†Pachyrisma (Pachyrismella) (clam)
Bivalvia - Megalodontida - Megalodontidae
Alternative spelling: Pachyrismella
Parent taxon: Pachyrisma according to L. R. Cox et al. 1969
See also Sepkoski 2002
Sister taxa: Pachyrisma (Durga), Pachyrisma (Pachymegalodon), Pachyrisma grande, Pachyrisma rimosum, Pachyrisma rostratum
Subtaxa: none
Ecology: stationary semi-infaunal suspension feeder
Distribution: found only at Saal Quarry (Jurassic of Germany)