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
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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 | |
References
edit- ^ 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.