Also known as IVPP 85006; Huadian; Gonglangtou

Where: Jilin, China (43.0° N, 126.7° E: paleocoordinates 44.7° N, 119.9° E)

• coordinate stated in text

• small collection-level geographic resolution

When: III Member (Huadian Formation), Lutetian (47.8 - 41.3 Ma)

• "correlative with the latter part of the Uintan" or even younger based on mammalian stage of evolution (Beard and Wang 1991) or Middle Eocene based on "close resemblance between the fish fauna" and that of the Green River Formation, which is mostly Wasatchian and Bridgerian but ranges into the Duchesnean (Hou and Ericson 2002); Lutetian seems like the best compromise because it spans most or all of the Bridgerian and Uintan

• bed-level stratigraphic resolution

Environment/lithology: mire or swamp; shale and coal

Size class: macrofossils

Collected in 1984, 1985; reposited in the IVPP

• mammals were first discovered in 1984

Primary reference: L.-H. Hou and P. G. P. Ericson. 2002. A Middle Eocene shorebird from China. The Condor 104(4):896-899 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 71665: authorized by John Alroy, entered by John Alroy on 03.05.2007, edited by Philip Mannion and Terri Cleary

Creative Commons license: CC BY (attribution)