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Science 23 November 2007:
Vol. 318. no. 5854, p. 1237
DOI: 10.1126/science.318.5854.1237a
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News Focus

SOCIETY OF VERTEBRATE PALEONTOLOGY MEETING:
Jaw Shows Platypus Goes Way Back

Erik Stokstad

A reanalysis of fossil jaws from Australia, presented at the Society of Vertebrate Paleontology's annual meeting, held here from 17 to 20 October, suggests it belonged to a platypus that lived at least 112 million years ago, almost twice the age of the oldest previously known monotreme.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)