Bivalvia - Ostreida - Gryphaeidae
Alternative combination: Pycnodonte (Phygraea) pacifica
Full reference: R. L. Squires and R. Demetrion. 1990. New Eocene Marine Bivalves from Baja California Sur, Mexico. Journal of Paleontology 64(3):382-391
Belongs to Phygraea according to A. J. W. Hendy 2020
See also Squires 1999, Squires 2001 and Squires and Demetrion 1992
Sister taxa: Phygraea badgeri, Phygraea haleyi, Phygraea lincolnensis, Phygraea newberryi, Phygraea stewarti, Pycnodonte (Phygraea) burckhardti, Pycnodonte (Phygraea) proteus, Pycnodonte (Phygraea) pseudovesicularis, Pycnodonte (Phygraea) sarmientoi, Pycnodonte (Phygraea) vesicularis, Pycnodonte (Phygraea) wratheri
Type specimen: IGM 5067, a shell. Its type locality is CSUN Loc. 1220 [Bateque Fm], which is in a Ypresian offshore sandstone/limestone in the Bateque Formation of Mexico.
Distribution:
• Eocene of Mexico (8 collections), United States (4: California)
Total: 12 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.