Story highlights Researchers found preserved soft tissue in a 195 million-year-old dinosaur rib

The soft tissue included collagen and protein believed to be derived from the dinosaur's blood

(CNN) It might be the oldest soft tissue sample ever found. Researchers discovered ancient collagen and protein remains preserved in the ribs of a dinosaur that walked the Earth 195 million years ago.

No, this doesn't mean "Jurassic Park" is about to become a reality. But finding such well-preserved organic remains from one of the oldest dinosaurs, a Lufengosaurus, is unprecedented.

"This finding extends the record of preserved organic remains more than 100 million years," the researchers said in their study, published in the journal Nature Communications on Tuesday. The researchers were from Taiwan, China and Canada.

A closer look at vascular canals in the rib.

Previously found collagen fragments dated back 75 million or 80 million years ago. The location of the newly discovered collagen was also surprising.

"Usually, people have looked and found collagen in the big, massive limb bones, not in the more delicate ribs," said Robert Reisz, one of the authors of the study and a paleontologist at University of Toronto Mississauga.

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