Also known as FLMNH NE 003; Sand Creek Ranch

Where: Sioux County, Nebraska (42.9° N, 103.6° W: paleocoordinates 44.2° N, 94.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Big Cottonwood Creek Member (Chadron Formation), Chadronian (37.2 - 33.9 Ma)

• "from the 'turtle-oreodont' zone in the boundary area between the Chadron Formation and the Orellan [sic] member of the Brule Formation" (assumed to be from the Chadron because locality is not "high")

• member-level stratigraphic resolution

Environment/lithology: fluvial; siliciclastic sediments

Size class: macrofossils

Collected by D. J. Ehret, B. J. MacFadden in 2001; reposited in the FLMNH

Primary reference: D. J. Ehret. 2007. Skeletochronology: a method for determing the individual age and growth of modern and fossil tortoises (Reptilia: Testudines). Bulletin of the Florida Museum of Natural History 47(2):49-72 [J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 99591: authorized by John Alroy, entered by John Alroy on 16.11.2010

Creative Commons license: CC BY (attribution)