Concentrated evolutionary novelties in the foot musculature of Odontophrynidae (Anura: Neobatrachia), with comments on adaptations for burrowing

BLOTTO, B. L.; PEREYRA, M.O.; FAIVOVICH, J.; DIAS, P.H.D.S.; GRANT, T.

ZOOTAXA

MAGNOLIA PRESS

Lugar: Auckland; Año: 2017 vol. 4258 p. 425 - 442

1175-5326

We studied the foot musculature of the fossorial family Odontophrynidae (composed of the genera Macrogenioglottus,Odontophrynus, and Proceratophrys) plus several outgroup taxa from Hyloidea and other burrowing taxa from acrossAnura. We found novel character-states supporting the monophyly of Odontophrynus, Proceratophrys, and Odontophrynus+ Macrogenioglottus. The character-states observed in O. cultripes support conflicting phylogenetic positions withinOdontophrynus. A comparison of some novel character-states with a diverse sample of burrowing taxa suggests that somemodifications of the foot musculature might be involved in digging.