Where: Kern County, California (35.1° N, 119.2° W: paleocoordinates 34.1° N, 108.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: San Emigdio Formation, Priabonian (38.0 - 33.9 Ma)
• The San Emigdio Formation conformably overlies the Tejon Formation, and is in turn overlain by the Pleito Formation. The San Emigdio Formation has a Late Eocene=refugian age=Priabonian.
• bed-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; lithified sandstone
Size class: macrofossils
Reposited in the USGS
Collection methods: quarrying,
• Collected by T.H. Nilson. Collections likely to be reposited at USGS Menlo Park or USNM (not specified).
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 52829: authorized by Austin Hendy, entered by Austin Hendy on 22.08.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Scaphopoda | |
Dentalium sp. Linnaeus 1758 tusk shell | |
Bivalvia | |
Cardium sp. Linnaeus 1758 cockle | |
"Spisula cf. ramonensis" = Mactromeris ramonensis, "Spisula cf. rushi" = Mactromeris rushi, Mactromeris cf. pittsburgensis
"Spisula cf. ramonensis" = Mactromeris ramonensis Packard 1916 clam
"Spisula cf. rushi" = Mactromeris rushi Wagner and Schilling 1923 clam
Mactromeris cf. pittsburgensis Clark 1925 clam | |
Solen sp. Linnaeus 1758 clam | |
"Acila shumardi" = Acila (Truncacila) shumardi
"Acila shumardi" = Acila (Truncacila) shumardi Dall 1909 divaricate nutclam | |
"Yoldia aff. tenuissima" = Yoldia (Kalayoldia) tenuissima
"Yoldia aff. tenuissima" = Yoldia (Kalayoldia) tenuissima Clark 1918 clam | |
Gastropoda | |
Ficus gesteri Wagner and Schilling 1923 fig shell | |
"Siphonalia merriami" = Siphonalia (Kelletia) merriami
"Siphonalia merriami" = Siphonalia (Kelletia) merriami Wagner and Schilling 1923 true whelk | |
Bruclarkia columbiana Anderson and Martin 1914 snail | |
Polinices cf. washingtonensis, "Neverita thomsonae" = Glossaulax reclusiana
Polinices cf. washingtonensis Weaver 1916 moon snail
"Neverita thomsonae" = Glossaulax reclusiana Deshayes 1839 moon snail |