Kingdom Animalia Subclass †Lepospondyli Rank Superfamily | Phylum Chordata Order †Aistopoda | |
 | ||
Stem group †Phlegethontioidea
Anderson et al., 2003 People also search for Sauropleurinae, Urocordylinae | ||
Phlegethontioidea is a clade of aistopod amphibians including the families Phlegethontiidae and Pseudophlegethontiidae. It is a stem-based taxon defined in phylogenetic terms as all aistopods sharing a more recent common ancestor with Phlegethontia than Oestocephalus.
References
Phlegethontioidea Wikipedia(Text) CC BY-SA