ammonites
Dielasma (Heterelasma) semitarium Reed 1944 (lamp shell)

Rhynchonellata - Terebratulida - Cryptonellidae

Full reference: F. R. C. Reed. 1944. Brachiopoda and Mollusca from the Productus limestones of the Salt Range. Palaeontogica Indica, Memoirs of the Geological Survey of India, New Series 23(2):1-596

Belongs to Dielasma (Heterelasma) according to F. R. C. Reed 1944

Sister taxa: Heterelasma angulatum, Heterelasma concavum, Heterelasma contortum, Heterelasma contrerasi, Heterelasma geniculatum, Heterelasma gibbosum, Heterelasma glansfagea, Heterelasma lenticularia, Heterelasma magnum, Heterelasma ngariensis, Heterelasma pentagonum, Heterelasma quadratum, Heterelasma shumardianum, Heterelasma solidum, Heterelasma sulciplicatum, Heterelasma venustulum

Type specimen: GSI 16959, a shell. Its type locality is Footpath to Banschang, pipe-rock, east of Chhdru, Salt Range, which is in a Wordian shoreface sandstone in the Amb Formation of Pakistan.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 35.0 x 22.0