Where: Ventura County, California (34.3° N, 118.7° W: paleocoordinates 36.8° N, 101.7° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Llajas Formation, Ypresian (56.0 - 47.8 Ma)
• From lower Llajas Formation, lower "Domengine" stage, base of CP12a calcareous nannoplankton zone, upper Ypresian stage, Lower Eocene, C22n chron.
• bed-level stratigraphic resolution
Environment/lithology: offshore; sandstone and argillaceous siltstone
Size class: macrofossils
Preservation: mold/impression
Reposited in the LACM
• Collected by R.L. Squires (1978)
Primary reference: R. L. Squires. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 350:1-76 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 201250: authorized by Jonathan Marcot, entered by Jonathan Marcot on 02.05.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
| |
"Olequahia domenginica" = Ranella domenginica
"Olequahia domenginica" = Ranella domenginica Vokes 1939 snail | |
Xenophora stocki Dickerson 1916 carrier shell | |
Bivalvia | |
"Gari cf. eoundulata" = Gari (Gobraeus) eoundulata
"Gari cf. eoundulata" = Gari (Gobraeus) eoundulata Vokes 1939 clam | |
Brachidontes (Brachidontes) cowlitzensis Weaver and Palmer 1922 mussel | |
Glycymeris (Glycymeris) rosecanyonensis Hanna 1927 clam |