UCMP A3073, Fenn Ranch (Eocene of the United States)

Where: Yolo County, California (38.5° N, 122.0° W)

• Paleocoordinates: 46.3° N, 94.5° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Capay Formation, Ypresian (56.0 - 48.1 Ma)

• 65-90 feet stratigraphically below the Pliocene conglomerate contact

• bed-level stratigraphic resolution

Environment/lithology: submarine fan; lithified shale

• Capay Formation is an exposure of a submarine canyon and base of slope deposit, deposited at bathyal depths (deeper than 1000 meters) by a variety of mechanisms.

Size class: macrofossils

Preservation: mold/impression

Collected by Herdis Bentson in 1938; reposited in the UCMP

Primary reference: A. K. Miller and H. R. Downs. 1950. Tertiary nautiloids of the Americas: supplement. Journal of Paleontology 24:1-18 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180391: authorized by Matthew Clapham, entered by Matthew Clapham on 14.07.2016, edited by Jonathan Marcot

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Terebratulida - Cancellothyrididae
Terebratulina cf. tejonensis
Terebratulina cf. tejonensis Stanton 1896
"Terebratulina ... very similar to T. tejonensis waringi"
Cephalopoda
 Nautilida - Nautilidae
Eutrephoceras sp.
Eutrephoceras sp. Hyatt 1894