ammonites
Adygella subsphaerica Xu 1978 (lamp shell)

Rhynchonellata - Terebratulida - Dielasmatidae

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

Belongs to Adygella according to G. R. Xu 1978

Sister taxa: Adygella biplicata, Adygella bittneri, Adygella circulata, Adygella cubanica, Adygella elongata, Adygella himalayana, Adygella pentagonalis, Adygella rugosoplicata

Type specimen: Its type locality is Longmendong, Leikoupo Fm, Emei County, which is in an Illyrian marine horizon in the Leikoupo Formation of China

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 15.0 x 13.6