Comments: Pseudemys gorzugi originally was described as a subspecies of P. concinna (Ward 1984). It was treated as a full species by Ernst (1990), who noted the lack of evidence of gene exchange between gorzugi and the closest concinna populations (P. c. metteri), and by Seidel (1994). See Seidel (1994) for a morphometric analysis and taxonomic treatment of the genus Pseudemys.. See Stephens and Wiens (2003) for genetic data supporting the distinctiveness of P. gorzugi.
Existing DNA data indicate that this species is genetically relatively homogeneous across its range (Bailey et al. 2008).
This species has been treated in the literature also under the names Pseudemys concinna texana and Pseudemys floridana concinna; Pseudemys texana also has been treated under these names.