Guojiashan Section, Bed 20 (Triassic of China)
Where: Gansu, China (33.9° N, 104.5° E: paleocoordinates 17.9° N, 87.5° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Guojiashan Formation, Anisian (247.2 - 242.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Primary reference: J. Tong and D.H. Erwin. 2001. Triassic gastropods of the southern Qinling Mountains, China. Smithsonian Contributions to Paleobiology 92:1-47 [P. Wagner/P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 119266: authorized by Matthew Clapham, entered by Matthew Clapham on 22.10.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Gastropoda | |
Euryalox sp. snail
? Worthenia "sp. B" de Koninck 1883 snail
Worthenia extendia n. sp. Tong and Erwin 2001 snail | |
? Gosseletina dangchangensis n. sp. Tong and Erwin 2001 snail
Ananias guojiashanensis Tong and Erwin 2001 snail | |
Marmolatella complanata, Marmolatella cf. complanata, Platychilina sinensis n. sp., Platychilina obliqua n. sp.
Marmolatella complanata Stoppani 1857 snail
Marmolatella cf. complanata Stoppani 1857 snail
Platychilina sinensis n. sp. Tong and Erwin 2001 snail
Platychilina obliqua n. sp. Tong and Erwin 2001 snail | |
? Codinella sp. Kittl 1899 snail | |
Trochotoma (Discotoma) gansuensis n. sp. Tong and Erwin 2001 snail | |
Zygites laevigatus n. sp.
Zygites laevigatus n. sp. Tong and Erwin 2001 snail | |
? Triassocirrus sp. Yin and Yochelson 1983 snail | |
Omphaloptycha gansuensis n. sp.
Omphaloptycha gansuensis n. sp. Tong and Erwin 2001 snail | |
Neodonaldina cf. elongata Zardini 1978 snail | |
Naticopsis (Dicosmos) declivis, Naticopsis (Dicosmos) compressus n. sp., ? Naticopsis ribletella n. sp., Naticopsis (Vernelia) sublimneiformis
Naticopsis (Dicosmos) declivis Kittl 1894 snail
Naticopsis (Dicosmos) compressus n. sp. Tong and Erwin 2001 snail
? Naticopsis ribletella n. sp. Tong and Erwin 2001 snail
Naticopsis (Vernelia) sublimneiformis Kittl 1894 snail | |
Neritaria ingrandita Kittl 1894 snail
Neritaria candida Kittl 1894 snail
Neritaria sphaeroidica Picard 1903 snail |