Bivalvia - Ostreida - Gryphaeidae

Alternative combination: Ostrea squarrosa

Belongs to Pycnodonte according to Ranson 1941

Sister taxa: Gryphaea belli, Pycnodonte (Crenostrea), Pycnodonte (Gigantostrea), Pycnodonte (Pegma), Pycnodonte (Phygraea), Pycnodonte (Pycnodonte), Pycnodonte amakusensis, Pycnodonte costei, Pycnodonte heermanni, Pycnodonte percrassa, Pycnodonte trigonalis, Pycnodonte vesicularis

Ecology: stationary epifaunal suspension feeder