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Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Bufonidae
Genus: Frostius
Cannatella, 1986[1]
Type species
Atelopus pernambucensis
Bokermann, 1962
2 species (see text)

Frostius – known as Frost's toads – is a small genus of true toads consisting of only two species endemic to Brazil. The genus was proposed by David C. Cannatella in 1986 based on an analysis of a species previously classified as Atelopus. Various morphological and life-history information first suggested that it is sister taxon to Atelopus or Atelopus + Osornophryne, but later molecular evidence suggests that it is sister taxon to Oreophrynella.[2] It was named for Darrel Frost in recognition of his work on anuran systematics.[1]


There are only two species in this genus:[2][3]

Binomial name and author Common name
Frostius erythrophthalmus Pimenta & Caramaschi, 2007
Frostius pernambucensis (Bokermann, 1962) Frost's toad


  1. ^ a b Cannatella, D. C. (1986). "A new genus of bufonid (Anura) from South America, and phylogenetic relationships of the neotropical genera". Herpetologica. 42 (2): 197–205. JSTOR 3892388. 
  2. ^ a b Frost, Darrel R. (2014). "Frostius Cannatella, 1986". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 10 March 2015. 
  3. ^ "Bufonidae". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2015. Retrieved 10 March 2015.