[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}
[crown] Crocodylia Gmelin 1789 [Clark 1988]
see Order Crocodylia Wagler, 1830
[crown] Brevirostres von Zittel 1890 [Brochu 2003]
Alligatoroidea Gray 1844 {Brochu 2003}
see Superfamily Alligatoroidea Cuvier, 1807
Globidonta Brochu 1999 [Brochu 1999]
[crown] Alligatoridae Cuvier 1807 {Brochu 2003}
see Family Alligatoridae Cuvier, 1807
Caimaninae Brochu 1999
see Subfamily Caimaninae Brochu, 1999
1 ?†Necrosuchus ionensis Simpson, 1937
2 ?Genus †Notocaiman Rusconi, 1937
3 †Eocaiman cavernosus Simpson, 1933
see Eocaiman cavernensis Simpson, 1933
4.1 Genus Paleosuchus Gray, 1862
4.2.1.1 †Nettosuchidae Langston 1965 [Brochu 1999], nom. cl. nud.
4.2.1.2 Genus †Purussaurus Rodrigues, 1892
4.2.2.1 †Caiman tremembensis Chiappe, 1988, nom. dub., incertae sedis
4.2.2.2 †Caiman niteroiensis Souza Filho & Bocquetin, 1991, nom. nud., incertae sedis
4.2.2.3 †Caiman brevirostris Souza Filho, 1987, incertae sedis
4.2.2.4.1 †Caiman lutescens (Rovereto, 1912)
4.2.2.4.2 Genus Melanosuchus Gray, 1862 [monotypic]
4.2.2.4.3 Caiman latirostris (Daudin, 1802) - broad-nosed caiman
4.2.2.5.1 Caiman yacare (Daudin, 1802) - Panama caiman
4.2.2.5.2 Caiman crocodilus (Linnaeus, 1758) - common caiman