Crocodylomorpha Walker 1968 [Clark 1988] see Subclass Crocodylomorpha Hay, 1930
   Crocodyliformes Clark 1988 [Sereno, Larsson, Sidor & Gado 2001]
     Mesoeucrocodylia Whetstone & Whybrow 1983 [Sereno, Larsson, Sidor & Gado 2001]
       Metasuchia Benton & Clark 1988 [Sereno, Larsson, Sidor & Gado 2001]
         Neosuchia Benton & Clark 1988 [Sereno, Larsson, Sidor & Gado 2001]
           Crocodylia Gmelin 1789 [Clark 1988] see Order Crocodylia Wagler, 1830
             1 Genus Gavialis Oppel, 1811
             2.1 Genus Crocodylus Laurenti, 1768
             2.2.1 Genus †Leidyosuchus Lambe, 1907
             2.2.2 Genus Alligator Cuvier, 1817