The earliest record of the endemic African frog family Ptychadenidae from the Oligocene Nsungwe Formation of Tanzania

Blackburn, David C., Roberts, Eric M., and Stevens, Nancy J. (2015) The earliest record of the endemic African frog family Ptychadenidae from the Oligocene Nsungwe Formation of Tanzania. Journal of Vertebrate Paleontology, 35 (2). e907174. pp. 1-5.

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Abstract

[Extract] The Ranoidea is a cosmopolitan radiation of frogs comprising 19 families and more than 2400 extant species (nearly 40% of all anurans; Ford and Cannatella, 1993; Scott, 2005; Bossuyt et al., 2006; Blackburn and Wake, 2011; Barej et al., 2014). Studies using time-calibrated molecular phylogenies suggest a Cretaceous origin for the Ranoidea (Bossuyt and Roelants, 2009), but the Mesozoic and early Cenozoic fossil record of this diverse clade remains poor (Rage, 1984; Roček, 2000; Roček and Rage, 2000; Rage and Roček, 2003). Although many fossils have been attributed to the Ranoidea, typically few diagnostic characteristics are provided to assign fossils to specific taxa within the clade (e.g., de Broin et al., 1974; Rage, 1984). The Ranoidea is thought to have initially diversified in Africa (Bossuyt et al., 2006; Rage et al., 2013), but the African fossil record of anurans in the Mesozoic and Paleogene is generally poor, with the Afro-Arabian record limited primarily to pipoid frogs (e.g., Henrici and Báez, 2001; Trueb et al., 2005; Rage and Dutheil, 2008; Rage et al., 2013) or taxonomically enigmatic fossils (Flynn and Brunet, 1989; Jacobs et al., 1990; Roček, 2000; Evans et al., 2008; Rage and Dutheil, 2008; Rage et al., 2013).

Item ID: 39241
Item Type: Article (Research - C1)
ISSN: 1937-2809
Funders: National Geographic Society, LSB Leakey Foundation, Ohio University African Studies Program, Ohio University Research Council, Ohio University Heritage College of Osteopathic Medicine, California Academy of Sciences, James Cook University, U.S. National Science Foundation (NSF)
Projects and Grants: NSF EAR 0617561, NSF EAR/IF 0933619, NSF BCS 1127164, NSF BCS 1313679,
Date Deposited: 29 Jun 2015 05:40
FoR Codes: 04 EARTH SCIENCES > 0403 Geology > 040308 Palaeontology (incl Palynology) @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 100%
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