PBDB Collection

Turlock Lake (UCMP V-5836) (Neogene of the United States)

Also known as Modesto Reservoir; Rhino Island (LACM loc. 3942); Rock Point (LACM loc. 3908); Sand Point (LACM loc. 3909); Turlock Lake Site 2 (LACM loc. 3926); UCMP V-5405

Where: Stanislaus County, California (37.6° N, 120.8° W: paleocoordinates 37.5° N, 118.0° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Mehrten Formation, Late/Upper Hemphillian (10.3 - 4.9 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; volcaniclastic, red, argillaceous mudstone

• "flood plain"

• formation is ranges from "fine siltstones to coarse gravels" and Pliotaxidea specimen is from "a small channel deposit of reddish mudstone composed of volcanic ash and clay particles"

Reposited in the UCMP

Primary reference: H. Wagner. 1976. A new species of Pliotaxidea (Mustelidae; Carnivora) from California. Journal of Paleontology 50(1):107-127 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 19582: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Mammalia
Carnivora - Mustelidae	Mustelidae indet., Plesiogulo marshalli¹, Pliotaxidea garberi n. sp. Mustelidae indet. Fischer 1817 mustelid carnivore "Sminthosinis or Trigonictis ?" Plesiogulo marshalli¹ Martin 1928 mustelid carnivore "Modesto Reservoir" Pliotaxidea garberi n. sp. Wagner 1976 badger
Carnivora - Procyonidae	Procyon sp. Procyon sp. Storr 1780 raccoon
Carnivora - Canidae	Borophagus secundus⁵, Borophagus parvus⁵, Eucyon davisi⁴ Borophagus secundus⁵ VanderHoof 1931 bone-crushing dog LACM loc. 3942 Borophagus parvus⁵ Wang et al. 1999 bone-crushing dog LACM locs. 3908, 3909, 3926, 3942; "Osteoborus sp." Eucyon davisi⁴ Merriam 1911 canine "Turlock locality 4, UCMP locality V5837, Mehrten Formation (late Hemphillian), Stanislaus County, California"
Perissodactyla - Equidae	Neohipparion cf. leptode, Dinohippus interpolatus Neohipparion cf. leptode Merriam 1915 hipparionine horse Dinohippus interpolatus Cope 1893 horse
Perissodactyla - Rhinocerotidae	Teleoceras fossiger² Teleoceras fossiger² Cope 1878 rhinoceros
Artiodactyla - Palaeomerycidae	Pediomeryx cf. hemphillensis⁶ Pediomeryx cf. hemphillensis⁶ Stirton 1936 ruminant "Modesto Reservoir"
Rodentia - Castoridae	Dipoides vallicula Dipoides vallicula Shotwell 1970 beaver
Actinopteri
Salmoniformes - Salmonidae	Oncorhynchus rastrosus³ Oncorhynchus rastrosus³ Cavender and Miller 1972 Pacific salmon from LACM 3909=UCMP V5405, a channel fill distinct from other "Turlock Lake" localities

¹Harrison 1981; ²Prothero 2005; ³Sankey et al. 2016; ⁴Tedford et al. 2009; ⁵Wang et al. 1999; ⁶Webb 1983