Jiaozishan Section Bed 25 (AJ-43), Anshun County (Permian of China)

Where: Guizhou, China (26.3° N, 105.9° E: paleocoordinates 5.6° N, 95.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, shelly/skeletal, gray limestone and lithified, calcareous shale

Size classes: macrofossils, microfossils

Collection methods: All specimens are kept in the Nanjing Institute of Geology and Paleontology, Academia Sinica.

Primary reference: Z. Q. Yao, J. T. Xu, Z. G. Zheng, X. H. Zhao, and Z. G. Mou. 1980. Late Permian Stratigraphy and Fossils in Western Guizhou and Eastern Yunnan 1-277 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51424: authorized by Tom Olszewski, entered by Leigh Fall on 04.06.2005, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Tschernyschewiidae
 Productida - Aulostegidae
Edriosteges tumitus n. sp. Liao 1980
 Productida -
 Productida - Richthofeniidae
Richthofenia anshunensis n. sp. Liao 1980
 Productida - Lyttoniidae
Leptodus nobilis Waagen 1883
Rhynchonellata
 Spiriferida - Elythidae
"Squamularia squamularioides" = Permophricodothyris squamularioides
"Squamularia squamularioides" = Permophricodothyris squamularioides Huang 1933
 Spiriferida - Choristitidae
"Semibrachythyrina anshunensis n. sp." = Alphaneospirifer anshunensis
"Semibrachythyrina anshunensis n. sp." = Alphaneospirifer anshunensis Liao 1980
 Spiriferida - Martiniidae
Martinia acutirostris n. sp., "Martinia chidruensis" = Martinia warthi
Martinia acutirostris n. sp. Liao 1980
"Martinia chidruensis" = Martinia warthi Waagen 1883
 Athyridida - Athyrididae
Tongzithyris anshunensis n. sp. Liao 1980
 Rhynchonellida - Wellerellidae
 Terebratulida - Notothyrididae
Notothyris warthi Waagen 1882
 Orthida - Enteletidae
"Enteletina transversa" = Peltichia transversa, "Enteletina zigzag" = Peltichia zigzag
"Enteletina transversa" = Peltichia transversa Huang 1933
"Enteletina zigzag" = Peltichia zigzag Huang 1933
Stenolaemata
 Cystoporata - Fistuliporidae
 Cryptostomata - Acanthocladiidae
Polypora sinokoninckiana Yang and Lu 1962
ssp. mesoporata
Polypora chongqingensis Yang and Lu 1980
 Cryptostomata - Fenestellidae
"Fenestella tuberculifera" = Alternifenestella tuberculifera Schulga-Nesterenko 1952
ssp. anshunensis
Fenestella changxingiana Yang and Lu 1980
Cephalopoda
 Ceratitida - Pseudotirolitidae
Pseudotirolites sp. Sun 1933 ceratite
Anthozoa
 Stauriida - Metriophyllidae
Asserculinia orbiculata Wu and Wang 1974 horn coral
 Stauriida - Plerophyllidae
Paracaninia sinensis Chi 1937 horn coral
includes ssp. kaoi
 Stauriida - Lophophyllidae
Foraminifera
 Fusulinoidea - Ozawainellidae
Reichelina sp. Erk 1941
 Endothyroidea - Endothyridae