Shuitangzhai, Gejiu City (Triassic of China)

Where: Yunnan, China (23.4° N, 103.2° E: paleocoordinates 9.1° N, 94.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gejiu Formation, Anisian (247.2 - 242.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Primary reference: F. X. Guo. 1985. Fossil Bivalves of Yunnan 1-319 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98539: authorized by Matthew Clapham, entered by Matthew Clapham on 08.10.2010, edited by Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

 Myalinida - Myalinidae
Hemimenion cuneatum n. sp. Guo 1988 clam
Geological Museum of China, IVy0702 (holotype)
 Pectinida - Limidae
Plagiostoma gejiuensis n. sp. file clam
Plagiostoma dianense n. sp. Guo 1985 file clam
 Ostreida - Bakevelliidae
Bakevellia xinzhaiensis n. sp. Guo 1985 oyster
Bakevellia gejiuensis n. sp. Guo 1985 oyster
 Mytilida - Mytilidae
Modiolus gejiuensis n. sp. Guo 1985 mussel
 Cardiida - Kalenteridae
Pseudomyoconcha obesa n. sp. Guo 1985 clam
 Pholadomyida - Pholadomyidae
Homomya gejiuensis n. sp. Guo 1985 clam