Merychippus Draw (Miocene of the United States)
Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.1° N, 99.9° W)
• coordinate based on political unit
When: middle Member (Sheep Creek Formation), Hemingfordian (20.4 - 16.0 Ma)
Environment/lithology: terrestrial
Primary reference: M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 17968: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• see Fig. 4C
SCA = Sheep Creek Ash
types of "Merychippus isonesus secundus" and "M. i. quartus" are indeterminate: from 50' and 6-10' below SCA
SCA = Sheep Creek Ash
types of "Merychippus isonesus secundus" and "M. i. quartus" are indeterminate: from 50' and 6-10' below SCA
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