Ascaphidae

Ascaphidae is a family of frogs. They are called tailed frogs because they have an organ that looks like a tail. The tail helps them to live in fast-moving streams. They live in North America.^[1]

• Gissi, Carmela; San Mauro, Diego; Pesole, Graziano; Zardoya, Rafael (February 2006). "Mitochondrial phylogeny of Anura (Amphibia): A case study of congruent phylogenetic reconstruction using amino acid and nucleotide characters". Gene. 366 (2): 228–237. doi:10.1016/j.gene.2005.07.034. PMID 16307849.
• Roelants, Kim; Bossuyt, Franky (February 2005). "Archaeobatrachian paraphyly and pangaean diversification of crown-group frogs". Systematic Biology. 54 (1): 111–126. doi:10.1080/10635150590905894. PMID 15805014. S2CID 10677785.

Media related to Ascaphidae at Wikimedia Commons

• Excerpt from Zeiner et al. 1988 describing tailed frogs Archived 2004-08-26 at the Wayback Machine
• Type information from the American Museum of Natural History