LACMIP #20586 (Eocene of the United States)

Also known as LACMIP #22371, LACMIP #16654

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 near base of the Llajas Formation, lower "Domengine" stage, base of CP12a calcareous nannoplankton zone, upper Ypresian stage, Lower Eocene, C22n chron.

• bed-level stratigraphic resolution

Environment/lithology: shoreface; lithified, bioturbated sandstone

• Listed as "shallow marine facies (shoreface-offshore)" - assigned to shoreface environment as near the base of transgressive unit.
• Alternating laminated and bioturbated sandstones.

Size class: macrofossils

Preservation: mold/impression

Reposited in the LACM

• Collected by Kinenry and Sherman (date unknown)

Primary reference: R. L. Squires. 2001. Additions to the Eocene megafossil fauna of the Llajas Formation, Simi Valley, southern California. Contributions in Science (Natural History Museum of Los Angeles County) 489:1-40 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51928: authorized by Austin Hendy, entered by Austin Hendy on 04.07.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for mollusca, corals, arthropoda, and includes other groups where obvserved; list compiled from meticulous search of the invert collections at the LACM, private collections and fieldwork.
Show authors, comments, and common names
Bivalvia
 Cardiida - Psammobiidae
"Gari texta" = Gari (Gobraeus) texta
"Gari texta" = Gari (Gobraeus) texta Gabb 1864 clam
Gastropoda
 Neogastropoda - Mitridae
Mitra simplicissima
Mitra simplicissima Cooper 1894 mitre shell
 Neogastropoda - Borsoniidae
Bathytoma pacifica
Bathytoma pacifica Squires 2001 snail