Where: Heilongjiang, China (45.9° N, 132.4° E: paleocoordinates 50.4° N, 134.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Qihulin Formation (Longzhaogou Group), Barremian (129.4 - 125.0 Ma)

• Upper part of the Qihulin Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, black mudstone

Size class: macrofossils

Preservation: mold/impression

Reposited in the NIGPAS

Primary reference: M. Futakami, M. Matsukawa, P. J. Chen, Z. Y. Cao, and J. H. Chen. 1995. Barremian ammonites from the Longzhaogou Group in eastern Heilongjiang, northeast China. Journal of the Geological Society of Japan 101:79-85 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 198669: authorized by Matthew Clapham, entered by Matthew Clapham on 04.01.2019

Creative Commons license: CC BY (attribution)