PBDB Collection

Dajialian Section, Bed 33 (73YPVI F43-1-3), 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)

• 27.17 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 101048: authorized by Matthew Clapham, entered by Matthew Clapham on 15.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Rhynchonellata
Athyridida - Neoretziidae	Schwagerispira elegans Schwagerispira elegans Guo and Chen 2022
Spiriferinida - Sinucostidae	Qispiriferina subrotunda Qispiriferina subrotunda Xu and Liu 1983
Spiriferinida - Punctospiriferidae	Yangkongia sp., "Yangkongia planofolda" = Yangkongia bifurcata Yangkongia sp. Xu and Liu 1983 "Yangkongia planofolda" = Yangkongia bifurcata Yang and Yin 1962
Spiriferinida - Spiriferellinidae	"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis "Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis Yang and Yin 1962
Rhynchonellida - Cyclothyrididae	Costirhynchopsis rhomba, Costirhynchopsis tienchungensis Costirhynchopsis rhomba Yang and Yin 1962 Costirhynchopsis tienchungensis Yang and Yin 1962
Rhynchonellida - Tetrarhynchiidae	Triasorhynchia subglobulina Triasorhynchia subglobulina Xu and Liu 1983
Terebratulida - Zeilleriidae	Parantiptychia sp., Parantiptychia robusta, Qilianoconcha circularis, "Sulcatinella ovata" = Qilianoconcha opima Parantiptychia sp. Xu and Liu 1983 Parantiptychia robusta Yang and Yin 1962 Qilianoconcha circularis Guo and Chen 2022 "Sulcatinella ovata" = Qilianoconcha opima Yang and Yin 1962
Terebratulida - Dielasmatidae	Sulcatinella opima Sulcatinella opima Yang and Yin 1962
Bivalvia
Mytilida - Mytilidae	Mytilus sp. Mytilus sp. Linnaeus 1758 mussel
Myalinida - Mysidiellidae	"Mytilus eduliformis" = Promysidiella eduliformis "Mytilus eduliformis" = Promysidiella eduliformis Schlotheim 1820 clam includes ssp. praecursor
Pectinida - Pectinoidae	Aequipecten ex gr. intercedens, Aequipecten sp. Aequipecten ex gr. intercedens scallop Aequipecten sp. Fischer 1886 scallop
Pectinida - Limidae	Plagiostoma tingi Plagiostoma tingi file clam
Pectinida - Hunanopectinidae	Leptochondria subparadoxica, Leptochondria albertii Leptochondria subparadoxica scallop Leptochondria albertii Goldfuss 1838 scallop ssp. plana
Pectinida - Entoliidae	Entolium discites Entolium discites Schlotheim 1820 scallop
Ostreida - Cassianellidae	Cassianella sp. Cassianella sp. Beyrich 1862 oyster
Ostreida - Bakevelliidae	Bakevellia acutaurita Bakevellia acutaurita oyster
Ostreida - Pteriidae	Pteria sp. Pteria sp. Scopoli 1777 pearl oyster
Ostreida - Pinnidae	Pinna raebliana Pinna raebliana oyster
Cardiida - Anthracosiidae	Unionites sp. Unionites sp. Wissman 1841 clam
Cardiida - Kalenteridae	Curionia yini, Curionia bicostata Curionia yini clam Curionia bicostata clam
Lucinida - Lucinidae	Schafhaeutlia astartiformis, Schafhaeutlia mellingi Schafhaeutlia astartiformis Münster 1841 clam Schafhaeutlia mellingi Hauer 1857 clam