Bivalvia - Trigoniida - Trigonodidae

Alternative combinations: Anodontophora fassaensis, Myacites fassaensis

Belongs to Unionites according to M. Hautmann et al. 2013

Sister taxa: Unionites albertii, Unionites borealis, Unionites breviformis, Unionites brevis, Unionites canalensis, Unionites donacinus, Unionites elisabethae, Unionites gregarius, Unionites griesbachi, Unionites guizhouensis, Unionites letticus, Unionites manmuensis, Unionites minimus, Unionites ovalis, Unionites posterus, Unionites rhomboidalis, Unionites sorokovi, Unionites spicatus, Unionites subrectus, Unionites trapezoidalis

Average measurements (in mm): shell 12.5 x 6.2, valve length 15.8