Where: Hebei, China (41.8° N, 116.5° E)

• Paleocoordinates: 40.8° N, 125.2° E (Wright 2013)

• coordinate stated in text

• small collection-level geographic resolution

When: Yixian Formation (Jehol Group), Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)

• dates based on correlations with beds in Liaoning Province

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - large; gray lithology not reported

Size class: macrofossils

Preservation: adpression

Collection methods: surface (in situ), mechanical,

Primary reference: Z.-X. Luo, P. Chen, G. Li and M. Chen. 2007. A new eutriconodont mammal and evolutionary development in early mammals. Nature 446:288-293 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82758: authorized by Matthew Carrano, entered by Matthew Carrano on 01.08.2008

Creative Commons license: CC0 (CC0)