Dinosaur Tissue (un)found

[Deacon]

Concerning the reports of soft dinosaur tissue/blood found in fossils a few years back.

See: Scientists recover T. rex soft tissue
70 million-year-old fossil yields preserved blood vessels [LINK]

Further research reveals that the conclusions were wrong; the organic matter was not from a dinosaur but bactera that collected within the cavity left by the critter.

Did Dinosaur Soft Tissues Still Survive? New Research Challenges Notion [LINK]

ScienceDaily (July 30, 2008) — Paleontologists in 2005 hailed research that apparently showed that soft, pliable tissues had been recovered from dissolved dinosaur bones, a major finding that would substantially widen the known range of preserved biomolecules.

...n a paper published July 30 in PloS ONE, a journal of the open-access Public Library of Science, Kaye and his co-authors contend that what was really inside the T. rex bone was slimy biofilm created by bacteria that coated the voids once occupied by blood vessels and cells.

He likens the phenomenon to what would happen if you left a pail of rainwater sitting in your backyard. After a couple of weeks you would be able to feel the slime that had formed on the inner walls of the bucket.

"If you could dissolve the bucket away, you'd find soft, squishy material in the shape of the bucket, and that's the slime," Kaye said. "The same is true for dinosaur bones. If you dissolve away the bone, what's left is biofilm in the shape of vascular canals."