†unranked clade Olsoniformes Anderson et al. 2008 (tetrapod)
Full reference: J. S. Anderson, A. C. Henrici, S. S. Sumida, T. Martens, and D. S. Berman. 2008. Georgenthalia clavinasica, a new genus and species of dissorophoid temnospondyl from the Early Permian of Germany, and the relationships of the family Amphibamidae. Journal of Vertebrate Paleontology 28(1):61-75
Parent taxon: Xerodromes according to R. R. Schoch and A. R. Milner 2014
See also Anderson et al. 2008, Bourget and Anderson 2011, Reisz et al. 2009, Schoch 2013 and Schoch and Sues 2013
Sister taxon: Amphibamiformes
Subtaxa: Dissorophidae Trematopidae
Ecology: ground dwelling carnivore