Fossils are present from Madagascar, Morocco, Niger, Argentina, and Brazil (in the case of Caririsuchus, where some specimens have been found in the Romualdo Member of the Santana Formation[1]).

This may be an adaptation to a terrestrial or at least semiterrestrial lifestyle as such teeth would be better suited for cutting and tearing into prey as opposed to capturing them and holding them underwater.

[9] All more recent phylogenetic analyses found a close relations between Trematochapsidae and Peirosauridae,[7][8] and the two clades might be synonymous.

[10][11] Recent studies suggest that Itasuchus is a trematochampsid (and not closely related to the more derived notosuchian Malawisuchus).

[13] More recently, Trematochampsa taqueti was declared a nomen dubium by Meunier and Larsson (2018), who found that the materials assigned to it were from several different taxa.