Atopophrynus Lynch and Ruiz-Carranza, 1982

Class: Amphibia > Order: Anura > Superfamily: Brachycephaloidea > Genus: Atopophrynus
1 species

Atopophrynus Lynch and Ruiz-Carranza, 1982, Proc. Biol. Soc. Washington, 95: 557. Type species: Atopophrynus syntomopus Lynch and Ruiz-Carranza, 1982, by original designation.

English Names

Sonson Frogs (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 70).


As for the single species.


Considered a member of Dendrobatidae in the original publication. Placed in Leptodactylidae (sensu lato), possibly close to Geobatrachus, by Myers and Ford, 1986, Am. Mus. Novit., 2843: 1-15, although they also noted that it might fit into Bufonidae. Heinicke, Duellman, and Hedges, 2007, Proc. Natl. Acad. Sci. USA, 104: 10092-10097, did not address this taxon in their analysis so its phylogenetic placement is unknown. Assignment to their Strabomantidae or Strabomantinae by Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 1-182, was provisional. Pyron and Wiens, 2011, Mol. Phylogenet. Evol., 61: 543-583, also did not include this taxon in their analysis and placed it provisionally as incertae sedis within Craugastoridae. Padial, Grant, and Frost, 2014, Zootaxa, 3825: 122, transferred Atopophrynus and Geobatrachus to incertae sedis within their Brachycephaloidea (= Terrarana of other authors), but did not assign these genera to families within that taxon pending resolution of their phylogenetic position. 

Contained taxa (1 sp.):

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