PBDB Collection

Warren: Late/Upper Hemphillian, California

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Proboscidea - Mammutidae

	Pliomastodon vexillarius Matthew 1930
	= Mammut matthewi Osborn 1921	Alroy 2002
	DUPLICATE REF 2893 or 2894
Mammalia - Proboscidea - Gomphotheriidae

	Cuvieronius aff. edensis (Frick 1921)
	= Rhynchotherium aff. falconeri Osborn 1923	Alroy 2002
	DUPLICATE REF 2893 or 2894
Mammalia - Perissodactyla - Equidae

	Pliohippus edensis Frick 1921
	= Dinohippus leidyanus Osborn 1918	Alroy 2002
	DUPLICATE REF 2893 or 2894
Mammalia - Perissodactyla - Rhinocerotidae

	Teleoceras cf. fossiger (Cope 1878)
	= Teleoceras sp. Hatcher 1894	Alroy 2002
	appears to be based on out-of-date i.d. of May DUPLICATE REF 2893 or 2894
Mammalia - Antilocapridae

	? Sphenophalos sp. Merriam 1909
	may include "bovid or cervid" of Merriam 1919 from UCMP 2578 "two miles south of Warren" DUPLICATE REF 2893 or 2894
Mammalia - Camelidae

	Camelidae indet. Gray 1821	May et al. 2011

	Hemiauchenia vera (Matthew 1909)
	recombined as Pleiolama vera
	DUPLICATE REF 2893 or 2894

	Megatylopus cf. matthewi Webb 1965
	DUPLICATE REF 2893 or 2894
Mammalia - Tayassuidae

	Prosthennops sp. Matthew and Gidley 1904
	= Tayassuinae indet. Palmer 1897	Alroy 2002
	DUPLICATE REF 2893 or 2894
Mammalia - Carnivora - Felidae

	Machairodus cf. coloradensis Cook 1922
	recombined as Amphimachairodus coloradensis
	DUPLICATE REF 2893 or 2894
Mammalia - Carnivora - Ursidae

	cf. Agriotherium sp. Wagner 1837
	DUPLICATE REF 2893 or 2894
Mammalia - Carnivora - Canidae

	Osteoborus cf. cyonoides (Martin 1928)
	= Borophagus cf. secundus VanderHoof 1931	Alroy 2002
	DUPLICATE REF 2893 or 2894
Mammalia - Talpidae

	cf. Scapanus sp. Pomel 1848
	DUPLICATE REF 2893 or 2894
Mammalia - Soricidae

	Cryptotis sp. Pomel 1848
	DUPLICATE REF 2893 or 2894
Mammalia - Lagomorpha - Leporidae

	Hypolagus edensis Frick 1921	May et al. 2011

	Hypolagus vetus (Kellogg 1910)
	DUPLICATE REF 2893 or 2894
Mammalia - Rodentia - Sciuridae

	cf. Spermophilus sp. Cuvier 1825
	DUPLICATE REF 2893 or 2894
Mammalia - Rodentia - Heteromyidae

	Perognathus sp. Maximillian 1839
	= Perognathinae indet. Coues 1875	Alroy 2002
	DUPLICATE REF 2893 or 2894
	= Perognathus sp. Maximillian 1839	Pagnac 2005
	= Perognathus sp. Maximillian 1839	May et al. 2011
	The reidentification attributed to Pagnac 2005 was an error on my part (Marcot), and should be deleted
Mammalia - Rodentia - Geomyidae

	Geomyidae indet. Bonaparte 1845
	said to be a new genus DUPLICATE REF 2893 or 2894

	Prothomomys warrenensis n. sp. May et al. 2011	May et al. 2011
Mammalia - Rodentia - Cricetidae

	Peromyscus sp. Gloger 1841
	= Cricetidae indet. Fischer von Waldheim 1817	Alroy 2002
	DUPLICATE REF 2893 or 2894

	Calomys gidleyi Baskin 1978
	= Bensonomys aff. gidleyi Baskin 1978	Alroy 2002
	original and current combination Calomys (Bensonomys) gidleyi
	DUPLICATE REF 2893 or 2894

	Peromyscus valensis Shotwell 1967
	= Antecalomys cf. valensis Shotwell 1967	Alroy 2002
	recombined as Postcopemys valensis
	DUPLICATE REF 2893 or 2894

	Jacobsomys dailyi n. sp. May et al. 2011	May et al. 2011

	Repomys gustelyi n. sp. May 1981
	see May 1981 DUPLICATE REF 2893 or 2894 (3 measurements)
see common names

Geography

Country:	United States	State/province:	California	County:	Kern
Coordinates:	35.3° North, 118.5° West (view map)
Paleocoordinates:	35.2° North, 115.7° West
Basis of coordinate:	based on political unit
Geographic resolution:	small collection

Time

Period:	Neogene
10 m.y. bin:	Cenozoic 6
*Period:	Tertiary	*Epoch:	Miocene
Key time interval:	Late/Upper Hemphillian
Age range of interval:	9.40000 - 4.70000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:

Horned Toad

Lithology and environment

Primary lithology:	not reported
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils

Collection methods and comments

Reason for describing collection:	general faunal/floral analysis
Taxonomic list comments:apparently also includes UCMP V-2503 and UCR RV-6834 mostly from Mbr. 2 of fm., some specimens from mbrs. 3 and 4 initial report of May 1981 provided an incomplete list

Metadata

Also known as:	UCR RV-7702; UCMP RV-7702 DUPLICATE REF 2893 or 2894
Database number:	19604
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	P. Holroyd	Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2023-12-02 00:14:45
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

2893.

R. E. Reynolds, R. L. Reynolds, and A. F. Pajak, III. 1991. Blancan, Irvingtonian, and Rancholabrean(?) land mammal age faunas from western Riverside County, California. In R.E. Reynolds, D.P. Whistler (eds.), San Bernardino County Museum Association Quarterly 38(3-4):37-40 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
51761		S. R. May, M. O. Woodburne, E. H. Lindsay, L. B. Albright, III, A. Sarna-Wojcicki, E. Wan, and E. B. Wahl. 2011. Geology and mammalian paleontology of the Horned Toad Hills, Mojave Desert, California, USA. Palaeontologia Electronica 13(3):28A [J. Marcot/J. Marcot]
51603		D. Pagnac. 2005. New camels (Mammalia: Artiodactyla) from the Barstow Formation (middle Miocene), San Bernardino County, California. PaleoBios 25(2):19-13 [J. Marcot/J. Marcot]