Steele Brothers Gravel Pit (Pleistocene of Canada)

Also known as Fort Saskatchewan

Where: Alberta, Canada (53.7° N, 113.3° W: paleocoordinates 53.7° N, 113.3° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• specimen was believed to be Late Pleistocene by Harington (1975) but directly AMS dated by Hills and Wilson at "30 570 +/- 240 14C yrs BP" and said to be "Middle Wisconsinan (pre-Late Glacial maximum)" and "ultimately derived from the Empress Formation" by reworking

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; ferruginous sandstone

• "reportedly derived from a heavily iron and manganese oxide-stained sand bed near the base of a 6.1 m unit of quartize-rich gravels with angular shield erratics and woody detritus"

Size class: macrofossils

• "posterior cranium"

Collection methods: surface (float),

• "specimen was not observed in situ"

•University of Alberta collection

Primary reference: L. V. Hills and M. C. Wilson. 2003. Helmeted muskox (Bootherium bombifrons) from near Fort Saskatchewan, Alberta: dating evidence for redeposition in Late Pleistocene alluvium. GĂ©ographie physique et Quaternaire 57(2-3):237-240 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 93727: authorized by John Alroy, entered by John Alroy on 30.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• specimen originally described by Harington (1975)
Mammalia
 Artiodactyla - Bovidae
Bootherium bombifrons Harlan 1825 antelope