 "Terrestrisuchus" was originally classified as a member of the crocodylomorph suborder "Sphenosuchia", a group that included various other similar long-legged early crocodylomorphs and was considered to be a separate radiation from the group that all later crocodylomorphs would evolve from.However, this classification was made prior to the invention of cladistic phylogenetic analyses, which has since demonstrated that "Sphenosuchia" is an unnatural grouping (paraphyletic), meaning that "sphenosuchians" are not all descended from a single common ancestor to the exclusion of all other crocodylomorphs.Instead, the "sphenosuchians" are a grade of basal crocodylomorphs that lead up to the more derived crocodyliforms.