Where: Kern County, California (35.0° N, 119.2° W: paleocoordinates 33.4° N, 109.4° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Pleito Formation (San Lorenzo Group), Early/Lower Oligocene (33.9 - 28.4 Ma)
• STRATIGRAPHIC RELATIONS: From Pleito Fm of the San Lorenzo Group, which unconformably overlies the San Emigdio Fm (Late 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 600 ft in thicknes. AGE: Late Eocene on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: From middle unit of the formation.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, shelly/skeletal, brown, gray, blue, conglomeratic sandstone 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 71183: authorized by Austin Hendy, entered by Austin Hendy on 20.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Acila shumardi" = Acila (Truncacila) shumardi
"Acila shumardi" = Acila (Truncacila) shumardi Dall 1909 divaricate nutclam | |
"Mytilus mathewsonii" = Crenomytilus mathewsoni
"Mytilus mathewsonii" = Crenomytilus mathewsoni Gabb 1866 mussel | |
"Metis rostellata" = Psammotreta (Leporimetis) rostellata
"Metis rostellata" = Psammotreta (Leporimetis) rostellata Clark 1918 tellin clam | |
"Dosinia mathewsonii" = Dosinia (Dosinia) whitneyi, Antigona undosa, "Antigona mathewsonii" = Amiantis mathewsoni, Macrocallista pittsburgensis
"Dosinia mathewsonii" = Dosinia (Dosinia) whitneyi Gabb 1866 venus clam
Antigona undosa Clark 1918 venus clam
"Antigona mathewsonii" = Amiantis mathewsoni Gabb 1866 venus clam
Macrocallista pittsburgensis Dall 1900 venus clam | |
"Spisula rushi" = Mactromeris rushi
"Spisula rushi" = Mactromeris rushi Wagner and Schilling 1923 clam |