ammonites
Waagenoconcha abnakensis Fantini Sestini 1966 (lamp shell)

Strophomenata - Productida - Echinoconchidae

Full reference: N. Fantini Sestini. 1966. The geology of the Upper Djadjerud and Lar Valleys (North Iran) II; Palaeontology: brachiopods from Geirud Formation, Member D (Lower Permian). Rivista Italiana di Paleontologia e Stratigrafia 72(1):9-50

Belongs to Waagenoconcha according to N. Fantini Sestini 1966

Sister taxa: Waagenoconcha (Gruntoconcha), Waagenoconcha abichi, Waagenoconcha angustata, Waagenoconcha asiatica, Waagenoconcha bhalensis, Waagenoconcha convexa, Waagenoconcha cylindricus, Waagenoconcha elegantula, Waagenoconcha gangetica, Waagenoconcha humboldti, Waagenoconcha impercepta, Waagenoconcha imperfecta, Waagenoconcha irginae, Waagenoconcha irginaeformis, Waagenoconcha krystofovichi, Waagenoconcha leonardensis, Waagenoconcha magnifica, Waagenoconcha omanica, Waagenoconcha parvispinosa, Waagenoconcha payeri, Waagenoconcha permocarbonica, Waagenoconcha piassinaensis, Waagenoconcha platys, Waagenoconcha prophetica, Waagenoconcha punctulata, Waagenoconcha serialis, Waagenoconcha subpermocarbonica, Waagenoconcha sulcata, Waagenoconcha tastubensis, Waagenoconcha tumenlingensis, Waagenoconcha vagans, Waagenoconcha waageni, Waagenoconcha wardlawi, Waagenoconcha wimani

Type specimen: Milan Univ. (63) IA-2877oa, a shell (Articulated shell). Its type locality is Abnak I, (63) IA-2877, Elburz Mountains, which is in a Visean marine limestone in the Geirud Formation of Iran.

Ecology: stationary low-level epifaunal suspension feeder