Maximum likelihood trees estimated with (A) mitogenomes and (B) mitogenomes combined with data from Fritz et al. (2024), representing nearly all Trachemys taxa. Outgroup (Deirochelys reticularia) removed for clarity in (B). The newly sequenced T. medemi mitogenomes are highlighted in red. Numbers at nodes represent posterior probabilities from a Bayesian phylogeny (left) and bootstrap values from the ML tree (right). Asterisks indicate maximum support from both approaches.