Where: Pima County, Arizona (32.5° N, 112.3° W: paleocoordinates 32.5° N, 112.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• multiple AMS dates not in stratigraphic order suggest the Volcanic Debris Layer (a.k.a. Bed 5) "accumulated between approximately 8800 B.P. and 10,500 B.P." (i.e., in the earliest Holocene), and all cultural artifacts and apparently imported Laevicardium shells are thought to be of this age, but most or all faunal remains are thought to have been reworked from the immediately "underlying [small pebble] conglomerate deposit rich in horse remains"

• group of beds-level stratigraphic resolution

Environment/lithology: cave; lithified, tuffaceous, silty sandstone and sandy carbonate

Size class: macrofossils

Collected by E. Haury, W. Bailey, J. Hayden in 1941, 1942

Collection methods: quarrying

Primary reference: B. B. Huckell and C. V. Haynes, Jr. 2003. The Ventana Complex: new dates and new ideas on its place in early Holocene western prehistory. American Antiquity 68(2):353-371 [J. Alroy/J. Alroy]more details

Purpose of describing collection: archaeological analysis

PaleoDB collection 93244: authorized by John Alroy, entered by John Alroy on 08.01.2010

Creative Commons license: CC BY (attribution)