Tanggulashan Village (No. B);, Qoimaco Formation (Jurassic of China)

Where: China (34.0° N, 91.2° E: paleocoordinates 26.4° N, 88.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Qoimaco Formation, Bajocian (170.3 - 168.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, red, silty sandstone and lithified breccia

• This formation is composed

•mainly of dark red, scarlet, grey, dark grey detritus-quartzsandstone,

•quartz-sandstone, siltstone; the bottom is formed

•by polymict breccias, with rare oospararenite and finegrained

•calcarenite in the lower part and carbonate fine


Size class: macrofossils

Primary reference: H. Z. Yao, R. J. Zhang, Q. F. Duan, X. C. Sheng, Z. J. Niu, J. X. Wang, B. F. Zeng and J. H. Wu. 2011. Jurassic rocks, bivalves, and depositional environments of the source area of the Yangtze River, Qinghai Province, western China. Sci China Earth Sci 54(8):1136-1148 [M. Aberhan/D. Wellmanns]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 127176: authorized by Martin Aberhan, entered by Daniel Wellmanns on 01.05.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pectinida - Propeamussiidae
 Pectinida - Pectinoidae
Camptonectes (Camptonectes) auritus Schlotheim 1813 scallop
 Pectinida - Anomiidae
Placunopsis sp. Morris and Lycett 1853 scallop
 Ostreida - Bakevelliidae
Kobayashites sp. Hayami 1959 oyster
Kobayashites cf. hayamii Yin 1988 oyster
 Mytilida - Mytilidae
Lycettia sp. Cox 1937 mussel
Modiolus sp. Lamarck 1801 mussel
 Cardiida - Arcticidae
 Pholadomyida - Pholadomyidae
Homomya sp. Agassiz 1843 clam