Picture Gorge 36: Early/Lower Hemingfordian, Oregon

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Perissodactyla - Equidae
Parahippus pawniensis Gidley 1907
Hunt and Stepleton 2004
Mammalia - Perissodactyla - Chalicotheriidae
Moropus oregonensis (Leidy 1873)
    = Moropus sp. Marsh 1877
Coombs and Hunt 2015
Mammalia - Moschidae
Parablastomeryx schultzi Frick 1937
Hunt and Stepleton 2004
synonym of Pseudoblastomeryx advena
Parablastomeryx sp. Frick 1937
Hunt and Stepleton 2004
Mammalia - Palaeomerycidae
Barbouromeryx sp. Frick 1937
Hunt and Stepleton 2004
Mammalia - Camelidae
cf. Protolabis sp. Cope 1876
Hunt and Stepleton 2004
Paratylopus sp. (Matthew 1904)
Hunt and Stepleton 2004
original and current combination Miolabis (Paratylopus)
Mammalia - Merycoidodontidae
Merycochoerus magnus Loomis 1924
Lander and Lindsay 2011
Mammalia - Carnivora - Amphicyonidae
Daphoenodon (Borocyon) robustum (Peterson 1910)
Hunt 2009
cf. Amphicyon sp. Lartet 1836
Hunt and Stepleton 2004
    = Amphicyon cf. galushai Hunt 2003
Coombs and Hunt 2015
Mammalia - Rodentia - Mylagaulidae
Mylagaulodon sp. Sinclair 1903
Hunt and Stepleton 2004
Mammalia - Rodentia - Castoridae
cf. Hystricops sp. (Leidy 1858)
Hunt and Stepleton 2004
original and current combination Hystrix (Hystricops)
see common names

Geography
Country:United States State/province:Oregon County:Grant
Coordinates: 44.7° North, 119.6° West (view map)
Paleocoordinates:44.5° North, 113.6° West
Basis of coordinate:stated in text
Altitude:884 meters
Time
Period:Neogene Epoch:Miocene
Stage:Burdigalian 10 m.y. bin:Cenozoic 5
Key time interval:Early/Lower Hemingfordian
Age range of interval:18.50000 - 16.30000 m.y. ago
Stratigraphy
Formation:John Day Member:Rose Creek
Lithology and environment
Primary lithology:pebbly,tuffaceous conglomerate
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Also known as:UCMP V76124; "Drees"; JDNM-49 Bone Creek; UCMP V5954
Database number:167866
Authorizer:J. Marcot Enterer:J. Marcot
Modifier:J. Marcot Research group:vertebrate
Created:2015-04-04 22:42:08 Last modified:2015-04-04 22:49:12
Access level:the public Released:2015-04-04 22:42:08
Creative Commons license:CC BY
Reference information

Primary reference:
4181. M. C. Coombs, R. M. Hunt, Jr., E. Stepleton, L. B. Albright, III, and T. J. Fremd. 2001. Stratigraphy, chronology, biogeography, and taxonomy of early Miocene small chalicotheres of North America. Journal of Vertebrate Paleontology 21(3):607-620 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

58319 M. C. Coombs and R. M. Hunt, Jr. 2015. New material of Moropus (Perissodactyla, Chalicotheriidae, Schizotheriinae) from the early Hemingfordian Rose Creek Member of the John Day Formation, Oregon, U.S.A. Journal of Vertebrate Paleontology 35(6):e100992 [J. Marcot/J. Marcot/M. Uhen]
54871 R. M. Hunt, Jr. 2009. Long-Legged Pursuit Carnivorans (Amphicyonidae, Daphoeninae) From the Early Miocene of North America. Bulletin of the American Museum of Natural History 318:1-95 [J. Marcot/J. Marcot]
9853 R. M. Hunt, Jr. and E. Stepleton. 2004. Geology and paleontology of the upper John Day beds, John Day river valley, Oregon: lithostratigraphic and biochronologic revision in the Haystack Valley and Kimberly areas (Kimberly and Mt. Misery quadrangles). Bulletin of the American Museum of Natural History 282:1-90 [J. Alroy/J. Alroy/J. Alroy]
51640 E. B. Lander and E. H. Lindsay. 2011. Merychyus calaminthus (Mammalia, Artiodactyla, Oreodontidae) of probable early late Arikareean (late Oligocene to late early Miocene) age from the lower part of the Chalk Canyon Formation, Maricopa and Yavapai counties, central Arizona. Journal of Vertebrate Paleontology 31(1):215-226 [J. Marcot/J. Marcot/M. Uhen]