Hollow Horn Bear Quarry: Clarendonian, South Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia - Castoridae
Prodipoides dividerus (Stirton 1935)
Korth 2007
Nothodipoides planus (Stirton 1935)
Korth 2007
Mammalia - Perissodactyla - Rhinocerotidae
Aphelops megalodus (Cope 1873)
Prothero 2005
Teleoceras major Hatcher 1894
Prothero 2005
Mammalia - Perissodactyla - Equidae
Nannippus sp. (Matthew 1926)
Hulbert 1989
pers. commun.: "A"
Cormohipparion occidentale (Leidy 1856)
Hulbert 1989
    = Hippotherium sp. Kaup 1832
Alroy 2002
pers. commun.
Pseudhipparion gratum (Leidy 1869)
Hulbert 1989
pers. commun.
Cormohipparion fricki Woodburne 2007
Woodburne 2007
Calippus placidus (Leidy 1869)
Hulbert 1989
pers. commun.
Calippus martini Hesse 1936
Hulbert 1989
pers. commun.
Protohippus supremus Leidy 1869
Hulbert 1989
pers. commun.
Mammalia - Camelidae
Hemiauchenia sp. Gervais and Ameghino 1880
Breyer 1983
Mammalia - Moschidae
Longirostromeryx wellsi (Matthew 1904)
Prothero 2008
Mammalia - Merycoidodontidae
Ustatochoerus profectus (Matthew and Cook 1909)
Schultz and Falkenbach 1941
    = Merychyus novomexicanus Frick 1929
Alroy 2002
invalid subgroup of Ustatochoerus medius
Mammalia - Carnivora - Amphicyonidae
Ischyrocyon sp. Matthew and Gidley 1904
Hunt 1998
Mammalia - Carnivora - Procyonidae
Arctonasua sp. Baskin 1982
Baskin 1982
"A. sp. B"
Mammalia - Carnivora - Canidae
Leptocyon matthewi Tedford et al. 2009
Tedford et al. 2009
Cynarctus crucidens Barbour and Cook 1914
Carpocyon robustus (Green 1948)
Paratomarctus euthos (McGrew 1935)
Epicyon saevus (Leidy 1858)
Munthe 1989
confirmed by Wang et al. 1999
Aelurodon taxoides Hatcher 1894
see common names

Geography
Country:United States State/province:South Dakota County:Todd
Coordinates: 43.2° North, 100.7° West (view map)
Paleocoordinates:43.6° North, 98.1° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
*Period:Tertiary
*International age/stage:Tortonian *Local age/stage:Middle Clarendonan
Key time interval:Clarendonian
Age range of interval:13.60000 - 10.30000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Ash Hollow
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Taxonomic list comments:equids: Hulbert 1989 pers. commun.915 F:AM specimens: Skinner and Johnson 1984
Metadata
Database number:18200
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:J. Alroy Research group:vertebrate
Created:1992-08-05 00:00:00 Last modified:2006-01-15 17:00:49
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
10285% 29740J. A. Baskin. 1982. Tertiary Procyoninae (Mammalia: Carnivora) of North America. Journal of Vertebrate Paleontology 2(1):71-93 [J. Alroy/J. Alroy/J. Alroy]
1131 J. A. Breyer. 1983. The Biostratigraphic Utility of Camel Metapodials. Journal of Paleontology 57(2) [J. Alroy/J. Alroy/J. Ju]
1952 R. C. Hulbert, Jr. 1989. Phylogenetic Interrelationships and Evolution of North American Late Equidae. In D. R. Prothero and R. M. Schoch (eds.), The Evolution of Perissodactyls [J. Alroy/J. Alroy/M. Uhen]
1977 R. M. Hunt, Jr. 1998. Amphicyonidae. 196-227 [J. Alroy/J. Alroy/J. Alroy]
57334 W. W. Korth. 2007. A new genus of beaver (Rodentia, Castoridae) from the miocene (Clarendonian) of North America and systematics of the Castoroidinae based on comparative cranial anatomy. Annals of Carnegie Museum 76(2) [J. Marcot/J. Marcot]
31434 W. W. Korth. 2007. The skull of Nothodipoides (Castoridae, Rodentia) and the occurrence of fossorial adaptations in beavers. Journal of Paleontology 81(6):1533-1537 [J. Alroy/J. Alroy]
6266 K. Munthe. 1989. The skeleton of Borophaginae (Carnivora, Canidae): Morphology and function. University of California Publications in Geological Sciences 133:1-115 [J. Alroy/J. Alroy/J. Alroy]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
51375 D. R. Prothero. 2008. Systematics of the musk deer (Artiodactyla: Moschidae: Blastomerycinae) from the Miocene of North America. In S. G. Lucas, G. S. Morgan, J. A. Spielmann, D. R. Prothero (eds.), Neogene Mammals 44:207-223 [J. Marcot/J. Marcot/J. Marcot]
3063 C. B. Schultz and C. H. Falkenbach. 1941. Ticholeptinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 79(1):1-105 [J. Alroy/J. Alroy/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]
45368 M. O. Woodburne. 2007. Phyletic diversification of the Cormohipparion occidentale complex (Mammalia; Perissodactyla, Equidae), Late Miocene, North America, and the origin of the Old World Hippotherium datum. Bulletin of the American Museum of Natural History 306(1):1-138 [P. Wagner/P. Wagner]