Also known as Sandia Layer

Where: Sandoval County, New Mexico (35.3° N, 106.4° W: paleocoordinates 35.3° N, 106.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

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

• this unit was thought by Hibben to include "Sandia" (pre-Folsom) artifacts, to be entirely "Late Pleistocene," and to underlie and predate units F and H, but according to Haynes and Agogino 1986 it consists of material reworked "by rodent activity" from units F, H, and J and the "Sandia" artifacts are actually of Folsom age; there are nine 14C dates ranging from "1890+/-90" years B.P. on a "charcoal lump" to "13,700+/-400" on "large animal bone," but the youngest of six dates on bone is "8,520+/-300," so it is possible that none of the fossils are younger than Early Holocene

• group of beds-level stratigraphic resolution

Environment/lithology: cave; unlithified, shelly/skeletal, brown, conglomeratic siltstone

Size class: macrofossils

Preservation: midden

Collected by W. L. Bliss, F. C. Hibben in 1936-1941

Collection methods: quarrying,

• the original excavation was of the first three 23 meters of the cave

Primary reference: F. C. Hibben. 1941. Evidences of early occupation in Sandia Cave, New Mexico, and other sites in the Sandia-Manzano region. Smithsonian Miscellaneous Collections 99(23):1-44 [J. Alroy/J. Alroy]more details

Purpose of describing collection: archaeological analysis

PaleoDB collection 93377: authorized by John Alroy, entered by John Alroy on 16.01.2010

Creative Commons license: CC BY (attribution)