A recent study on dinosaur mummies has shed light on the ancient duck-billed dinosaurs that inhabited western North America over 60 million years ago. These fossils, revealing intricate external anatomical details on thin layers of ancient clay, unveiled hoofs on a dinosaur for the first time in reptilian history. The lead author of the study, paleontologist Paul Sereno from the University of Chicago, anticipates more hoof discoveries following this breakthrough.
Published in the journal Science, the research provides the most comprehensive depiction to date of duck-billed dinosaurs, also known as Edmontosaurus, which were prevalent during the Cretaceous Period. These herbivores, measuring nearly three meters in length, roamed in large herds akin to modern grazing mammals like cows. The study also demystifies how these “dinosaur mummies” formed, dispelling misconceptions about their preservation process.
The study highlights convergent evolution, showcasing similarities between the hoofs of these dinosaurs and those of later mammalian species like horses. By analyzing detailed fossils excavated in Wyoming, scientists unraveled the unique preservation process involving clay encasement and microbial hardening that left behind bone structures resembling the original creatures. This preservation technique, though unconventional on land, opens avenues for discovering more dinosaur mummies and gaining insights into their growth and behavior.
Experts emphasize the significance of uncovering such mummies, as each finding provides valuable information about prehistoric creatures. By combining these discoveries with existing fossil records, researchers can construct a vivid portrayal of duck-billed dinosaurs, offering a deeper understanding of their physical characteristics and lifestyle. Sereno regards this study as a groundbreaking achievement that enhances our knowledge of these ancient creatures.
