[Crurotarsi] Sereno & Arcucci 1990
   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]
         Eusuchia Huxley 1875 {Brochu 2003}
           Crocodylia Gmelin 1789 [Clark 1988] see Order Crocodylia Wagler, 1830
             Brevirostres von Zittel 1890 [Brochu 2003]
               Alligatoroidea Gray 1844 {Brochu 2003} see Superfamily Alligatoroidea Cuvier, 1807
                 Globidonta Brochu 1999 [Brochu 1999]
                   Alligatoridae Cuvier 1807 {Brochu 2003} see Family Alligatoridae Cuvier, 1807
                     Caimaninae Brochu 1999 see Subfamily Caimaninae Brochu, 1999
                       †Caiman niteroiensis Souza Filho & Bocquetin, 1991, nom. nud., incertae sedis