Round Mountain Quarry: Late/Upper Clarendonian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Carnivora - Canidae
Leptocyon vafer (Leidy 1858)
Tedford et al. 2009
Leptocyon matthewi Tedford et al. 2009
Tedford et al. 2009
Epicyon sp. (Leidy 1858)
    = Epicyon cf. saevus Leidy 1858
Alroy 2002
replaces ID of Tedford 1981: confirmed by Wang et al. 1999
Aelurodon sp. Leidy 1858
    = Aelurodon cf. taxoides Hatcher 1894
Alroy 2002
replaces ID of Tedford 1981: confirmed by Wang et al. 1999
Mammalia - Perissodactyla - Equidae
Cormohipparion occidentale (Leidy 1856)
Mihlbachler et al. 2011
Supplemental Table S1
Griphippus cf. gratus (Leidy 1869)
    = Pseudhipparion gratum Leidy 1869
Alroy 2002
replaces ID of Tedford 1981
Pliohippus sp. Marsh 1874
small
Pliohippus cf. pernix Marsh 1874
Megahippus cf. matthewi (Barbour 1914)
Mammalia - Perissodactyla - Rhinocerotidae
Teleoceras brachyrhinum Prothero 2005
Prothero 2005
Mammalia - Antilocapridae
Cosoryx cerroensis n. sp. (Frick 1937)
original and current combination Cosoryx (Subcosoryx) cerroensis
see Frick 1937: "C. sp." of Tedford 1981
Paramoceros marthae Frick 1937
    = Ramoceros marthae Frick 1937
Alroy 2002
see Frick 1937; probably includes R. sp. of Tedford 1981
Mammalia - Gelocidae
Pseudoceras sp. Frick 1937
    = Pseudoceras klausi n. sp. Frick 1937
Frick 1937
recombined as Floridameryx klausi
Mammalia - Camelidae
Hemiauchenia sp. Gervais and Ameghino 1880
Michenia sp. Frick and Taylor 1971
Lozinsky and Tedford 1991
a "similar taxon" to Michenia yavapaiensis; not clear why this is omitted by Tedford and Barghoorn; probably includes "M. cf. browni" of Latorre et al. 1997
see common names

Geography
Country:United States State/province:New Mexico County:Rio Arriba
Coordinates: 36.5° North, 107.0° West (view map)
Paleocoordinates:37.0° North, 104.5° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5-6
*Period:Tertiary *Local age/stage:Late/Upper Clarendonian
Key time interval:Late/Upper Clarendonian
Age range of interval:12.50000 - 9.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:referred Chamita
Local section:Espan Local bed:4
Local order:bottom to top
Stratigraphy comments: said to be late Clarendonian
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Taxonomic list comments:see also Tedford 1981
the "Santa Clara-Battleship Mountain" fauna apparently spans the "late late Barstovian" to "earliest Hemphillian" interval and hence is omitted
probably includes the "10.7 +/- 0.7 Ma" material of Latorre et al. 1997
Metadata
Database number:19528
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2002-06-03 03:27:43
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3380. R. H. Tedford and S. F. Barghoorn. 1993. Road Log Neogene geology of the Española Basin, New Mexico. New Mexico Museum of Natural History Bulletin 2:169-178 [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]
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]
2281 R. P. Lozinsky and R. H. Tedford. 1991. Geology and Paleontology of the Santa Fe Group, Southwestern Albuquerque Basin, Valencia County, New Mexico. Bulletin of the New Mexico Bureau of Mines and Mineral Research 132:1-35 [J. Alroy/J. Alroy/M. Uhen]
61275 M. C. Mihlbachler, F. Rivals, N. Solounias and G. M. Semprebon. 2011. Dietary Change and Evolution of Horses in North America. Science 331:1178-1181 [J. Marcot/J. Marcot]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [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]