East Sand Quarry: Early/Lower Barstovian, Nebraska

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Carnivora - Canidae
Tomarctus brevirostris Cope 1873
Wang et al. 1999
"Horizon C, East Sand Quarry"
Tomarctus hippophaga (Matthew and Cook 1909)
Wang et al. 1999
Mammalia - Merycoidodontidae
Merychyus relictus (Matthew and Cook 1909)
see Schultz and Falkenbach 1947
Mammalia - Leptomerycidae
Pseudoparablastomeryx scotti (Frick 1937)
described by Taylor and Webb 1976
Mammalia - Perissodactyla - Equidae
Scaphohippus sumani (Merriam 1915)
Pagnac 2006
Acritohippus isonesus (Cope 1889)
Mihlbachler et al. 2011
Supplemental Table S1
Merychippus insignis Leidy 1856
Mihlbachler et al. 2011
Supplemental Table S1
Mammalia - Perissodactyla - Rhinocerotidae
Teleoceras medicornutum Osborn 1904
Prothero 2005
Aphelops megalodus (Cope 1873)
Prothero 2005
see common names

Geography
Country:United States State/province:Nebraska County:Sioux
Coordinates: 42.4° North, 103.8° West (view map)
Paleocoordinates:43.0° North, 100.6° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
*Period:Tertiary
Key time interval:Early/Lower Barstovian
Age range of interval:16.30000 - 12.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Olcott Member:subcycle 2
Local section:Snake Local bed:4
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:Chan. D.; Princeton's Locality 1000C; Wilson's Quarry No. 9
Database number:17903
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:G. Varnham Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2022-04-27 08:16:15
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

3175. M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

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]
31462 D. Pagnac. 2006. Scaphohippus, a new genus of horse (Mammalia: Equidae) from the Barstow Formation of California. Journal of Mammalian Evolution 13(1):37-61 [J. Alroy/J. Alroy]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/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]