Invalid subtaxa: Boreosaurus Nilsson 1943 [nomen dubium], Boreosaurus thorslundi Nilsson 1943 [nomen dubium]
Full reference: K. A. von Zittel. 1887. Handbuch der Palæontologie. I. Abtheilung - Palæozoologie. III. Band - Vertebrata (Pisces, Amphibia, Reptilia, Aves) 900 p.
Parent taxon: Tetrapoda according to S. E. K. Sequeira 2004
Sister taxa: Allopus, Amphibia, Chroniosuchia, Collettosaurus, Crucipes, Densignathus, Dipodiscus, Elginerpeton, Metaxygnathus, Ossinodus, Reptiliomorpha, Steganoposaurus, Typopus, Westlothiana, Ymeria
Subtaxa: Almasauroidea, Aspidosauridae, Caerorhachidae, Colosteidae, Colosteoidea, Dendrerpetontidae, Edopoidea, Eurycervix, Euskelia, Eutemnospondyli, Greererpeton, Iberospondylus, Limnarchia, Matthewichnus, Nanopus, Rhinesuchoidea, Rileymillerus, Saharastega