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 (San Lorenzo Group), Late/Upper Eocene (37.2 - 33.9 Ma)
• STRATIGRAPHIC RELATIONS: From San Emigdio Fm San Lorenzo Group, which unconformably overlies the Meagnos and Tejon Fm's (Early-Middle Eocene), and is unconformably overlain by the Pleito Fm (Early Oligocene) of the San Lorenzo Group. THICKNESS: From bed within unit of formation that reaches 700 ft in thicknes. AGE: Late Eocene on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: From upper unit of the formation.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, shelly/skeletal, brown, gray, blue, sandy shale and lithified, fine-grained, shelly/skeletal sandstone
Size class: macrofossils
Reposited in the UCMP
Collection methods: surface (in situ),
• COLLECTOR: Presumably C. M. Wagner and K. H. Schilling (1917). REPOSITORY: Univeristy of California Collections of Invertebrate Paleontology, presumably UCMP.
Primary reference: C. M. Wagner and K. H. Schilling. 1923. The San Lorenzo Group of the San Emigdio region, California. University of California Publications, Bulletin of the Department of Geological Sciences 14(6):235-276 [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 71168: authorized by Austin Hendy, entered by Austin Hendy on 20.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Yoldia cooperii Gabb 1865 clam | |
"Solen curtus" = Solena (Plectosolen) conradi
"Solen curtus" = Solena (Plectosolen) conradi Dall 1900 clam | |
Cardium sp. Linnaeus 1758 cockle | |
"Spisula ramonensis" = Mactromeris ramonensis
"Spisula ramonensis" = Mactromeris ramonensis Packard and Clark 1915 clam | |
Antigona undosa, "Antigona mathewsonii" = Amiantis mathewsoni
Antigona undosa Clark 1918 venus clam
"Antigona mathewsonii" = Amiantis mathewsoni Gabb 1866 venus clam | |
Gastropoda | |
Bulla clarki snail | |
Crepidula praerupta Conrad 1849 slipper shell | |
Molopophorus dalli Anderson and Martin 1914 snail | |
Siphonalia merriami Wagner and Schilling 1923 true whelk | |
Natica recluziana Deshayes 1839 moon snail |