PBDB Collection

Thousand Creek Formation: Hemphillian, Nevada

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Proboscidea - Mammutidae

	Pliomastodon nevadanus n. sp. ()
	= Mammut matthewi Osborn 1921	Alroy 2002
	see Stock 1936d DUPLICATE REF 3234 or 3235
Mammalia - Carnivora - Mustelidae

	Lutravus halli n. sp. Furlong 1932	Furlong 1932
	from CIT 63; reference apparently overlooked by both Macdonald and Pelletier 1958 and Stirton (4 measurements)

	Taxidea nevadensis n. sp. Butterworth 1916
	(1 measurement)
	= Pliotaxidea nevadensis Butterworth 1916	Alroy 2002
	see Butterworth 1916 DUPLICATE REF 3234 or 3235
Mammalia - Carnivora - Mephitidae

	Pliogale furlongi n. sp. (Merriam 1911)
	DUPLICATE REF 3234 or 3235
Mammalia - Carnivora - Canidae

	Epicyon saevus (Leidy 1858)	Wang et al. 1999
	probably includes "Aelurodon sp." of Merriam and Stock 1928

	Caninae indet. Gill 1872
	"Canis or Vulpes" DUPLICATE REF 3234 or 3235

	Eucyon davisi (Merriam 1911)	Tedford et al. 2009
	"CIT locality 63, Humboldt County, Nevada"

	Metalopex merriami n. sp. Tedford and Wang 2008	Tedford and Wang 2008
Mammalia - Perissodactyla - Equidae

	Neohipparion leptode n. sp. Merriam 1915
	from UCMP 1101: see Merriam 1915c, Merriam and Stock 1928, Stock 1951 DUPLICATE REF 3234 or 3235

	Pliohippus fairbanksi Merriam 1915
	= Dinohippus sp. Quinn 1955	Alroy 2002
	"P. sp." of Macdonald and Pelletier 1958; based on figure, measurements, description, and comparison to Rattlesnake specimen by Merriam and Stock 1928, definitely either D. sp. or a large and advanced Pliohippus: JA pers. obs. 3.2.95 DUPLICATE REF 3234 or 3235
Mammalia - Perissodactyla - Chalicotheriidae

	Chalicotheriidae indet. Gill 1872
	present in older collections DUPLICATE REF 3234 or 3235
Mammalia - Perissodactyla - Rhinocerotidae

	? Teleoceras sp. Hatcher 1894
	DUPLICATE REF 3234 or 3235
	= Teleoceras fossiger Cope 1878	Prothero 2005

	Aphelops malacorhinus Cope 1878	Prothero 2005
	"Thousand Creek FOrmation, Humboldt County, Nevada"
Mammalia - Tayassuidae

	Prosthennops sp. Matthew and Gidley 1904
	= Tayassuinae indet. Palmer 1897	Alroy 2002
	at CIT 63, see Colbert 1938 DUPLICATE REF 3234 or 3235
Mammalia - Camelidae

	Megatylopus sp. (Matthew and Cook 1909)
	= Camelidae indet. Gray 1821	Alroy 2002
	"Paracamelus? sp." of Macdonald and Pelletier 1958 DUPLICATE REF 3234 or 3235
Mammalia - Antilocapridae

	Ilingoceros schizoceros n. sp. Merriam 1911
	may be a juvenile I. alexandrae DUPLICATE REF 3234 or 3235

	Ilingoceros alexandrae n. sp. Merriam 1909
	DUPLICATE REF 3234 or 3235

	Sphenophalos nevadanus n. sp. Merriam 1909
	includes "Plioceros sp." of Frick 1937 because Frick seems to regard Sphenophalos as a nomen dubium and Plioceros as a replacement DUPLICATE REF 3234 or 3235
Mammalia - Talpidae

	Scapanus sp. Pomel 1848
	DUPLICATE REF 3234 or 3235
Mammalia - Lagomorpha - Leporidae

	Hypolagus vetus n. sp. (Kellogg 1910)
	UCMP 1100; Dawson 1958: also at CIT 63 DUPLICATE REF 3234 or 3235 (5 measurements)
Mammalia - Rodentia - Mylagaulidae

	Mylagaulus cf. monodon Cope 1881	Korth 1999
	= Hesperogaulus sp. Korth 1999	Alroy 2002
Mammalia - Rodentia - Cricetidae

	Peromyscus antiquus n. sp. Kellogg 1910
	DUPLICATE REF 3234 or 3235 (1 measurement)
Mammalia - Rodentia - Aplodontidae

	Liodontia furlongi Gazin 1932
	UCMP 1103: type, Gazin 1932 DUPLICATE REF 3234 or 3235
Mammalia - Rodentia - Sciuridae

