Majiashan, unit 4 (Permian of China)

Where: Anhui, China (31.6° N, 117.8° E: paleocoordinates 16.5° N, 100.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Unit 4, Tapashanites zone

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; lithified mudstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Laboratory of Geobiology, Faculty of Earth Sciences, China University of Geosciences, Wuhan

Primary reference: W. H. He, G. R. Shi, and Y. Zhang, T. L., F. Teng and S. B. Wu. 2012. Systematics and palaeoecology of Changhsingian (Late Permian) Ambocoeliidae brachiopods from South China and implications for the end-Permian mass extinction. Alcheringa 36:515-530 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136860: authorized by Matthew Clapham, entered by Matthew Clapham on 05.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Productellidae
Paryphella majiashanensis n. sp. He and Shi 2014
 Productida - Linoproductidae
Anidanthus mucronata He et al. 2005
 Productida - Rugosochonetidae
? Fusichonetes sp., "Tethyochonetes chaoi" = Fusichonetes chaoi, Tethyochonetes pigmaea, "Tethyochonetes longtanensis" = Fusichonetes longtanensis, "Tethyochonetes quadrata" = Fusichonetes quadrata, "Tethyochonetes soochowensis" = Fusichonetes soochowensis
"Tethyochonetes chaoi" = Fusichonetes chaoi Chen et al. 2000
"Tethyochonetes longtanensis" = Fusichonetes longtanensis Liao 1984
"Tethyochonetes quadrata" = Fusichonetes quadrata Zhan 1979
"Tethyochonetes soochowensis" = Fusichonetes soochowensis Chao 1928
 Productida - Lyttoniidae
? Leptodus sp. Kayser 1883
Rhynchonellata
 Spiriferida - Ambocoeliidae
 Orthida - Schizophoriidae
Acosarina minuta Abich 1878