Where: Bureau County, Illinois (41.5° N, 89.7° W: paleocoordinates 41.5° N, 89.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• "the sedimentary sequence was a lower blue clay (marl) with an upper peat color" with Cervalces apparently coming from the peat and Megalonyx from the clay, but most other specimens of unknown provenance

•best AMS 14C dates of on "highly purified bone collagen" are "11,405 +/- 50 14C yr B.P." (Cervalces) and "11,430 +/- 60 14 C yr B.P.... and 11,485 +/- 40" (Meglonyx)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; blue claystone and peat

Size class: macrofossils

Collected by D. Lang, W. Luzardi, A. Fuhrmann in 1989, 1990

Collection methods: salvage,

• Illinois State Museum collection

•specimens recovered "while dredging a pond"

Primary reference: B. W. Schubert, R. W. Graham, H. G. McDonald, E. C. Grimm, and T. W. Stafford, Jr. 2004. Latest Pleistocene paleoecology of Jefferson’s ground sloth (Megalonyx jeffersonii) and elk-moose (Cervalces scotti) in northern Illinois. Quaternary Research 61:231-240 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 93209: authorized by John Alroy, entered by John Alroy on 07.01.2010

Creative Commons license: CC BY (attribution)