PaleoDB taxon number: 362606
Alternative combination: Psephophorus eocaenus
Full reference: C. W. Andrews. 1901. Preliminary Note on some recently discovered extinct vertebrates from Egypt. Geological Magazine 8(4):436-444
Sister taxon: Egyptemys oregonensis
Type specimen: CGM 10028, a set of limb elements (humerus). Its type locality is Qasr el-Sagha, which is in an Eocene marine shale/limestone in the Qasr el-Sagha Formation of Egypt.