Where: Custer County, South Dakota (43.8° N, 103.1° W: paleocoordinates 44.6° N, 97.5° W)

• coordinate based on political unit

When: Late/Upper Oligocene (28.4 - 23.0 Ma)

• "The above skull is the holotype of "Cyclopidius (Chelonocephalus) schucherti"

•of Thorpe. The type locality was given as "near Hermosa, South Dakota," and the geologic horizon as "Middle Miocene (Sheep Creek)." The Hermosa area has been visited by the present writers and Morris F. Skinner. No deposits were recognized that could be attributed to Sheep Creek age. The specimen is a typical example of Leptauchenia decora from the upper Oligocene deposits of South Dakota and Nebraska. (See discussion, p. 278.)"

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: M. R. Thorpe. 1937. The Merycoidodontidae, an extinct group of ruminant mammals. Peabody Museum of Natural History Memoir 3(4):1-428 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17951: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)