LACMIP #7482 (Eocene of the United States)

Where: Ventura County, California (34.3° N, 118.7° W: paleocoordinates 35.0° N, 104.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Llajas Formation, Lutetian (47.8 - 41.3 Ma)

• Near top of the Llajas Formation, "Domengine" stage, middle of CP13a calcareous nannoplankton zone, upper Lutetian stage, Middle Eocene, C21n chron. Approximately 74 m below contact with Sespe Formation and above top of basal conglomerate of the Llajas Formation and 40 m stratigraphically above the Llajas and Santa Susana Formation contact.

• bed-level stratigraphic resolution

Environment/lithology: offshore; bioturbated, silty sandstone

• Listed as "shallow marine regressive". This collection is from deposits of slightly deeper waters than those of the underlying transgressive shallow marine facies, and were less effected by storm reworking.
• Bioturbated silty sandstone with minor occurrences of laminated sandtsone and scattered fossiliferous units.

Size class: macrofossils

Preservation: mold/impression

Reposited in the LACM

• Collected by W.P. Woodring, K.E. Lohman, and W. Maitland (1929)

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 51941: authorized by Austin Hendy, entered by Austin Hendy on 06.07.2005

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
Anthozoa
 Scleractinia - Oculinidae
"Archohelia clarki" = Petrophyllia clarki
"Archohelia clarki" = Petrophyllia clarki Vaughan 1927 stony coral