Pseudemys gorzugi differs from Chrysemys picta in lacking an ornately marked plastron (lower shell). It differs from Pseudemys texana in lacking a median notch often flanked by toothlike cusps on the upper jaw, and by lacking a red-tinged rim on the plastron. It differs from Trachemys scripta in lacking a prominent orange patch on each side of the head. It differs from Pseudemys concinna by having black and yellow concentric circles on the plastron instead of "C" markings (Degenhardt et al. 1996, Ernst and Lovich 2009).
Degenhardt et al. (1996) included a key to the turtles of New Mexico. Dixon (2000) presented a key to Texas turtle species.