Amphibians as Indicators of Early Tertiary "Out-of-India" Dispersal of Vertebrates

  title={Amphibians as Indicators of Early Tertiary "Out-of-India" Dispersal of Vertebrates},
  author={Franky Bossuyt and Michel C. Milinkovitch},
  pages={93 - 95}
Sixty-five million years ago, massive volcanism produced on the India-Seychelles landmass the largest continental lava deposit (Deccan Traps) of the past 200 million years. Using a molecular clock–independent approach for inferring dating information from molecular phylogenies, we show that multiple lineages of frogs survived Deccan Traps volcanism after millions of years of isolation on drifting India. The collision between the Indian and Eurasian plates was followed by wide dispersal of… 
Earliest cenozoic frogs from the Indian subcontinent: implications for out-of-India hypothesis
This paper describes the earliest Cenozoic anurans from the Indian subcontinent, recovered from the early Eocene Cambay Shale deposits (-53.5 Ma) of the Vastan Lignite Mine, Gujarat, western India.
Out-of-India Gondwanan origin of some tropical Asian biota
These studies suggest that ancient Gondwanan lineages survived on peninsular India in spite of dramatic climatic changes and Late Cretaceous volcanism, and represent the remnants of unique ancient biota that require urgent attention from conservationists if the overall evolutionary history of Indian biota is preserved.
Late Cretaceous Vicariance in Gondwanan Amphibians
This work used dispersal-vicariance analyses and molecular timetrees to show that two species-rich frog groups, Microhylidae and Natatanura, display congruent patterns of spatial and temporal diversification among Gondwanan plates in the Late Cretaceous, long after the presumed major tectonic break up events.
Late Cretaceous continental vertebrate fossil record from India: Palaeobiogeographical insights
Geophysical data suggested a minimum of 35 Ma physical isolation for the Indian plate from the time of its separation from Madagascar around 88 Ma ago to its final collision with Asia in the
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Vicariant Origin of Malagasy Reptiles Supports Late Cretaceous Antarctic Land Bridge
The data provide strong, independently corroborated evidence for a contiguous Late Cretaceous Gondwana, exclusive of Africa and connected via Antarctica, and the first temporal evidence linking the vicariant origin of extant Malagasy vertebrates to a single geologic event.
Discovery of a new family of amphibians from northeast India with ancient links to Africa
The discovery of a previously overlooked, ancient lineage and radiation of caecilians from threatened habitats in the underexplored states of northeast India is reported and recognized as a new family of modern amphibians.
Biogeographic and evolutionary implications of a diverse paleobiota in amber from the early Eocene of India
Cambay amber preserves a uniquely diverse and early biota of a modern-type of broad-leaf tropical forest, revealing 50 Ma of stasis and change in biological communities of the dipterocarp primary forests that dominate southeastern Asia today.
Indian Cretaceous Terrestrial Vertebrates: Cosmopolitanism and Endemism in a Geodynamic Plate Tectonic Framework
  • A. Sahni
  • Geology, Environmental Science
  • 2010
The Indian stratigraphic record with well documented Mesozoic and Early Tertiary terrestrial biotas is now adequate to shed light on the geodynamic chronology of the subcontinent during the rift,


Explosive Evolution in Tertiary Birds and Mammals
The traditional view of avian evolution over the past century is that of sluggish gradualism, in which many living orders of birds are thought to have originated from the mid-Cretaceous or so (1),
Paleontological view of the ages of the Deccan Traps, the Cretaceous/Tertiary boundary, and the India-Asia collision
Volcanism in the Deccan Traps of India occurred over at most three magnetic chrons, centered on a main reversed chron. Paleontological data indicate that this reversed chron must coincide with 29R,
Growing up with dinosaurs: molecular dates and the mammalian radiation.
Paleobiogeography of Indo-Pakistan: A Response to Briggs, Patterson, and Owen
It is suggested that Briggs's first conclusion that only an expanding Earth model could explain the paleoposition of the continents is incorrect and that there is no evidence that drifting Indo-Pakistan prevented faunal exchange between eastern and western parts of the Indian Ocean.
Late Cretaceous and paroxysmal Cretaceous/Tertiary extinctions
The various geological signatures at Cretaceous/ Tertiary time including iridium and other associated elements, microspherules, and shock deformation features are compatible with the suggestion that
Complete mitochondrial genome sequences of two extinct moas clarify ratite evolution
This first molecular view of the break-up of Gondwana provides a new temporal framework for speciation events within other Gondwanan biota and can be used to evaluate competing biogeographical hypotheses.
A molecular timescale for vertebrate evolution
The clock-like accumulation of sequence differences in some genes provides an alternative method by which the mean divergence time can be estimated, and the molecular times agree with most early and late fossil-based times, but indicate major gaps in the Mesozoic fossil record.
Evaluating trans-tethys migration: an example using acrodont lizard phylogenetics.
Three historical events may be responsible for the sharp faunal barrier between Southeast Asia and Australia-New Guinea, known as Wallace's line: primary vicariance caused by plate separations, secondary contact of Southeast Asian plates with Eurasia, leading to dispersal from Eurasia into Southeast Asia, and introduction of different biotic elements to Asia by way of separate Gondwanan plates.
Impact did not trigger Deccan volcanism: Evidence from Anjar K/T Boundary intertrappean sediments
Many hypotheses including asteroidal and cometary impacts, Deccan volcanism, impact induced volcanism and coincidental impact and volcanism have been put forth to explain the observed enhancement of