Where: Ningxia, China (36.6° N, 105.7° E: paleocoordinates 37.3° N, 101.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Qingshuiying Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• Originally thought to be the upper part of the Hejiakouzi Formation, but now thought to be the upper part of the Qingshuiying Formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; silty mudstone

Size classes: macrofossils, mesofossils

Collected in 1992; reposited in the IVPP

Primary reference: B. Wang, Z. Yan, Y. Lu and G. Chen. 1994. Discovery of two mid-Tertiary mammalian faunas from Haiyuan, Ningxia, China. Vertebrata PalAsiatica 32(4):285-296 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 182895: authorized by Philip Mannion, entered by Philip Mannion on 28.11.2016

Creative Commons license: CC BY (attribution)