PBDB Collection

Sucker Creek: Barstovian, Oregon

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Proboscidea - Proboscidea

	Mastodont sp.
	= Proboscidea indet. Illiger 1811	Alroy 2002
Mammalia - Carnivora - Ursidae

	Ursavus informal new species II	Hunt 1998
	CIT 44; said to be new
Mammalia - Carnivora - Procyonidae

	Procyoninae indet. Gray 1825	Emry and Eshelman 1998
	undescribed LACM specimen
Mammalia - Carnivora - Canidae

	? Canidae indet. Fischer de Waldheim 1817
Mammalia - Perissodactyla - Equidae

	Hypohippus osborni Gidley 1907

	Parahippus avus (Marsh 1874)
	recombined as Desmatippus avus
	(1 measurement)

	Merychippus brevidontus Bode 1935

	Merychippus isonesus (Cope 1889)
	recombined as Acritohippus isonesus
	assigned to "M. seversus" by Downs 1961, but i.d. confirmed by Tedford et al. 1987; see also Hulbert and MacFadden 1991 (1 measurement)
Mammalia - Perissodactyla - Chalicotheriidae

	Moropus sp. Marsh 1877
Mammalia - Perissodactyla - Rhinocerotidae

	Rhinocerotidae indet. Gray 1821

	Teleoceras medicornutum Osborn 1904	Prothero 2005
Mammalia - Merycoidodontidae

	Merychyus sp. Leidy 1858

	Ticholeptus sp. Cope 1878
	(3 measurements)
	= Ticholeptus zygomaticus Cope 1878	Kelly and Lander 1988
Mammalia - Tayassuidae

	Prosthennops sp. Matthew and Gidley 1904
	= Tayassuinae indet. Palmer 1897	Alroy 2002
Mammalia - Camelidae

	Camelidae indet. Gray 1821
	two forms
Mammalia - Antilocapridae

	Merycodus nevadensis Merriam 1911
	recombined as Paracosoryx nevadensis
Mammalia - Palaeomerycidae

	Dromomeryx borealis (Cope 1877)
	(1 measurement)
Mammalia - Rodentia - Mylagaulidae

	Mylagaulus cf. laevis Matthew 1902
	= Hesperogaulus sp. Korth 1999	Korth 1999
Mammalia - Rodentia - Zapodidae

	Schaubeumys sp. Wood 1935
	= Zapodidae indet. Coues 1875	Downing and Swisher 1993
Mammalia - Rodentia - Sciuridae

	Sciurus sp. Linnaeus 1758
	= Sciuridae indet. Gray 1821	Alroy 2002
Mammalia - Rodentia - Castoridae

	informal Chalicomyid sp.
	= Castoridae indet. Gray 1821	Alroy 2002
Mammalia - Rodentia - Eomyidae

	Pseudotheridomys sp. Schlosser 1926	Downing and Swisher 1993
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:	Sucker Creek
Local section:	MlhrE	Local bed:	1
Local order:	bottom to top

Lithology and environment

Environment:

terrestrial indet.

Taphonomy

Modes of preservation:

body

Collection methods and comments

Taxonomic list comments:type section dated at 14.77 +/- 0.23 Ma (Ar-Ar) "above the vertebrate localities": Downing and Swisher 1993; fm. dated elsewhere (?) at 16.7 (= 17.14) Ma by Evernden and James 1964 (KA 1285), who report that the original fauna's stratigraphic position is unclear; ash near top of section dated at 14.93 +/- 0.08 Ma (Ar/Ar) by Perkins et al. 1998, and this date seems preferable
see also Downing and Park 1998

Metadata

Database number:	19092
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	J. Alroy	Research group:	vertebrate
Created:	1993-09-27 00:00:00	Last modified:	2009-12-20 12:59:35
Access level:	the public	Released:	1993-09-27 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

3023.

D. W. Scharf. 1935. A Miocene Mammalian Fauna From Sucker Creek, Southeastern Oregon. Carnegie Institution of Washington Publication 453(7):97-118 [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]
6250		K. F. Downing and C. C. Swisher, III. 1993. New Ar-40/Ar-39 dates and refined geochronology of the Sucker Creek Formation, Oregon. Journal of Vertebrate Paleontology 13(3):33A [J. Alroy/J. Alroy/J. Alroy]
1446		R. J. Emry and R. E. Eshelman. 1998. The early Hemingfordian (early Miocene) Pollack Farm local fauna; first Tertiary land mammals described from Delaware. Delaware Geological Survey Special Publication 21:153-173 [J. Alroy/J. Alroy/M. Uhen]
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]
2070		T. S. Kelly and E. B. Lander. 1988. Biostratigraphy and Correlation of Hemingfordian and Barstovian Land Mammal Assemblages, Caliente Formation, Cuyama Valley Area, California. In W. J. M. Bazeley (ed.), Tertiary Tectonics and Sedimentation in the Cuyama Basin, San Luis Obispo, Santa Barbara, and Ventura Counties, California 1-19 [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]
51726		D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]