Where: Liaoning, China (41.8° N, 120.7° E: paleocoordinates 44.9° N, 121.5° E)

• coordinate based on political unit

• local area-level geographic resolution

When: 3 Member (Yixian Formation), Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)

• authors use "Jiulongsong Member" of "Chaomidianzi Formation", but this is lower part of Yixian

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; siltstone

Size class: macrofossils

Preservation: adpression, soft parts

Primary reference: Q. Ji and S.-A. Ji. 1997. [Protarchaeopteryx gen. nov.—a new genus of Archaeopterygidae in China]. Chinese Geology 238(3):38-41 [M. Carrano/M. Carrano] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 10764: authorized by Matt Carrano, entered by Matt Carrano on 19.06.2001

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)