PBDB Collection

Skull Spring: Barstovian, Oregon

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Proboscidea - Proboscidea

	Proboscidea indet. Illiger 1811	Shotwell 1968
	UO 2491
Mammalia - Perissodactyla - Rhinocerotidae

	Rhinocerotidae indet. Gray 1821
Mammalia - Perissodactyla - Equidae

	Merychippus brevidontus Bode 1935	Bode 1935

	Merychippus isonesus (Cope 1889)
	recombined as Acritohippus isonesus
	(1 measurement)

	Hypohippus sp. (Leidy 1858)
	original and current combination Anchitherium (Hypohippus)
	may include "? Chalicotheriidae indet." according to Skinner 1968

	Parahippus coloradensis Gidley 1907
Mammalia - Palaeomerycidae

	Dromomeryx borealis (Cope 1877)
	includes type of "Rakomeryx gazini" of Frick 1937 (1 measurement)
Mammalia - Moschidae

	Blastomeryx sp. Cope 1877
	= Blastomerycinae indet. Frick 1937	Alroy 2002
Mammalia - Antilocapridae

	Cosoryx sp. Leidy 1869
	= Paracosoryx sp. Frick 1937	Frick 1937
	original and current combination Cosoryx (Paracosoryx)
	subgenus Paracosoryx; "Merycodus ? sp. a" and "sp. b"
Mammalia - Tayassuidae

	Platygonus sp. Leconte 1848
	= Tayassuinae indet. Palmer 1897	Gazin 1938
	said to be "Thinohyus or Desmathyus"
Mammalia - Merycoidodontidae

	? Ticholeptus sp. Cope 1878
	assigned to "Metoreodon cf. profectus" and "Pronomotherium sp." by Thorpe 1937, but i.d. confirmed by Schultz and Falkenbach 1940; this is probably T. zygomaticus of Kelly and Lander 1988 from "Skull Springs"
	= Ticholeptus zygomaticus Cope 1878	MacFadden 2006
Mammalia - Carnivora - Canidae

	? Canidae indet. Fischer de Waldheim 1817

	Euoplocyon sp. Matthew 1924
	= Euoplocyon brachygnathus Douglass 1903	Wang et al. 1999

	Tomarctus cf. brevirostris Cope 1873
	= Paratomarctus temerarius Leidy 1858	Wang et al. 1999
	"T. cf. rurestris" of Shotwell 1968
Mammalia - Carnivora - Ursidae

	Hemicyon sp. Lartet 1851
	= Ursavus cf. primaevus Gaillard 1899	Hunt 1998
	said to be new
Mammalia - Carnivora - Mustelidae

	Martes (Tomictis) gazini n. sp. Hall 1931
	recombined as Plionictis gazini
	from CIT 57: see Hall 1931
Mammalia - Carnivora - Amphicyonidae

	cf. Pliocyon medius Matthew 1918

	Amphicyon cf. frendens Matthew 1924

	Amphicyon sinapius Matthew 1902
	recombined as Cynelos sinapius
Mammalia - Rodentia - Sciuridae

	Citellus ridgwayi n. sp. Gazin 1932	Bryant 1945

	Sciurus malheurensis n. sp. Gazin 1932
	recombined as Protospermophilus malheurensis
	(4 measurements)

	Sciurus tephrus n. sp. Gazin 1932
	recombined as Protospermophilus tephrus
	includes type of "Citellus ridgwayi"
Mammalia - Rodentia - Aplodontidae

	Liodontia alexandrae (Furlong 1910)
	(6 measurements)
Mammalia - Rodentia - Heteromyidae

	? Diprionomys oregonensis n. sp. Gazin 1932
	recombined as Peridiomys oregonensis
Mammalia - Rodentia - Mylagaulidae

	Mylagaulus cf. laevis Matthew 1902
	(6 measurements)
	= Hesperogaulus gazini n. sp. Korth 1999	Korth 1999
see common names

Geography

Country:	United States	State/province:	Oregon	County:	Malheur
Coordinates:	43.6° North, 117.5° West (view map)
Paleocoordinates:	44.4° North, 114.4° West
Basis of coordinate:	based on political unit

Time

Period:	Neogene	Epoch:	Miocene
10 m.y. bin:	Cenozoic 5
*Period:	Tertiary
Key time interval:	Barstovian
Age range of interval:	16.30000 - 12.50000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Butte Creek
Local section:	MlhrN	Local bed:	1
Local order:	bottom to top

Lithology and environment

Primary lithology:	"volcaniclastic"
Includes fossils?	Y
Lithology description: Volcanic Sandstone
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils

Collection methods and comments

Reason for describing collection:	taxonomic analysis
Taxonomic list comments:not in the Sucker Creek Fm., contra Tedford et al. 1987 within the Red Basin and based on float material from several localities, most or all of which were a few miles south of UO 2495 and 2497

Metadata

Also known as:	CIT 57; UO 2490, 2491, 2492
Database number:	19056
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	M. Uhen	Research group:	vertebrate
Created:	1994-07-26 00:00:00	Last modified:	2019-05-28 18:41:38
Access level:	the public	Released:	1994-07-26 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

1591.

C. L. Gazin. 1932. A Miocene Mammalian Fauna From South-Eastern Oregon. Carnegie Institution of Washington Publication 418(3):37-86 [J. Alroy/J. Alroy/J. Marcot]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1104		F. D. Bode. 1935. Tooth Characters of Protohippine Horses with Special Reference to Species From the Merychippus Zone, California. Carnegie Institution of Washington Publication 453(5):39-63 [J. Alroy/J. Alroy/J. Marcot]
64933		M. D. Bryant. 1945. Phylogeny of Nearctic Sciuridae. American Midland Naturalist 33(2):257-390 [J. Marcot/J. Marcot]
6222		C. Frick. 1937. Horned ruminants of North America. Bulletin of the American Museum of Natural History 69:1-669 [J. Alroy/J. Alroy/M. Uhen]
1602		C. L. Gazin. 1938. Fossil peccary remains from the upper Pliocene of Idaho. Journal of the Washington Academy of Sciences 28(2):41-48 [J. Alroy/J. Alroy/J. Alroy]
1976		R. M. Hunt, Jr. 1998. Ursidae. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary Mammals of North America 1:174-195 [J. Alroy/J. Alroy/M. Uhen]
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]
25620	fossil record	B. J. MacFadden. 2006. North American Miocene Land Mammals from Panama. Journal of Vertebrate Paleontology 26(3):720-734 [B. Beatty/B. Beatty/J. Ceballos]
3117		J. A. Shotwell. 1968. Miocene mammals of southeast Oregon. Bulletin of the Museum of Natural History, University of Oregon 14:1-67 [J. Alroy/J. Alroy/J. Marcot]
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]