Dajialian Section, Bed 31 (73YPVI F41-1-7), Xihuancang, Tianjun District (Triassic of China)

Where: Qinghai, China (37.5° N, 99.4° E: paleocoordinates 29.8° N, 81.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Dajialian Formation (Junzihe Group), Anisian (247.2 - 242.0 Ma)

• 43.71 m thick

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, shelly/skeletal, gray limestone

Size class: macrofossils

Primary reference: G. C. Liu and H. F. Yin. 1983. Middle Triassic, Jinzihe Formation. In Z. Y. Yang, H. F. Yin, G. R. Xu, S. B. Wu, Y. L. He, G. C. Liu, J. R. Yin (eds.), Triassic of the southern Qilian Mountains 11-21 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101046: authorized by Matthew Clapham, entered by Matthew Clapham on 15.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Dielasmatidae
Sulcatinella sp. Dagys 1974
 Terebratulida - Zeilleriidae
"Sulcatinella ovata" = Qilianoconcha opima
"Sulcatinella ovata" = Qilianoconcha opima Yang and Yin 1962
 Spiriferinida - Spiriferellinidae
"Pseudospiriferina tsinghaiensis" = Pseudospiriferina tsinghaiensis, "Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis
"Pseudospiriferina tsinghaiensis" = Pseudospiriferina tsinghaiensis Yang and Yin 1962
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis Yang and Yin 1962
 Spiriferinida - Punctospiriferidae
Yangkongia sp., "Yangkongia planofolda" = Yangkongia bifurcata
Yangkongia sp. Xu and Liu 1983
"Yangkongia planofolda" = Yangkongia bifurcata Yang and Yin 1962
 Spiriferinida - Balatonospiridae
Aequspiriferina sp. Yang and Yin 1962
Aequspiriferina multiplicata Yang and Yin 1962
 Rhynchonellida - Cyclothyrididae
Lingulata
 Lingulida - Discinidae
Bivalvia
 Pectinida - Pectinoidae
Pleuronectites laevigatus Schlotheim 1820 scallop
 Pectinida - Hunanopectinidae
Leptochondria albertii Goldfuss 1838 scallop
ssp. plana
 Pectinida - Aviculopectinidae
"Neomorphotis sp." = Eumorphotis
"Neomorphotis sp." = Eumorphotis Bittner 1901 scallop
 Lucinida - Lucinidae
Schafhaeutlia astartiformis Münster 1841 clam
 Trigoniida - Myophoriidae
"Leviconcha ovata" = Neoschizodus ovatus
"Leviconcha ovata" = Neoschizodus ovatus Goldfuss 1838 clam