Agouron/Pfizer (Eocene of the United States)

Also known as SDMNH 4529

Where: San Diego County, California (32.9° N, 117.2° W: paleocoordinates 33.6° N, 103.2° W)

• coordinate estimated from map

When: Ardath Formation (La Jolla Group), Lutetian (47.8 - 41.3 Ma)

• lower middle Eocene age (Golz and Lillegraven, 1977; Geological Survey Research, 1980) and corresponds to the Eocene Penutian and Ulatisian stages of Mallory (1959) (Lohmar et al., 1979).

Environment/lithology: slope; gray siltstone

• The unit has been interpreted to have been deposited on the lower portion of a continental slope (Lohmar et al., 1979).
• dark gray, laminated and bioturbated siltstone overlying a dark gray massive siltstone

Size class: macrofossils

Primary reference: C. E. Schweitzer and R. M. Feldmann. 2002. New Eocene decapods (Thalassinidea and Brachyura) from Southern California. Journal of Crustacean Biology 22:938-967 [C. Schweitzer/C. Schweitzer]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 200664: authorized by Mark Uhen, entered by Mark Uhen on 12.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Malacostraca
 Decapoda - Callianassidae
Neocallichirus rhinos
Neocallichirus rhinos Schweitzer and Feldmann 2002 decapod
 Decapoda - Euryplacidae
Orbitoplax weaveri
Orbitoplax weaveri Rathbun 1926 crab
 Decapoda - Hexapodidae
Palaeopinnixa granulosa
Palaeopinnixa granulosa Schweitzer and Feldmann 2002 crab