Vicariant Origin of Malagasy Reptiles Supports Late Cretaceous Antarctic Land Bridge. 2006. B. P. Noonan and P.T. Chippindale. American Naturalist 168: 730-741.
ABSTRACT : Since the acceptance of Wegener's theory of plate tectonics in the 1960s, continental drift vicariance has been proposed as an explanation for pan-Gondwanan faunal distributions. Given the recognition of historical connections among continents, it no longer was necessary to invoke hypotheses of dispersal across nearly insurmountable barriers. Recent studies have demonstrated a significant, if not dominant, role for dispersal in the present-day distributions of "Gondwanan" taxa.
This represents the first temporal evidence linking the vicariant origin of extant Malagasy vertebrates to a single geologic event. Specifically, our data provide strong, independently corroborated evidence for a contiguous Late Cretaceous Gondwana, exclusive of Africa and connected via Antarctica.