†Leptoptygma laetus Pan and Erwin 2002 (snail)
Gastropoda - Murchisoniina - Soleniscidae
Full reference: H. -Z. Pan and D. H. Erwin. 2002. Gastropods from the Permian of Guangxi and Yunnan Provinces, South China. Journal of Paleontology Memoir 56:1-49
Belongs to Leptoptygma according to H. -Z. Pan and D. H. Erwin 2002
Sister taxa: Leptoptygma fountainensis, Leptoptygma golconda, Leptoptygma newtonensis, Leptoptygma simplex, Leptoptygma subtilistriatum, Leptoptygma virgatum
Type specimen: USNM 127685, a shell. Its type locality is Matan M40, Heshan, which is in a Changhsingian carbonate limestone in the Heshan Formation of China.
Ecology: epifaunal carnivore
Average measurements (in mm): shell width 0.930