Bivalvia - Ostreida - Gryphaeidae
Alternative combinations: Ostrea stewarti, Pycnodonte (Crenostrea) stewarti
Full reference: M. A. Hanna. 1927. An Eocene invertebrate fauna from the La Jolla Quadrangle, California . University of California Publications Bulletin of the Department of Geological Sciences 16(8):247-398
Belongs to Phygraea according to A. J. W. Hendy 2020
See also Hanna 1927, Moore 1987, Squires 1987 and Squires 2018
Sister taxa: Phygraea badgeri, Phygraea haleyi, Phygraea lincolnensis, Phygraea newberryi, Phygraea pacifica, Pycnodonte (Phygraea) burckhardti, Pycnodonte (Phygraea) proteus, Pycnodonte (Phygraea) pseudovesicularis, Pycnodonte (Phygraea) sarmientoi, Pycnodonte (Phygraea) vesicularis, Pycnodonte (Phygraea) wratheri
Type specimen: UCMP 30921–22, a shell
Distribution:
• Eocene of United States (7: California collections)
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.