Parahippus Level ( of the United States)

Where: Goshen County, Wyoming (42.0° N, 104.2° W: paleocoordinates 42.9° N, 99.2° W)

• coordinate based on political unit

When: Marsland Formation (Hemingford Group), Harrisonian (24.8 - 20.4 Ma)

• = Upper Harrison beds

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: E. M. Schlaikjer. 1935. Contributions to the Stratigraphy and Palaeontology of the Goshen Hole Area, Wyoming. III. A New Basal Oligocene Formation. Bulletin of the Museum of Comparative Zoology 76(3):71-93 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 17817: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• SW 1/4 sec 10 T 24N R 65W
"500 feet above the Brule-lower Harrison contact"
Mammalia
 Rodentia - Castoridae
Castoridae indet.1 Gray 1821 beaver
 Perissodactyla - Tapiridae
Miotapirus harrisonensis n. sp.2 Schlaikjer 1937 tapir
 Perissodactyla - Equidae
Parahippus wyomingensis n. sp. Schlaikjer 1935 anchitheriine horse
 Ungulata - Merycoidodontidae
Merychyus minimus Peterson 1907 oreodont
about one mile NE of the main locality and "at exactly the same level"
 Ungulata - Camelidae
Camelidae indet.1 Gray 1821 camel