ammonites
Leptodus cancriniformis Liao 1980 (lamp shell)

Strophomenata - Productida - Lyttoniidae

Full reference: Z. T. Liao. 1980. Upper Permian brachiopods from western Guizhou. Late Permian Stratigraphy and Fossils in Western Guizhou and Eastern Yunnan 241-277

Belongs to Leptodus according to Z. T. Liao 1980

Sister taxa: Leptodus deminutus, Leptodus elongatus, Leptodus guadalupensis, Leptodus hemisphaericus, Leptodus hoshanensis, Leptodus huangi, Leptodus kaluzinensis, Leptodus minor, Leptodus nobilis, Leptodus oldhaminoides, Leptodus ovatus, Leptodus richthofeni, Leptodus tenuis, Leptodus trapezium, Leptodus tumenlingensis, Leptodus wuchangensis

Type specimen: NIGP 43698. Its type locality is Zhongling Section M1-9, Nayong County, which is in a Changhsingian shallow subtidal horizon in China.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 33.1 x 36.0