2023-06-22 04:16:42
Human-sized ammonites once roamed abundantly on both sides of the Atlantic Ocean. and is one of the most successful creatures in the world. This discovery was made in Germany in 1895. It is an incomplete fossil. But that’s enough to show the enormous size of the ammonite species ‘Parapuzosia seppenradensis’, which measures 1.8 meters in diameter. According to a new analysis published in the journal PLOS One, scientists estimate that If it’s a complete fossil They can be as big as 2.5 to 3.5 meters, raising the question of how, when and why did they evolve to such impressive size? “We have this world-famous fossil in Germany. And now we can tell its story,” said Christina Ifrim, researcher and chief scientific officer at the Jura Museum. said the Jura-Museum, a natural history museum in Germany. More than 154 ammonite fossils were examined, including this largest one. This reveals that ammonites can vary greatly in size. from small to gigantic But most of the larger species evolved from the Late Jurassic period. and what is surprising is All large ammonites can be found on both sides of the Atlantic Ocean. Scientists have found that there are unusually high numbers of adult lemurs in Britain and Mexico. which may indicate that it is their breeding ground “Obviously, these giants all happened at the same time more or less. On both sides of the Atlantic,” Ifrim said, “there must be a connection between the two populations. because they show the same evolution same time.” Although the ammonites look like ‘nautilus’ (Nautilus) swimming today But they are not actually close relatives. Instead, ammonites are more closely related to organisms in the suborder Coleoidea, which includes octopus, squid and cuttlefish. is a clue to ammonite behavior. that when it breeds or hatches successfully It will go into the process of dying. as well as many species of modern octopus and squid. however There is still no answer to the question that How could they be this big? And how did they appear on both sides of the Atlantic Ocean? It’s likely that when the former predators got bigger, Ammonites had to grow bigger and evolve their shells accordingly. Subsequent fossil evidence, however, shows that by the time the ammonite reached its peak, it gradually became smaller. Back continues to expand What we do know for sure is that they went extinct along with the dinosaurs in a meteorite impact about 66 million years ago, leaving only fossil remains for us to learn about the great past of the ammonites. Compiled by Vitit BoromphichaichatkulPhotograph: Public Domain, via Wikimedia Commons Source Tags ammonite fossils
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