†suborder Mesosauria Seeley 1892 (amniote)
Alternative spellings: Mesosauri, Mesosauri
Synonym: Proganosauria Baur 1887
Full reference: H. G. Seeley. 1892. The Mesosauria of South Africa. Quarterly Journal of the Geological Society of London 48:586-604
Parent taxon: Amniota according to J. A. Gauthier et al. 1989
See also Baur 1887, Carroll 1969, Carroll 1988, Gadow 1898, Goodrich 1916, Haughton and Brink 1954, Huene 1954, Jaekel 1910, Jaekel 1911, Karl et al. 2007, Kuhn 1946, Osborn 1903, Osborn 1903, Osborn 1904, Roxo 1937, Seeley 1892, Stefano 1903 and Zittel 1890
Sister taxa: Colognathus, Dicondylia, Enigmatopus, Euamniota, Gnorhimosuchus, Kraterokheirodon, Monocondylia, Plagiaulax dawsoni, Recumbirostra, Sauropsida, Synapsida, Timanosaurus, Vitalia
Subtaxa: Neusticosauria
Ecology: