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Prehistoric footprints discovered in Wyoming revealed the earliest evidence of mammals hanging out by the ocean. While the rocks at the Hanna Formation are now located hundreds of miles from the ocean, things were much different about 58 million years ago when Wyoming was on the coast of the ocean. Two sets of fossilized prints were found by geologist Anton Wroblewski, who is an adjunct associate professor in the Department of Geology and Geophysics, as well as applied biodiversity scientist Bonnie Gulas-Wroblewski from the Texas A&M Natural Resources Institute. It is believed that one set of the tracks were left by a ....
E-Mail Fossilised footprint tracks, recently discovered within the Hanna Formation in Wyoming, USA, which have been dated to 58 million years ago, may represent the earliest evidence of mammals gathering by the sea, according to a study published in Scientific Reports. The findings suggest that mammals may have first used marine habitats at least 9.4 million years earlier than previously thought, in the late Paleocene (66-56 million years ago), rather than the Eocene (56-33.9 million years ago). Drs. Anton Wroblewski and Bonnie Gulas-Wroblewski examined and photographed over 1,000 metres of fossilised footprints in an area dated back to 58 million years ago by plant and pollen fossils. The authors identified various different tracks. One set showed relatively large, five-toed footprints, comparable to the foot size of a modern-day brown bear, another showed medium-sized, four-toed footprints. The authors suggest that the five-toed prints were made by Coryphodon, a ....
Sunlight revealed the first discovery of its kind in the United States and the largest in the world of fossilized tracks of an ancient hippo that wandered beachfront property in Wyoming millions of years ago. This is how researchers from Salt Lake City found the site. ....
A set of 58-million-year-old footprints suggest hippo-like mammals were living by the sea millions of years before one group of mammals became whales ....