Also known as Shark Site

Where: Kern County, California (35.6° N, 117.9° W: paleocoordinates 41.9° N, 103.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: 4d Member (Goler Formation), Late/Upper Paleocene to Late/Upper Paleocene (58.7 - 48.6 Ma)

• Lofgren et al. 2014: Phenacodus vortmani is known from late Tiffanian to early Bridgerian strata in the Western Interior (Thewissen, 1990), and the dimensions of RAM 7253 (length 10.2 mm, maximum width 6.5 mm) match the size of specimens of P. vortmani from sites of late Tiffanian to Wastachian age (Thewissen, 1990: tables A21–A25). Thus, the tooth from member 4d referred to P. cf. P. vortmani supports a late Paleo- cene or early Eocene age for these strata, but does not refine earlier age estimates based on cocoliths, forams, and mollusks.

• member-level stratigraphic resolution

Environment/lithology: deltaic; lithology not reported

Size class: macrofossils

Primary reference: D. Lofgren, M. McKenna, J. Honey, R. Nydam, C. Wheaton, B. Yokote, L. Henn, W. Hanlon, S. Manning and C. McGee. 2014. New Records of Eutherian Mammals from the Goler Formation (Tiffanian, Paleocene) of California and Their Biostratigraphic and Paleobiogeographic Implications. American Museum Novitates 3797:1-57 [P. Mannion/G. Varnham/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224216: authorized by Philip Mannion, entered by Grace Varnham on 31.01.2022

Creative Commons license: CC BY (attribution)