ammonites
Triseptothyris yanjinensis Xu 1978 (lamp shell)

Rhynchonellata - Terebratulida

Full reference: G. R. Xu. 1978. Triassic Brachiopoda. Palaeontological Atlas of Southwest China - Sichuan Volume 2:267-314

Belongs to Triseptothyris according to G. R. Xu 1978

Sister taxa: none

Type specimen: Its type locality is Yanjin County, which is in an Anisian marine horizon in the Leikoupo Formation of China

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 7.17 x 6.00, valve 15.0 x 12.0