Peirosauridae

Peirosauridae Temporal range: Aptian–Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N
Skull of the peirosaurid Hamadasuchus rebouli on display at the Royal Ontario Museum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Clade:	Crocodyliformes
Clade:	†Notosuchia
Clade:	†Sebecosuchia
Clade:	†Sebecia
Family:	†Peirosauridae Gasparini, 1982
Genera
†Amargasuchus †Miadanasuchus †Stolokrosuchus? †Trematochampsa? †Pepesuchinae †Barreirosuchus †Caririsuchus †Itasuchus †Pepesuchus †Roxochampsa †Peirosaurinae †Antaeusuchus? †Barcinosuchus †Barrosasuchus †Bayomesasuchus †Colhuehuapisuchus †Gasparinisuchus †Hamadasuchus †Kinesuchus †Lomasuchus †Montealtosuchus †Patagosuchus †Peirosaurus †Rukwasuchus †Uberabasuchus

Peirosauridae is a Gondwanan family of mesoeucrocodylians that lived during the Cretaceous period. It was a clade of terrestrial crocodyliforms that evolved a rather dog-like skull, and were terrestrial carnivores. It was phylogenetically defined in 2004 as the most recent common ancestor of Peirosaurus and Lomasuchinae and all of its descendants. Lomasuchinae is a subfamily of peirosaurids that includes the genus Lomasuchus.^[1]

Lomasuchinae was defined in the same 2004 study as the most recent common ancestor of Lomasuchus and Mahajangasuchini and all of its descendants. Mahajangasuchini, also constructed in the study, was defined as the most recent common ancestor of Mahajangasuchus and Uberabasuchus and all of its descendants.^[1] However, all more recent phylogenetic analyses placed Mahajangasuchus within its own family, Mahajangasuchidae, along with the newly named Kaprosuchus.^[2][3][4]