Gyanyima Section, unit 6, Zanda County (Permian of China)

Also known as Reef 4112

Where: Xizang, China (30.7° N, 80.7° E: paleocoordinates 48.0° S, 61.1° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Gyanyima Formation, Changhsingian (254.2 - 252.2 Ma)

Environment/lithology: reef, buildup or bioherm; lithified limestone

Size classes: mesofossils, microfossils

Collection methods: bulk, chemical,

Primary reference: S. Z. Shen, C. Q. Cao, Y. Zhang, W. Li, G.R. Shi, Y. Wang, Y. Wu, K. Ueno, C.M. Henderson, X. Wang, H. Zhang, X. Wang, and J. Chen. 2010. End-Permian mass extinction and palaeoenvironmental changes in Neotethys: Evidence from an oceanic carbonate section in southwestern Tibet. Global and Planetary Change 73:3-14 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187544: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 01.08.2017, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

 Palaeotextularoidea - Biseriamminidae
Globivalvulina sp. Schubert 1921
 Fusulinina - Colaniellidae
Colaniella parva Colani 1924
Colaniella nana Miklukho-Maklay 1954
 Tetrataxoidea - Tetrataxidae
Tetrataxis sp. Ehrenberg 1854
 Productida - Aulostegidae
Edriosteges sp. Muir-Wood and Cooper 1960
 Productida - Echinoconchidae
 Productida - Productidae
 Productida - Paucispiniferidae
 Productida - Richthofeniidae
Richthofenia lawrenciana de Koninck 1863
 Orthotetida - Schuchertellidae
 Orthotetida - Meekellidae
Orthothetina sp. Schellwien 1900
 Terebratulida - Notothyrididae
Notothyris warthi Waagen 1882
 Terebratulida - Pseudodielasmatidae
"Dielasma nummulus" = Fredericksolasma nummulus
"Dielasma nummulus" = Fredericksolasma nummulus Waagen 1882
 Spiriferida - Choristitidae
 Spiriferida - Martiniidae
Martinia "sp. A" M'Coy 1844
Martinia semiplana Waagen 1883
Martinia elegans Diener 1897
Martinia elongata Waagen 1883
 Spiriferida - Elythidae
"Squamularia squamularioides" = Permophricodothyris squamularioides, "Squamularia grandis" = Permophricodothyris grandis, "Squamularia elegantula" = Permophricodothyris elegantula
"Squamularia squamularioides" = Permophricodothyris squamularioides Huang 1933
"Squamularia grandis" = Permophricodothyris grandis Chao 1929
"Squamularia elegantula" = Permophricodothyris elegantula Waagen 1883
 Rhynchonellida - Stenoscismatidae
Stenoscisma sp. Conrad 1839
Stenoscisma gigantea Diener 1897
Stenoscisma mutabilis Tschernyschew 1902
 Orthida - Enteletidae
"Enteletes tschernyschewi" = Enteletes tschernyscheffi
"Enteletes tschernyschewi" = Enteletes tschernyscheffi Diener 1897
 Lingulida - Disciniidae
Orbiculoidea sp. d'Orbigny 1847
 Stauriida - Waagenophyllidae