Scientists recover T. Rex soft tissue!!!!

[Gil]

Scientists recover T. rex soft tissue
70-million-year-old fossil yields preserved blood vessels



Tissue fragments from a Tyrannosaurus rex femur are shown at left, when it is flexible and resilient and when stretched (arrow) returns to its original shape. The middle photo shows the bone after it is air dried. The photo at right shows regions of bone showing fibrous character, not normally seen in fossil bone.


The field team used standard procedure as they excavated the bones, wrapping them in plaster jackets before transporting them.. This particular dinosaur fossil was too big to lift and they reluctantly cracked a thighbone.

Usually paleontologists put preservatives on fossils right away, but Schweitzer has been trying to find soft tissue in dinosaur fossils, so this one was left alone.

Source

[Dr. Solar Wolff]

From all the excitement over frozen mammoths, I thought that the flesh had to be kept at -20 or -30 degrees F. in order for the DNA not to degenerate. Certainly, that is not the case here so how much DNA information would be or could be preserved?

This is a great find nevertheless.

[Nadvojvoda Janez Kranjski]

Originally Posted by Dr. Solar Wolff

From all the excitement over frozen mammoths, I thought that the flesh had to be kept at -20 or -30 degrees F. in order for the DNA not to degenerate. Certainly, that is not the case here so how much DNA information would be or could be preserved?

This is a great find nevertheless.

The cut-off is about 50.000 years in ideal conditions.