Tuesday, July 25, 2006

 

Rare Discovery: Fossilized Bone Marrow is 10 Million Years Old

Fossilized Bone Marrow is 10 Million Years Old: Scientists have extracted intact bone marrow from the fossilized remains of 10-million-year-old frogs and salamanders.

The finding, detailed in the August issue of the journal Geology, is the first case of fossilized bone marrow ever to be discovered and only the second report of fossilized soft tissue. In June of 2005, scientists announced they had found preserved red blood cells from a Tyrannosaurus rex leg bone (see here).

'It pushes back the boundary for how far [soft tissue] fossilization can go,' said study leader Maria McNamara of University College Dublin in Ireland.

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