Dinosaurs may have left behind more than stone: researchers report evidence that a 66-million-year-old fossil still holds traces of original bone protein.
The finding centers on a remarkably well-preserved Edmontosaurus specimen from South Dakota, where scientists detected remnants of collagen, the main structural protein in bone. The result challenges a long-standing view in paleontology that fossilization wipes out all original organic material and leaves only mineralized remains behind.
If the evidence holds, dinosaur fossils could preserve molecular clues that scientists long assumed vanished forever.
Researchers reached that conclusion with advanced analytical tools, including mass spectrometry and protein sequencing, according to the report. Those methods let scientists look beyond the fossil’s outward structure and test whether any molecular signatures from the original animal still persist inside the bone.
Key Facts
- Scientists examined a 66-million-year-old Edmontosaurus fossil from South Dakota.
- Researchers detected signs of collagen, the primary protein in bone.
- The team used mass spectrometry and protein sequencing to analyze the fossil.
- The finding challenges the idea that fossilization destroys all organic material.
The implications reach beyond a single specimen. If reports of preserved proteins continue to withstand scrutiny, researchers could gain a new way to study dinosaur biology, fossil preservation, and the chemical pathways that let some tissues endure across deep time. The next step will likely focus on replication, contamination checks, and tests on other fossils—because if original molecules truly survive, paleontology may need to redraw the boundary between bone and biography.