Procera

Procera is a hypothetical clade of amphibians that includes salamanders and caecilians but not frogs. A close relationship between salamanders and caecilians is a competing hypothesis to the more widely supported view that salamanders and frogs are each other's closest relatives within a clade called Batrachia. Procera was proposed as a clade in 1998 and has been supported by few recent morphological and molecular studies.^[1]

Procera Temporal range: Late Triassic - Holocene
Kerala caecilian (Uraeotyphlus interruptus)
Fire salamander (Salamandra salamandra)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Subclass:	Lissamphibia
Clade:	Procera Feller and Hedges, 1998
Orders
Gymnophiona Caudata

References

1. Pyron, A. R.; Wiens, J. J. (2011). "A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs, salamanders, and caecilians". Molecular Phylogenetics and Evolution. 61 (2): 543–583. doi:10.1016/j.ympev.2011.06.012. PMID 21723399.