dcsimg

Procera

provided by wikipedia EN

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]

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.
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Procera: Brief Summary

provided by wikipedia EN

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.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Diagnosis

provided by World Register of Marine Species
Original diagnosis by Ehlers (1864: 256): "Kopflappen ohne Palpen, auf der Unterseite durch eine Furche in der Mittellinie getheilt; drei lange Fühler, erstes Segment ohne Ruder mit zwei langen Fühlercirren; am 2. und 3. Segment über dem Ruder ein langer Rückencirrus; an den übrigen Segmenten über dem Ruder ein kurzer, meist blattartig plattgedrückter Ruckencirrus; Bauchcirren fehlen."

Reference

6. Lack. P. (1986) The Atlas of wintering birds in Britain and Ireland.. T & A D Poyser Ltd, London.

license
cc-by-4.0
copyright
WoRMS Editorial Board
contributor
João Gil [email]