Olorgesailie - Member 7 (Pleistocene of Kenya)

Also known as M6/7s, LM7ds, UM7p

Where: Kenya (1.6° S, 36.4° E: paleocoordinates 1.6° S, 36.4° E)

• coordinate estimated from map

When: 7 Member (Olorgesailie Formation), Pleistocene (2.6 - 0.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: diatomaceous, pebbly, gray, white, sandy sandstone and diatomaceous, white siltstone

• M6/7s: channel deposit

•LM7ds: fluctuating lacustrine and fluvial

•UM7p: lake regression and the formation of a stable land surface (Potts 1999)

• M6/7s: "a complex of whitish grey channel sands, diatomaceous gravels, and sandy overbank deposits, 10-100cm thick"

•LM7ds: "20-40cm of white-buff diatomaceous silts immediately overlying M6/7s"

•UM7p: "A well-developed greenish brown paleosol 5-100cm thick" (Potts 1999)

Size class: macrofossils

Preservation: anthropogenic, bone collector

Collection methods: quarrying,

Primary reference: R. Potts, A. K. Behrensmeyer, and P. Ditchfield. 1999. Paleolandscape variation and Early Pleistocene hominid activities: Members 1 and 7, Olorgesailie Formation, Kenya. Journal of Human Evolution 37:747-788 [A. Behrensmeyer/V. Egerton/V. Egerton]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 38040: authorized by Anna Behrensmeyer, entered by Victoria Egerton on 01.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Primates - Cercopithecidae
Theropithecus oswaldi Andrews 1916 gelada
 Perissodactyla - Equidae
Equus sp. Linnaeus 1758 horse
 Proboscidea - Elephantidae
Elephas sp. Linnaeus 1758 elephant
 Artiodactyla - Bovidae
Bovidae indet. Gray 1821 antelope