilsen, T. H. in 1971

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 194433: authorized by Patricia Holroyd, entered by Susan Tremblay on 19.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Foraminifera indet. d'Orbigny 1826
 Pectinida - Pectinoidae
? Spondylus sp. Linnaeus 1758 scallop
 Carditida - Carditidae
Venericardia sp. Lamarck 1801 clam
small specimen
 Neogastropoda - Muricidae
 Sorbeoconcha - Turritellidae
Turritella cf. andersoni Dickerson 1916 turret shell