Bivalvia - Ostreida - Gryphaeidae

Parent taxon: Pycnodonte according to Sacco 1897

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

Subtaxa: Pycnodonte (Gigantostrea) leeana

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Ecology: stationary epifaunal suspension feeder