Rhynchonellata - Spiriferinida - Spiriferinidae

Alternative combinations: Spirifer mentzeli, Spiriferina (Mentzelia) mentzelii

Synonym: Spirifer medianus Quenstedt 1871

Belongs to Mentzelia according to J. Palfy 2003

Sister taxa: Mentzelia ampla, Mentzelia balatonica, Mentzelia glabra, Mentzelia minor, Mentzelia naliensis, Mentzelia ptychitiphila, Mentzelia punjabica, Mentzelia rhaetica, Mentzelia salaria, Mentzelia scabrula, Mentzelia sinuata, Mentzelia subspherica

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 18.7 x 18.8, valve 17.5 x 19.0