# Scientists Discover 115-Million-Year-Old Dinosaur Blood Traces Molecular fingerprints in fossilized bones reveal new biological insights without enabling dinosaur cloning. - **Source:** [Science & tech Articles | Mail Online](https://www.dailymail.com?ns_mchannel=rss&ns_campaign=1490&ito=1490) - **Published:** 2026-11-02 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/0db30d44-94b9-40ac-9c18-193affe3fab5 ## Ancient Biological Breakthrough Researchers from Curtin University identified fossilized red blood cells within the leg bone of an Aratasaurus museunacionali. This specimen, dating back 115 million years, contains heme, the oxygen-carrying component of hemoglobin. This discovery marks the first time scientists have chemically confirmed the presence of hemoglobin-derived compounds within such ancient dinosaur fossil remains. ## The Role of Hausmannite The remarkable preservation of these delicate biological structures is attributed to specific environmental conditions post-mortem. The dinosaur was rapidly buried in a low-oxygen environment, where the mineral hausmannite acted as a natural time capsule. This unique geological setting protected the organic material from degradation, allowing molecular fingerprints to survive for millions of years. ## Debunking Jurassic Park Myths Despite the excitement surrounding the find, experts clarify that no recoverable dinosaur DNA was found. Professor Kliti Grice and other geneticists emphasize that without a complete genome, cloning or de-extinction remains impossible. The discovery provides chemical data about the animal's physiology rather than the genetic instructions required to recreate a living creature. ## Physiological Insights Gained This study offers a direct molecular window into the physiology of extinct animals. By detecting intact heme-derived molecules, researchers can now better understand the biological functions of theropod dinosaurs. This evidence extends the known fossil record of blood and proves that fossils can retain a chemical memory of the living animal's internal systems. ## Specimen Profile and Size The Aratasaurus museunacionali was a small, fast-running theropod predator. Scientists estimate the juvenile specimen measured approximately 3.1 meters in length and weighed 34 kilograms. As a young adult of about four years, it belonged to the same broad lineage that eventually gave rise to giant predators like T. rex and modern avian species. ## Future Research Potential The methodology developed for this study allows palaeontologists to extract new information from existing museum collections. Researchers are now questioning how much biological data remains hidden in fossils previously thought to be inert. This shift in focus prioritizes chemical analysis as a standard tool for investigating the biology and behavior of long-extinct creatures. ## Context of Mass Extinction While this dinosaur lived during the Early Cretaceous, the species eventually vanished during the Cretaceous-Tertiary extinction event 66 million years ago. Scientific consensus links this demise to a massive asteroid impact at the Chicxulub Crater. The resulting seismic activity and global ash plumes created environmental conditions that proved fatal for the planet's dominant reptiles. ## Scientific Significance of Findings This discovery fundamentally changes how palaeontologists view fossil preservation. By proving that biological information can survive for over 100 million years, the team has opened a new frontier in evolutionary biology. Future investigations will likely focus on identifying similar molecular fingerprints in other specimens to reconstruct the complex physiological history of prehistoric life. ## Sources covering this story - https://www.dailymail.com/sciencetech/article-16259143/Real-life-Jurassic-Park-Scientists-dinosaur-BLOOD.html?ns_mchannel=rss&ns_campaign=1490&ito=1490 — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._