Ancient frog marrow found

This Discovery News writeup gets it wrong in the first line:

The first fossilized bone marrow has been found in the bones of 10-million-year-old frogs, salamanders and tadpoles by scientists working in northeastern Spain, the leader of an international research team said.

The significance of the find is precisely that the marrow isn't fossilized, as comes out a few paragraphs later:

"The original organic material is still there," according to McNamara, whose research was published in this month's Geology, the journal of the Geological Society of America.

"It is still organic in composition, whereas most traces of soft tissues you find in the fossil record, which are very rare anyway, have rotted away and just the shape of the tissue is preserved in mineral," she said.

Posted by David on August 3, 2006 10:09 AM