Gaowangou (locality 64017), Niusimiao, Weinan, Shaanxi (Eocene to of China)

Where: shaanxi, China (34.5° N, 109.5° E: paleocoordinates 35.3° N, 105.3° E)

• coordinate based on political unit

When: upper Member (Bailuyuan Formation), Late/Upper Eocene to Late/Upper Eocene (37.2 - 28.4 Ma)

• There are three members in the Bailuyuan Formation, the upper, middle and lower. Fossils have been found in the upper and lower members, which are some 200m apart. The fauna in the upper member is found in large sandstone concretions predominantly in mudstones interbedded with white coarse-grained sandstones.

Environment/lithology: terrestrial; white sandstone

• 'a concretion in the white sandstones.'

Size class: macrofossils

Preservation: concretion

Collection methods: Site found by the Lantian research team of the Institute of Vertebrate Palaeontology and Palaeoanthropology (IVPP).

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 42749: authorized by Alan Turner, entered by Hannah O'Regan on 05.08.2004, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perissodactyla - Brontotheriidae
Brontotheriidae indet. Marsh 1873 brontothere
 Perissodactyla - Amynodontidae
Amynodon sp. Marsh 1877 odd-toed ungulate
Sianodon gaowangouensis n. sp. Li 2003 odd-toed ungulate
IVPP V13381 - type