Majiashan, unit 20 (Triassic of China)

Where: Anhui, China (31.6° N, 117.8° E: paleocoordinates 17.4° N, 99.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yinkeng Formation, Griesbachian (251.9 - 250.5 Ma)

• Unit 20, Ophiceras zone

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; lithified, calcareous 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 136872: authorized by Matthew Clapham, entered by Matthew Clapham on 05.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Productellidae
Paryphella minuta n. sp. He and Shi 2014
Rhynchonellata
 Spiriferida - Ambocoeliidae