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Does the Phylogeny of Pelomedusoid Turtles Reflect Vicariance Due to Continental Drift? by Brice P. Noonan is a Environmental Science article available to read on EtoBox.

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## Abstract ## Aim The turtle hyperfamily Pelomedusoides has been long regarded as one of the best reptilian examples of the shared biological history of Africa and South America, and of vicariance due to continental drift. The currently accepted phylogeny of the Pelomedusoides is based on morphological and serological evidence. This study uses molecular data to examine the relationships within the Pelomedusoides and tests the hypothesis that the speciation within this group was caused by the separation of the Gondwanan continents. ## Methods Phylogenetic analysis of 921 bp of 12S and 16S mitochondrial rRNA obtained from GenBank. ## Results Our analysis resulted in a well‐supported phylogenetic hypothesis for the extant Pelomedusoides that does not agree with previous hypotheses based on morphology and serology. The new hypothesis of pelomedusoid relationships is (__Pelusios__ + __Pelomedusa__) (__Peltocephalus__[__Erymnochelys__ + __Podocnemis__]). The molecular evidence supports the monophyly of the Podocnemidae and Pelomedusidae of de Broin (1988). However, the relationships within the Podocnemidae differ in that the Madagascan __Erymnochelys__ is the sister taxon of the neotrop

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Author

Brice P. Noonan

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; JSTOR (ISSN 0305-0270)

Published

2000

Language

EN

Field

Environmental Science (Physical Sciences)