Also known as SDSM V-733 in part; Main Quarry; Middle Quarry; Springer Unit 4

Where: Gregory County, South Dakota (43.3° N, 99.3° W)

• Paleocoordinates: 46.5° N, 92.4° W (Wright 2013)

• coordinate based on political unit

When: Barstovian (16.3 - 12.5 Ma)

Environment/lithology: terrestrial; lithology not reported

Reposited in the SDSM

Primary reference: M. Green. 1977. A new species of Plesiosorex Mammalia, Insectivora from the Miocene of South Dakota. Neues Jahrbuch fur Geologie unde Palaeontologie 1977(4):189-198 [J. Alroy/J. Alroy/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18160: authorized by John Alroy, entered by John Alroy on 27.09.1993

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