USGS Cenozoic M4645 Liveoak Canyon (Eocene of the United States)

Also known as UCMP IP8664

Where: Kern County, California (35.0° N, 118.9° W: paleocoordinates 35.2° N, 105.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

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

• Middle Eocene, "Transition Stage" or "Tejon Stage."

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Collected by Nilsen, T. H. in 1971; reposited in the UCMP

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 194188: authorized by Patricia Holroyd, entered by Patricia Holroyd on 16.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

• Identified by W.O. Addicott.
Bivalvia
 Carditida - Carditidae
Venericardia sp. Lamarck 1801 clam
internal molds
 Carditida - Crassatellidae
? Crassatella sp. Lamarck 1799 clam
 Cardiida - Cardiidae
 Cardiida - Tellinidae
? Macoma sp. Leach 1819 tellin clam
 Cardiida - Mactridae
"Spisula acutirostrata" = Mactromeris acutirostrata, "Spisula cf. merriami" = Mactromeris merriami
"Spisula acutirostrata" = Mactromeris acutirostrata Packard 1916 clam
"Spisula cf. merriami" = Mactromeris merriami Packard 1916 clam
Gastropoda
 Neotaenioglossa - Calyptraeidae
? Crepidula sp. Lamarck 1799 slipper shell
 Sorbeoconcha - Ficidae
"Ficopsis horni" = Ficus
"Ficopsis horni" = Ficus fig shell
 Sorbeoconcha - Cassidae
Galeodea sp. Link 1807 snail
 Sorbeoconcha - Naticidae
Naticidae indet. Guilding 1834 moon snail
? Amauropsis sp. Mörch 1857 moon snail
"Neverita secta" = Glossaulax reclusiana Deshayes 1839 moon snail
 Cerithioidea - Turritellidae
Turritella buwaldana Dickerson 1916 turret shell
Turritella uvasana Conrad 1855 turret shell