Where: shaanxi, China (34.2° N, 109.5° E: paleocoordinates 34.1° N, 108.1° E)

• coordinate based on nearby landmark

When: Lantian Formation, Turolian (8.7 - 5.3 Ma)

• Probably Turolian - overlies the Bahe Formation which is Vallesian (based on Qiu, 1990), previously thought to be Pliocene. The Lantian Formation is 'composed of dark red, dark tan clays and tan-yellow sandy conglomerates. The clays contain large amounts of carbonate concretions. After weathering, surficial colour changes to gray-yellow or grey white and the clay units are perched as spongy hummocks.' Sedimentary thickness is generally between 10m - 40m and reaching nearly 70m at most.

Environment/lithology:

Size class: macrofossils

Collection methods: Belongs to the 'Hipparion fauna' in the broadest sense.

Primary reference: M. Chow. 1978. Tertiary mammal faunas of the Lantien Region, Shaanxi Province. Professional papers on Stratigraphy and Paleontology, Geological Publishing House, Peking. 7:98-108 [A. Turner/H. O'Regan/H. O'Regan]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 42860: authorized by Alan Turner, entered by Hannah O'Regan on 06.08.2004

Creative Commons license: CC BY (attribution)