Coincidences are often hard to explain. Sometimes they can make people smile, but sometimes they make people sigh. Recently, coincidences discovered by paleontologists in France and Switzerland have helped them solve a scientific problem: 150 million years ago, a sea turtle trampled into pieces by dinosaurs, proved that they had once lived in symbiosis.
Jurass Mountain is located on the French-Swiss border, with an altitude of about 1,000 meters and is covered with many caves, streams and hot springs. As early as the early 19th century, French paleontologist Bronnial discovered that there were many marine limestones on the Jurassic Mountains with a history of more than 100 million years, so he called that period the "Jurassic Period" (199.6 million BC to 145.5 million BC), which is also the origin of the name Jurassic .
Jurass Mountain has always been an important place for paleontologists to investigate and research. As early as 2007, researchers found a unique turtle fossil here. As the excavation area expanded, more than 100 fossils of this turtle were found, and there are 15,000 dinosaur footprints around them.
Among these turtle fossils, one looks very unique because it was almost stepped into pieces in an instant. Judging from the traces of damage, this kind of breakage is not caused by time and preservation conditions. The most likely "killer" is a large dinosaur that lived 150 million years ago.
Researchers believe that this tragic "coincidence" happened in the Jurassic period, when the turtle was crushed under the feet of a giant sauropod dinosaur . "The traces of trampling are very obvious, which shows that the turtle and dinosaur were once in the same ancient environment," said Daniel Marty, a paleontologist at the Basel Museum of Natural History. At the time of the incident, the turtle might have been laying eggs, or traveling through mudflats to find beaches that can lay eggs, or it may have been trapped in muddy flats and died before being crushed by dinosaurs.
Paleontologists are currently more inclined to the first explanation. Although the Jurassic Mountains are far away from the ocean, the locations of various continents have undergone tremendous changes since the Jurassic, so it is very likely that some 150 million years ago, these turtles went ashore to find places to breed and lay eggs, but for some of them, it has become a journey without going back.
Researchers said that the discovery of this fossil is very important in rebuilding ancient ecosystems, and it clearly tells us that they have lived together.
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