Rose Creek South (Miocene of the United States)

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

• technically a part of the Haystack Valley Mbr. of earlier authors, but collections are new and from higher levels
Mammalia
 Perissodactyla - Equidae
Parahippus pawniensis Gidley 1907 anchitheriine horse
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821 rhinoceros
 Perissodactyla - Chalicotheriidae
Moropus sp. Marsh 1877 chalicothere