Bivalvia - Ostreida - Malleidae
Full reference: Y. S. Repin. 2008. New Bivalves from the Jurassic of Iran. Paleontological Journal 42(3):243-250
Parent taxon: Isognomon according to Y. S. Repin 2008
Sister taxa: Isognomon (Hippochaeta), Isognomon (Isognomon), Isognomon (Melina), Isognomon (Mulletia), Isognomon (Parviperna), Isognomon (Semignomon), Isognomon alatus, Isognomon bicolor, Isognomon gariesensis, Isognomon gaudichaudi, Isognomon isognomoides, Isognomon isognomon, Isognomon isognomonoides, Isognomon legumen, Isognomon maxillata, Isognomon nucleus, Isognomon orientalis, Isognomon perna, Isognomon quadrisulcata, Isognomon radiatus, Isognomon repini, Isognomon valvanoi
Subtaxa: Isognomon (Iranognomon) arkelli
Ecology: stationary epifaunal suspension feeder
Distribution: found only at Parvade Coal Field, Parvade Fm (Jurassic of Iran)