Where: Grant County, Oregon (44.7° N, 119.6° W: paleocoordinates 44.6° N, 113.6° W)
• coordinate based on political unit
When: Rose Creek Member (John Day Formation), Early/Lower Hemingfordian (20.4 - 16.0 Ma)
• member-level stratigraphic resolution
Environment/lithology: terrestrial; gray, green siltstone and conglomerate
Size class: macrofossils
Primary reference: 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]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 170310: authorized by Jonathan Marcot, entered by Jonathan Marcot on 18.06.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Parahippus pawniensis Gidley 1907 anchitheriine horse | |
Rhinocerotidae indet. Gray 1821 rhinoceros | |
Moropus sp. Marsh 1877 chalicothere |