Ma Kai Valley (Pleistocene of China)

Where: Yunnan, China (25.0° N, 103.8° E: paleocoordinates 24.8° N, 103.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Pleistocene (2.6 - 0.8 Ma)

• indicated on chart as "Lower" Pleistocene, based on faunal correlations

Environment/lithology: eolian; fine-grained, red claystone

• "Pleistocene valley fill... very fine red clay, perhaps of aeolian origin"

Size class: macrofossils

Reposited in the AMNH

• collected by Walter Granger in a single day during the winter of 1926 - 1927

Primary reference: E. H. Colbert. 1940. Pleistocene mammals from the Ma Kai Valley of northern Yunnan, China. American Museum Novitates 1099:1-10 [J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 71055: authorized by John Alroy, entered by John Alroy on 15.04.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Perissodactyla - Rhinocerotidae
Rhinoceros sp. Linnaeus 1758 one-horned rhinoceros
 Perissodactyla - Equidae
Equus yunnanensis n. sp. Colbert 1940 horse
 Artiodactyla - Suidae
Sus sp. Linnaeus 1758 pig
 Artiodactyla - Cervidae
Cervus sp. Linnaeus 1758 deer
species A ("very probably one of the Rusa group"), 7 specimens, and species B ("smaller"), 11 specimens
 Artiodactyla - Bovidae
Bos sp. Linnaeus 1758 ox
"Bos (Bibos) ? sp."
 Proboscidea - Elephantidae
Stegodon sp. Falconer 1857 elephant
Reptilia
 Testudines - Testudinidae
Testudinidae indet. Batsch 1788 turtle
"tortoise"