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 C. V. Haynes in 1961
Collection methods: quarrying,
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 93378: authorized by John Alroy, entered by John Alroy on 16.01.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Lepus sp. Linnaeus 1758 hare
Sylvilagus sp. Gray 1867 cottontail rabbit | |
Neotoma sp. Say and Ord 1825 pack rat | |
Marmota sp., "Citellus sp." = Spermophilus
Marmota sp. Frisch 1775 marmot
"Citellus sp." = Spermophilus Cuvier 1825 ground squirrel | |
Geomys sp. Rafinesque 1817 pocket gopher | |
Mustelidae indet. Fischer 1817 mustelid carnivore |