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Sharktooth Hill (Miocene of the United States)

Also known as LACM 4956, CAS 725, UCMP V74021

Where: Kern County, California (35.3° N, 118.5° W: paleocoordinates 35.2° N, 113.3° W)

When: Round Mountain Member (Temblor Formation), Langhian (16.0 - 13.7 Ma)

• Locality described as being in "Round Mountain Silt", Barstovian

•The Round Mountain Silt has been dated to 16.114.5 Ma based on magnetostratigraphy, strontium dating, and diatoms indicative of the Denticulopsis lauta A biozone (1615 Ma). More specifically, the middle portion of Round Mountain Silt (including the bone bed) has been correlated with Chron C5Br, indicating an age range of 16.015.2 Ma [193]. (Marx & Fordyce, 2015)

• member-level stratigraphic resolution

Environment/lithology: shoreface; siltstone

• The environment is reconstructed on the basis of the fauna as coastal or shoreline marine. Marine taxa dominant (whales and pelagic birds) with some terrestrial mammals.

•deep-sea fan, fed by subaerial uplifts of Franciscan and granitic basement

Size class: macrofossils

Reposited in the LACM

• collected by S. A. McLeod of the Los Angeles County Museum of Natural History

Primary reference: S. D. Emslie. 1988. An early condor-like vulture from North America. The Auk 105(3):529-535 [J. Hunter/J. Hunter/J. Hunter] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13297: authorized by John Hunter, entered by John Hunter on 18.02.2002, edited by Mark Uhen, Catalina Pimiento, Patricia Holroyd and Jonathan Marcot

Creative Commons license: CC BY (attribution)