Where: Liaoning, China (41.7° N, 120.8° E: paleocoordinates 46.1° N, 112.0° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Sunjiawan Formation, Cenomanian to Cenomanian (99.6 - 89.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: quarrying, mechanical,

Primary reference: J. Lü, Q. Ji, Y. Gao and Z. Li. 2007. A new species of the ankylosaurid dinosaur Crichtonsaurus (Ankylosauridae: Ankylosauria) from the Cretaceous of Liaoning Province, China. Acta Geologica Sinica 81(6):883-897 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91201: authorized by Matt Carrano, entered by Matt Carrano on 10.09.2009