 A large midline ventral crest is only seen in "P. chiniquensis", "P. nyassicus", and "Batrachotomus" among loricatans.However, "Batrachotomus"'s crest smoothly transitions from the base of the ischium to the shaft, whereas an abrupt angled incision is observed in this area for "P. chiniquensis" and "P. nyassicus".The paired dorsal ridges are autapomorphies of "Prestosuchus," though they extend further down the shaft in "P. chiniquensis" than "P. nyassicus".