Lujiatun Maotherium locality (Cretaceous to of China)

Where: Liaoning, China (41.6° N, 120.9° E: paleocoordinates 44.3° N, 122.8° E)

• 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)

• "site [is] dated to be 123.2 +/- 0.1 million years old" (= early Aptian)

Environment/lithology: terrestrial; lithified lithology not reported

• not a word said, but clearly lithified based on preservation of specimen

Size class: macrofossils

Collection methods: Henan Geological Museum collection

Primary reference: Q. Ji, Z.-X. Luo, X. Zhang, C.-X. Yuan, and L. Xu. 2009. Evolutionary Development of the Middle Ear in Mesozoic Therian Mammals. Science 326:278-281 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92147: authorized by John Alroy, entered by John Alroy on 02.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• possibly the same as 53493 or some other Lujiatun collection, but the exact coordinate is slightly off
Mammalia
 Theriamorpha - Zhangheotheriidae
Maotherium asiaticus n. sp. Ji et al. 2009 mammal
HGM 41H-III-0321