A different definition was suggested by Benton and Clark, 1988: the node-based taxon including the last common ancestor of Rauisuchidae and aetosaurs and all of its descendants.
Unha definición diferente é a suxerida por Benton e Clark, 1988: o taxon baseado nun nodo incluíndo o último antepasado común de Rauisuchidae e os aetosauros e todos os seus descendentes.