History, Evolution, and The Darwin Debate

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Odest-Ever Reptile Embryos Unearthed

April 12th, 2012 · No Comments

Odest-Ever Reptile Embryos Unearthed

ScienceDaily (Apr. 11, 2012) — Dating back 280 million years or so, the oldest known fossil reptile embryos have been unearthed in Uruguay and Brazil. They belong to the ancient aquatic reptiles, mesosaurs. The study of these exceptionally well-preserved fossils suggests that mesosaurs were either viviparous[1] (pushing back this mode of reproduction by 60 million years) or that they laid eggs in advanced stages of development.

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