Friars Formation Upper Tongue (SDSNH 3612) (Eocene of the United States)

Where: San Diego County, California (32.9° N, 117.1° W: paleocoordinates 33.1° N, 103.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Upper Tongue Member (Friars Formation), Early/Lower Uintan (46.2 - 40.4 Ma)

Environment/lithology: terrestrial

Primary reference: S. L. Walsh. 1998. Notes on the anterior dentition and skull of Proterixoides (Mammalia: Insectivora: Dormaaliidae), and a new dormaaliid genus from the early Uintan (Middle Eocene) of southern California. Proceedings of the San Diego Society of Natural History 34:1-26 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 16757: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• treated as undifferentiated Friars by Walsh 1997, but Upper Tongue by Walsh 1998
Mammalia
 Perissodactyla -
Hesperaletes walshi1 Colbert 2006 odd-toed ungulate
 Artiodactyla - Oromerycidae
Oromerycidae indet.3 Gazin 1955 even-toed ungulate
 Theriamorpha - Sespedectidae
Patriolestes novaceki Walsh 1998 placental
 Rodentia - Eomyidae
Metanoiamys agorus2 Chiment and Korth 1996 rodent