John Day (non-specific): Arikareean, Oregon
collected by J. L. Wortman

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Loxocemidae
Ogmophis oregonensis n. gen., n. sp. Cope 1844
1 specimen
AMNH (lost), four dorsal vertebrae and possibly a cervical
Reptilia - Testudines - Testudinidae
Stylemys capax n. sp. Hay 1908
Hay 1908
AMNH 1357 (holotype), a complete shell (Hay 1908, figs. 498, 499)
Stylemys conspecta n. sp. Hay 1908
Hay 1908
synonym of Stylemys capax
AMNH 1358 (holotype), a complete shell (Hay 1908, figs. 500, 501)
Stylemys oregonensis Leidy 1872
Cope 1879
nomen dubium belonging to Stylemys
Mammalia - Perissodactyla - Rhinocerotidae
Aceratherium pacificum
Cope 1879
Mammalia - Perissodactyla - Equidae
Anchitherium brachylophum
Cope 1879
Anchitherium longicriste
Cope 1879
Anchitherium equiceps Cope 1878
Cope 1879
recombined as Miohippus equiceps
Miohippus primus n. sp. Osborn 1918
Osborn 1918
Mammalia - Entelodontidae
Boochoerus humerosus n. gen., n. sp. Cope 1879
Cope 1879
recombined as Daeodon humerosus
Daeodon shoshonensis Cope 1878
Cope 1879
Elotherium imperator Leidy 1873
Cope 1879
nomen dubium belonging to Archaeotherium
Mammalia - Agriochoeridae
Merycopater guyotianus (Cope 1878)
Cope 1879
recombined as Agriochoerus guyotianus
Mammalia - Hypertragulidae
Hypertragulus calcaratus (Cope 1873)
Cope 1879
Mammalia - Leptomerycidae
Leptomeryx evansi Leidy 1853
Cope 1879
Mammalia - Tayassuidae
Palaeochoerus pristinus (Leidy 1873)
Cope 1879
synonym of Thinohyus lentus
Palaeochoerus socialis (Marsh 1875)
Cope 1879
recombined as Marshochoerus socialis
Mammalia
Palaeochoerus condoni
Cope 1879
Mammalia - Merycoidodontidae
Eucrotaphus occidentalis (Marsh 1873)
Cope 1879
recombined as Eporeodon occidentalis
Eucrotaphus superbus (Leidy 1870)
Cope 1879
recombined as Promerycochoerus superbus
Merycochoerus temporalis Bettany 1876
Cope 1879
synonym of Promerycochoerus superbus
Merycochoerus leidyi Bettany 1876
Cope 1879
recombined as Promerycochoerus leidyi
Mammalia - Camelidae
Poebrotherium sternbergii n. sp. Cope 1879
Cope 1879
recombined as Gentilicamelus sternbergi
Mammalia - Carnivora - Nimravidae
Hoplophoneus brachyops (Cope 1878)
Cope 1879
recombined as Nimravus brachyops
Machaerodus strigidens Cope 1878
Cope 1879
recombined as Hoplophoneus strigidens
Mammalia - Carnivora - Canidae
Canis geismarianus Cope 1878
Cope 1879
Enhydrocyon stenocephalus n. gen., n. sp. Cope 1879
Cope 1879
Enhydrocyon basilatus n. sp. Cope 1879
Cope 1879
Canis gregarius Cope 1873
Cope 1879
recombined as Hesperocyon gregarius
Mammalia - Carnivora - Amphicyonidae
Canis lippincottianus Cope 1873
Cope 1879
nomen dubium belonging to Daphoenus
Canis hartshornianus Cope 1873
Cope 1879
recombined as Daphoenus hartshornianus
Canis cuspigerus Cope 1878
Cope 1879
recombined as Paradaphoenus cuspigerus
Temnocyon altigenis Cope 1878
Cope 1879
Mammalia - Rodentia - Allomyidae
Meniscomys multiplicatus Cope 1878
Cope 1879
synonym of Allomys nitens
Mammalia - Rodentia - Entoptychidae
Entoptychus planifrons Cope 1878
Cope 1879
Entoptychus cavifrons Cope 1878
Cope 1879
Entoptychus crassiramis Cope 1878
Cope 1879
Mammalia - Rodentia - Geomyidae
Pleurolicus sulcifrons Cope 1878
Cope 1879
Mammalia - Rodentia - Castoridae
Steneofiber gradatus Cope 1878
Cope 1879
recombined as Capacikala gradatus
Steneofiber ? nebrascensis Leidy 1856
Cope 1879
recombined as Palaeocastor nebrascensis
Mammalia - Rodentia - Aplodontidae
Meniscomys hippodus Cope 1878
Cope 1879
Mammalia - Lagomorpha - Leporidae
Palaeolagus haydeni Leidy 1856
Cope 1879
see common names

Geography
Country:United States State/province:Oregon County:Grant
Coordinates: 44.7° North, 119.6° West (view map)
Paleocoordinates:44.4° North, 110.7° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
10 m.y. bin:Cenozoic 4-5
Key time interval:Arikareean
Age range of interval:29.50000 - 18.50000 m.y. ago
Stratigraphy
Formation:John Day
Local order:bottom to top
Stratigraphic resolution:member
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:taxonomic analysis
Collectors:J. L. Wortman
Metadata
Also known as:Near the John Day River
Database number:180202
Authorizer:P. Barrett, J. Marcot, B. Allen, E. Vlachos Enterer:T. Cleary, E. Vlachos, J. Marcot, B. Allen
Modifier:T. Cleary Research group:vertebrate
Created:2016-07-11 11:56:52 Last modified:2016-07-11 11:56:58
Access level:the public Released:2016-07-11 11:56:52
Creative Commons license:CC BY
Reference information

Primary reference:
14699. C. W. Gilmore. 1938. Fossil snakes of North America. Geological Society of America Special Paper (9)1-96 [J. Head/J. Head]

Secondary references:

53289 E. D. Cope. 1879. Observations on the faunae of the Miocene Tertiaries of Oregon. Bulletin of the United States Geological and Geographical Survey 5(2):55-69 [M. Carrano/M. Carrano]
14442ETE O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 [M. Carrano/M. Carrano/M. Carrano]
2702 H. F. Osborn. 1918. Equidae of the Oligocene, Miocene, and Pliocene of North America, iconographic type revision. Memoirs of the American Museum of Natural History 2(1):1-217 [J. Alroy/J. Alroy/J. Marcot]