A team of scientists analyzing a well-preserved Edmontosaurus fossil from South Dakota has discovered traces of collagen, a protein typically found in bone, dating back 66 million years. This breakthrough finding opens new doors in paleontology and deepens our understanding of dinosaur biology.
- Collagen traces confirmed in a 66-million-year-old Edmontosaurus fossil
- Multiple advanced tests used to rule out contamination
- Potential to unlock new insights about dinosaur biology and evolution
What happened
Scientists from the University of Liverpool and UCLA collaborated on an in-depth analysis of a remarkably intact Edmontosaurus sacrum retrieved from South Dakota’s Hell Creek Formation. Using protein sequencing and mass spectrometry, the team identified old collagen proteins embedded within the fossilized bone. The identification of hydroxyproline, an amino acid strongly tied to collagen, strengthened their confidence that these molecules are original to the dinosaur, not modern contaminants.
This finding is significant as it challenges the long-held belief that organic material degrades completely over millions of years, turning fossils into mere mineral replicas. The research, published in Analytical Chemistry in 2025, used multiple independent scientific methods to confirm the survival of these biomolecules, adding strong evidence to earlier controversial reports of soft tissues and proteins found in other dinosaur fossils.
Why it feels good
Uncovering genuine ancient proteins in dinosaur fossils is a thrilling development for science enthusiasts and paleontologists alike. It brings us closer than ever to understanding dinosaurs not just as skeletons, but as complex living organisms with rich biological makeup. This discovery offers hope that similar fossils collected from around the world may also harbor preserved biomolecules, ushering in a new era of paleontological research.
Moreover, the ability to study original proteins can revolutionize how we trace evolutionary relationships and insights into dinosaur physiology such as growth, aging, and even diseases. For anyone fascinated by the natural world and its prehistoric past, this breakthrough adds an exciting chapter to the story of life on Earth.
What to enjoy or watch next
Scientists now aim to revisit fossil collections amassed over the last century to search for overlooked protein preservation using modern techniques. This could rapidly expand the number of specimens available for molecular study and potentially reveal surprising connections between dinosaur species that bone shape alone cannot explain.
For those eager to keep up with related discoveries, upcoming paleontology conferences and scientific journals will likely feature cutting-edge research on fossil biomolecules. Documentaries and museum exhibits focused on fossil preservation may also update their narratives to include this exciting molecular evidence, bringing this fascinating science closer to the public.