Where: Liaoning, China (41.6° N, 121.0° E: paleocoordinates 44.3° N, 122.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• "the lower, sandy portion ot the Yixian Formation"

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; sandstone

Size class: macrofossils

Collection methods: mechanical,

Primary reference: S. H. Hwang, M. A. Norell, Q. Ji and K.-Q. Gao. 2004. A new troodontid from the lower Yixian Formation of China and its affinities to Mongolian troodontids. Journal of Vertebrate Paleontology 24(3, suppl.):73A-74A [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 83249: authorized by Matthew Carrano, entered by Matthew Carrano on 13.08.2008

Creative Commons license: CC BY (attribution)