Paralligatoridae is an extinct family of neosuchian crocodyliforms that existed during the Jurassic and Cretaceous periods. It includes the genera Paralligator, Brillanceausuchus, Kansajsuchus, Shamosuchus, Doratodon, Scolomastax, Sabresuchus, Rugosuchus, and Batrachomimus.

Evolution

Phylogenetic analyses of crocodyliforms find Paralligatoridae to nest within Neosuchia, a large clade (evolutionary grouping) that also includes modern crocodylians. In crocodyliform phylogeny, paralligatorids are usually found near the base of Neosuchia, outside the clade Eusuchia, which includes crocodylians and their closest relatives. Below is a cladogram from Montefeltro et al. (2013) showing the phylogenetic relationships of Paralligatoridae:

MesoeucrocodyliaThalattosuchia Metasuchia Notosuchia Neosuchia Khoratosuchus jintasakuli Tethysuchia Theriosuchus Goniopholididae Bernissartia fagesii Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Thalattosuchia
MetasuchiaNotosuchia Neosuchia Khoratosuchus jintasakuli Tethysuchia Theriosuchus Goniopholididae Bernissartia fagesii Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Notosuchia
NeosuchiaKhoratosuchus jintasakuli Tethysuchia Theriosuchus Goniopholididae Bernissartia fagesii Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Khoratosuchus jintasakuli Tethysuchia
Khoratosuchus jintasakuli
Tethysuchia
Theriosuchus Goniopholididae Bernissartia fagesii Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Theriosuchus
Goniopholididae Bernissartia fagesii Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Goniopholididae
Bernissartia fagesii Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Bernissartia fagesii
Paralligatoridae Batrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis Eusuchia Susisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
ParalligatoridaeBatrachomimus pastosbonensis Shamosuchus spp. Rugosuchus nonganensis
Batrachomimus pastosbonensis
Shamosuchus spp. Rugosuchus nonganensis
Shamosuchus spp.
Rugosuchus nonganensis
EusuchiaSusisuchus anatoceps Hylaeochampsa vectiana Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Susisuchus anatoceps
Hylaeochampsa vectiana
Allodaposuchus precedens Hylaeochampsidae Pietraroiasuchus ormezzanoi Iharkutosuchus makadii Isisfordia duncani Crocodylia
Allodaposuchus precedens
HylaeochampsidaePietraroiasuchus ormezzanoi Iharkutosuchus makadii
Pietraroiasuchus ormezzanoi
Iharkutosuchus makadii
Isisfordia duncani Crocodylia
Isisfordia duncani
Crocodylia