Bivalvia - Ostreida - Gryphaeidae
Alternative spelling: Crenostrea
Parent taxon: Pycnodonte according to M. C. Perrilliat 1994
See also Beu et al. 1990, Moore 1987, Sepkoski 2002, Vokes 1980 and Woodring 1982
Sister taxa: Gryphaea belli, Pycnodonta frauscheri, Pycnodonta rarilamella, Pycnodonta vesicularis, Pycnodonte (Costeina), Pycnodonte (Gigantostrea), Pycnodonte (Pegma), Pycnodonte (Phygraea), Pycnodonte (Pycnodonte), Pycnodonte amakusensis, Pycnodonte convexa, Pycnodonte costei, Pycnodonte erici, Pycnodonte ewekoroensis, Pycnodonte gryphovicinus, Pycnodonte heermanni, Pycnodonte loeli, Pycnodonte nigeriensis, Pycnodonte percrassa, Pycnodonte squarrosa, Pycnodonte trigonalis, Pycnodonte vesicularis
Subtaxa: Crenostrea eldridgei Crenostrea segurai Pycnodonte (Crenostrea) achanes Pycnodonte (Crenostrea) antiguensis Pycnodonte (Crenostrea) verracruzana Pycnodonte (Crenostrea) wuellerstorfi
Type: Ostrea wuellerstorfi
Ecology: stationary epifaunal suspension feeder
Distribution:
• Miocene of Costa Rica (1 collection), Grenada (1), Mexico (1), New Zealand (6), United States (23: California)
• Oligocene to Miocene of United States (1: Florida)
• Oligocene of Antigua and Barbuda (1), New Zealand (2), Puerto Rico (5), United States (5: California, Florida)
• Eocene of Mexico (2), New Zealand (3), Panama (1)
Total: 52 collections each including a single occurrence