Frank Kostelecky Ranch: Orellan, North Dakota

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Perissodactyla - Rhinocerotidae
Subhyracodon occidentalis (Leidy 1850)
Prothero 2005
Mammalia - Carnivora - Canidae
Hesperocyon gregarius (Cope 1873)
12 and 15 ft above White Marker Zone; I presume this is low enough to be the local "early Orellan"
Mammalia - Ungulata - Camelidae
Poebrotherium wilsoni Leidy 1847
Prothero 1996
"Kostelecky Ranch, Stark Co. ... early Orellan"
see common names

Country:United States State/province:North Dakota County:Stark
Coordinates: 46.9° North, 102.8° West (view map)
Paleocoordinates:48.0° North, 94.2° West
Basis of coordinate:based on political unit
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Orellan
Age range of interval:33.90000 - 33.30000 m.y. ago
* legacy (obsolete) database fields
Lithology and environment
Environment:terrestrial indet.
Modes of preservation:body
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Taxonomic list comments:about 3 mi N of Fitterer Ranch
"Hyracodon nebraskensis" Prothero 1996e: said to be late Orellan
Database number:17125
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:J. Alroy Research group:vertebrate
Created:1998-09-21 00:00:00 Last modified:2006-09-13 00:34:39
Access level:the public Released:1998-09-21 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

6226. X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

28055% 6280D. R. Prothero. 1996. Camelidae. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 609-651 [J. Alroy/J. Alroy/J. Marcot]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]