Quinn Draw (Middle Titanotherium Beds) (Eocene of the United States)
Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.6° N, 93.7° W)
• coordinate based on political unit
When: Chadron Formation, Chadronian (37.2 - 33.9 Ma)
• member-level stratigraphic resolution
Environment/lithology: terrestrial
Primary reference: H. F. Osborn. 1902. The four phyla of Oligocene titanotheres. Bulletin of the American Museum of Natural History 16(8):91-109 [J. Alroy/J. Alroy/T. Liebrecht]more details
PaleoDB collection 17013: authorized by John Alroy, entered by John Alroy on 18.10.1995, edited by Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
• relationship of unit to members of Clark and Beerbower 1967 unclear
Show authors, comments, and common names
| Mammalia | |
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Leptochoerus elegans3 Macdonald 1955 even-toed ungulate "Middle Member" at Quinn Draw, Pennington Co.
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| Reptilia | |
"Graptemys cordifera n. sp." = Echmatemys lativertebralis2
"Graptemys cordifera n. sp." = Echmatemys lativertebralis2 Cope 1877 turtle YPM VPPU 013838 (holotype), an almost complete shell (Clark 1937, figs. 11, 12)
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