Where: Guangdong, China (22.2° N, 112.5° E: paleocoordinates 31.8° N, 118.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Upper Member (Jinji Formation), Semicostatum to Semicostatum (196.5 - 189.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone and lithified siltstone

Size class: macrofossils

Preservation: mold/impression

Reposited in the NIGPAS

Primary reference: J. H. Chen. 1982. Liassic bivalve fossils from Mount Jinji of Guangdong. Acta Palaeontologica Sinica 21:404-416 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 150395: authorized by Matthew Clapham, entered by Matthew Clapham on 08.09.2013

Creative Commons license: CC BY (attribution)