[Crurotarsi] Sereno & Arcucci 1990
   Crocodylomorpha Walker 1968 [Clark 1988] see Subclass Crocodylomorpha Hay, 1930
     1 "sphenosuchians"
     2 Crocodyliformes Clark 1988 [Sereno, Larsson, Sidor & Gado 2001]