ammonites
Xiaosanjiazi Village, Lamadong (Cretaceous to of China)

Also known as Jianchang

Where: Liaoning, China (40.7° N, 119.7° E: paleocoordinates 43.6° N, 120.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Yixian Formation (Jehol Group), Barremian to Barremian (130.0 - 112.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; gray lithology not reported

Size class: macrofossils

Preservation: adpression, soft parts

Collected by H. Zhu, Q. Wang

Collection methods: quarrying, mechanical,

• Made available for study by Ms. Zhu Haifen, Henan Geological Museum. Ningyuansaurus in the Xingcheng Confuciusornis Museum and donated by Mr. Wang Qiuwu.

Primary reference: J. -C. Lü, H. -Y. Pu, L. Xu, Y. Wu, and X. Wei. 2012. Largest toothed pterosaur skull from the Early Cretaceous Yixian Formation of western Liaoning, China, with comments on the family Boreopteridae. Acta Geological Sinica 86(2):287-293 [R. Benson/R. Benson/R. Butler] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127186: authorized by Roger Benson, entered by Roger Benson on 02.05.2012, edited by Jonathan Tennant and Matt Carrano

Creative Commons license: CC BY (attribution)