Post by Deinobrontornis on Nov 8, 2011 20:03:51 GMT -5
[a href="Beelzebufo - Beelzebufo ampinga"]Beelzebufo - Beelzebufo ampinga[/a]
Beelzebufo ampinga was a particularly large species of prehistoric frog first identified in 2007. Common names assigned by the popular media include "Devil Frog", "Devil Toad", and "The Frog From Hell". Fossils of Beelzebufo have been recovered from strata of the Maevarano Formation in Madagascar, dating to the late Cretaceous Period, some 70 million years ago.
Etymology:
The generic name Beelzebufo is a portmanteau of Beelzebub (a Semitic deity sometimes identified as one of the chief lieutenants, or persona of the Christian Devil) and bufo (Latin for "toad"). The specific name ampinga means "shield" in the language of Malagasy.
Description:
The species may have grown to over 40 centimeters (16 in) and 4 kilograms (8.8 lb) — larger than any living frogs, including the largest known species, the goliath frog, which can be up to 32 centimeters (13 in). The bones of the skull roof shows a rugous external surface, indicating that at least parts of the head may have borne scutes.
Biogeography:
Although the fossils of Beelzebufo appear in what is now Madagascar, which, still attached to India, had split from the coast of Somalia in the earliest stage of the late Jurassic, it superficially resembles its closest living relatives, the Ceratophryinae or horned toads of South America, of which the largest today grow to 15 cm (6 in.) long. As West Gondwana (South America) rifted away from East Gondwana, opening from the north and spreading southward, open marine conditions in the widening South Atlantic obtained by about 110 mya, isolating the amphibians on either side; the last common ancestor of Beelzebufo and the South American ceratophryinae is most likely to have existed before that date and probably before seafloor-spreading demonstrates the earlier isolation of Madagascar-India, a very long time undocumented by fossils. Alternatively the history of archaeogeography could be rewritten: Richard Lane, program director in NSF's Division of Earth Sciences, said "The occurrence of this frog in Madagascar and its relatives' existence in South America provides strong evidence that the supercontinent Gondwana 'disassembled' during the latest part of the Cretaceous."
Lifestyle:
In comparison with the living horned frogs, Beelzebufo was a predator whose expansive mouth allowed it to eat relatively large prey, perhaps even juvenile dinosaurs. Beelzebufo was probably a dry-land frog, living in arid environments and ambushing prey.
Discovery:
The first fossil fragments were found in 1993 by David W. Krause of New York's Stony Brook University, but it took 14 years for scientists Susan E. Evans, Marc E. H. Jones, and Krause to assemble enough data for publication in the Proceedings of the National Academy of Sciences, the journal of the United States National Academy of Sciences. Some 75 fossil fragments have been found. Researchers have been able to reconstruct parts of the frog's skeleton, including nearly the entire skull.
Beelzebufo ampinga was a particularly large species of prehistoric frog first identified in 2007. Common names assigned by the popular media include "Devil Frog", "Devil Toad", and "The Frog From Hell". Fossils of Beelzebufo have been recovered from strata of the Maevarano Formation in Madagascar, dating to the late Cretaceous Period, some 70 million years ago.
Etymology:
The generic name Beelzebufo is a portmanteau of Beelzebub (a Semitic deity sometimes identified as one of the chief lieutenants, or persona of the Christian Devil) and bufo (Latin for "toad"). The specific name ampinga means "shield" in the language of Malagasy.
Description:
The species may have grown to over 40 centimeters (16 in) and 4 kilograms (8.8 lb) — larger than any living frogs, including the largest known species, the goliath frog, which can be up to 32 centimeters (13 in). The bones of the skull roof shows a rugous external surface, indicating that at least parts of the head may have borne scutes.
Biogeography:
Although the fossils of Beelzebufo appear in what is now Madagascar, which, still attached to India, had split from the coast of Somalia in the earliest stage of the late Jurassic, it superficially resembles its closest living relatives, the Ceratophryinae or horned toads of South America, of which the largest today grow to 15 cm (6 in.) long. As West Gondwana (South America) rifted away from East Gondwana, opening from the north and spreading southward, open marine conditions in the widening South Atlantic obtained by about 110 mya, isolating the amphibians on either side; the last common ancestor of Beelzebufo and the South American ceratophryinae is most likely to have existed before that date and probably before seafloor-spreading demonstrates the earlier isolation of Madagascar-India, a very long time undocumented by fossils. Alternatively the history of archaeogeography could be rewritten: Richard Lane, program director in NSF's Division of Earth Sciences, said "The occurrence of this frog in Madagascar and its relatives' existence in South America provides strong evidence that the supercontinent Gondwana 'disassembled' during the latest part of the Cretaceous."
Lifestyle:
In comparison with the living horned frogs, Beelzebufo was a predator whose expansive mouth allowed it to eat relatively large prey, perhaps even juvenile dinosaurs. Beelzebufo was probably a dry-land frog, living in arid environments and ambushing prey.
Discovery:
The first fossil fragments were found in 1993 by David W. Krause of New York's Stony Brook University, but it took 14 years for scientists Susan E. Evans, Marc E. H. Jones, and Krause to assemble enough data for publication in the Proceedings of the National Academy of Sciences, the journal of the United States National Academy of Sciences. Some 75 fossil fragments have been found. Researchers have been able to reconstruct parts of the frog's skeleton, including nearly the entire skull.
