Where: Sioux County, Nebraska (42.9° N, 103.9° W: paleocoordinates 43.7° N, 98.0° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Monroe Creek Formation, Monroecreekian (26.3 - 24.8 Ma)
• "Upper Oligocene Monroe Creek beds... about 100 feet above the top of the Brule"
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by Cook
Primary reference: H. J. Cook. 1934. New artiodactyls from the Oligocene and Lower Miocene of Nebraska. American Midland Naturalist 15(2):148-165 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 74154: authorized by John Alroy, entered by John Alroy on 25.07.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Hypertragulus sequens n. sp.
Hypertragulus sequens n. sp. Cook 1934 ruminant |