	Marmota nevadensis n. sp. (Kellogg 1910)
	= Paenemarmota nevadensis Kellogg 1910	Alroy 2002
	recombined as Marmota nevadensis
	UCMP 1105: Black 1963; type DUPLICATE REF 3234 or 3235

	Marmota minor n. sp. (Kellogg 1910)
	UCMP 1083: Black 1963; type DUPLICATE REF 3234 or 3235

	Citellus argonautus (Stirton and Goeriz 1942)	Black 1963
	= Spermophilus argonautus Stirton and Goeriz 1942	Alroy 2002
	recombined as Citellus (Otospermophilus) argonautus
	"Citellus"
Mammalia - Rodentia - Castoridae

	Dipoides cf. stirtoni Wilson 1934	Shotwell 1955
	UCMP 1103; "D. sp." described by Stirton 1935
Mammalia - Rodentia - Heteromyidae

	Cupidinimus magnus n. sp. (Kellogg 1910)
	(1 measurement)
	= Pliosaccomys magnus Kellogg 1910	Alroy 2002
	recombined as Cupidinimus magnus
	UCMP 1103: see Wood 1936c DUPLICATE REF 3234 or 3235

	Diprionomys minimus n. sp. (Kellogg 1910)	Korth and De Blieux 2010
	type of Wood 1936c is from UCMP 1103 according to Wilson 1937b

	Diprionomys parvus n. sp. Kellogg 1910
	DUPLICATE REF 3234 or 3235
see common names

Geography

Country:	United States	State/province:	Nevada	County:	Humboldt
Coordinates:	41.1° North, 117.8° West (view map)
Paleocoordinates:	41.5° North, 116.2° West
Basis of coordinate:	based on political unit

Time

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

Stratigraphy

Formation:	Thousand Creek
Stratigraphic resolution:	formation
Stratigraphy comments: "Tephrochronology and Ar/Ar dates indicate the Thousand Creek Formation was deposited between ~8.3-7.0 Ma (Perkins et al. 1998). However, this age conflicts with the radiometric age for the capping basalt, dated to ~9 Ma (Green 1984)." (Prothero & Davis 2008)

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:earlier list given by Merriam 1917 and augmented by Merriam and Stock 1928 ash near top of section correlated geochemically with the Rattlesnake Tuff, which overlies the Rattlesnake fauna (see), by Perkins et al. 1998 Munthe 1988 mentions a questionable record of "Tomarctus kelloggi" at Thousand Creek that is actually T. sp.; this may be Stirton's indeterminate canid

Metadata

Also known as:	CIT 63; UCMP 1083, 1100, 1101, 1103, 1105, 2744 DUPLICATE REF 3234 or 3235
Database number:	19095
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	B. Allen	Research group:	vertebrate
Created:	1993-09-27 00:00:00	Last modified:	2023-07-29 11:17:38
Access level:	the public	Released:	1993-09-27 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

3234.

R. A. Stirton. 1940. The Nevada Miocene and Pliocene mammalian faunas as faunal units. Proceedings of the Sixth Pacific Science Congress 2:627-640 [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]
1082	5% 42280	C. C. Black. 1963. A review of the North American Tertiary Sciuridae. Bulletin of the Museum of Comparative Zoology 130(3):109-248 [J. Alroy/J. Alroy/J. Head]
1565		E. L. Furlong. 1932. A new genus of otter from the Pliocene of the northern Great Basin province. Carnegie Institution of Washington Publication 418(5):93-103 [J. Alroy/J. Alroy/J. Marcot]
2137		W. W. Korth. 1999. Hesperogaulus, a new genus of mylagaulid rodent (Mammalia) from the Miocene (Barstovian to Hemphillian) of the Great Basin. Journal of Paleontology 73(5):945-951 [J. Alroy/J. Alroy/J. Marcot]
32080		W. W. Korth and D. D. De Blieux. 2010. Rodents and lagomorphs (Mammalia) from the Hemphillian (Late Miocene) of Utah. Journal of Vertebrate Paleontology 30(1):226-235 [J. Alroy/J. Alroy]
51726		D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
3108		J. A. Shotwell. 1955. Review of the Pliocene Beaver Dipoides. Journal of Paleontology 29(1):129-144 [J. Alroy/J. Alroy/J. Ju]
52061		R. H. Tedford and X. Wang. 2008. Metalopex, a new genus of fox (Carnivora: Canidae: Vulpini) from the late Miocene of western North America. Natural History Museum of Los Angeles County, Science Series 41:273-278 [J. Marcot/J. Marcot/J. Marcot]
52058		R. H. Tedford, X. Wang, and B. E. Taylor. 2009. Phylogenetic Systematics of the North American Fossil Caninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 325:1-218 [J. Marcot/J. Marcot/G. Lloyd]
3558		X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]