Dajialian Section, Bed 32 (73YPVI F42), 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)

• 30.66 m thick

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, 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 101047: authorized by Matthew Clapham, entered by Matthew Clapham on 15.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Lucinida - Lucinidae
 Mytilida - Mytilidae
Mytilus sp. Linnaeus 1758 mussel
 Pectinida - Pectinoidae
 Pectinida - Hunanopectinidae
Leptochondria sp. Bittner 1891 scallop
Rhynchonellata
 Rhynchonellida - Cyclothyrididae
Costirhynchopsis rhomba Yang and Yin 1962
 Rhynchonellida - Tetrarhynchiidae
 Athyridida - Neoretziidae
 Spiriferinida - Laballidae
Paralepismatina semiconica Yang and Xu 1966
 Spiriferinida - Bittnerulidae
Hirsutella sp. Cooper and Muir-Wood 1951
 Spiriferinida - Spiriferellinidae
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis Yang and Yin 1962
 Spiriferinida - Punctospiriferidae
"Yangkongia planofolda" = Yangkongia bifurcata
"Yangkongia planofolda" = Yangkongia bifurcata Yang and Yin 1962
 Terebratulida - Zeilleriidae
Parantiptychia robusta Yang and Yin 1962
Qilianoconcha circularis Guo and Chen 2022
"Sulcatinella ovata" = Qilianoconcha opima Yang and Yin 1962
 Terebratulida -
 Terebratulida - Dielasmatidae
Sulcatinella opima Yang and Yin 1962