Bivalvia - Ostreida - Malleidae
Full reference: Y. S. Repin. 2013. New taxa of Jurassic bivalve mollusks from Iran. Paleontological Journal 47:562-569
Parent taxon: Isognomon according to Y. S. Repin 2013
Sister taxa: Isognomon (Hippochaeta), Isognomon (Iranognomon), Isognomon (Isognomon), Isognomon (Melina), Isognomon (Mulletia), Isognomon (Parviperna), Isognomon alatus, Isognomon bicolor, Isognomon gariesensis, Isognomon gaudichaudi, Isognomon isognomoides, Isognomon isognomon, Isognomon isognomonoides, Isognomon legumen, Isognomon lusitanicus, Isognomon maxillata, Isognomon nucleus, Isognomon orientalis, Isognomon perna, Isognomon radiatus, Isognomon repini, Isognomon ricordeanus, Isognomon valvanoi, Perna subplana, Perna infraliasica, Perna latoconvexa, Perna inaequivalvis, Perna loczyi, Perna mytiloides
Subtaxa: Isognomon (Semignomon) tabasicum
Ecology: stationary epifaunal suspension feeder
Distribution: found only at Kamar-Mehdi Range, Tabas region (Jurassic of Iran)