It had been collecting dust in a drawer for decades
Modern paleontology right now has two large fields of work, one of them being expeditions in remote places and the other being museum shelves. And it is no wonder, since the greatest discoveries are not made by breaking stones under the sun, but by cleaning dust from drawers that have been closed for decades. This is exactly what just happened to an antarctic fossil which, after years stored in the United Kingdom, has revealed to be a key piece in understanding our planet’s past. A new test. We are not facing the “first dinosaur fossil in Antarctica”, but rather we are facing the first fossil of this type that has been identified after a long wait in a ‘drawer’ of a museum archives. The files. The history of this bone is, in itself, fascinating, since, as has documented the BBC, the fossil has been in the British Antarctic Survey collection. For decades, it remained in a taxonomic limbo and although its existence and its Antarctic origin were known, the anatomical scrutiny necessary to classify it accurately had not been carried out. Now, a new study has put an end to the mystery, as researchers have reexamined the morphology of the bone and concluded that it belongs to a titanosaur sauropod dinosaur from the Late Cretaceous. Your base. To reach this conclusion we did not start from scratch, but there were already previous records about the presence of sauropods in Antarctica. What is interesting about this new study is that it connects the dots, providing the formal and rigorous identification that this piece of the archive needed to enter the history books. A green Antarctica. Identifying a titanosaur in Antarctica raises a mental image that clashes head-on with the current landscape of the continent. Right now we know that titanosaurs were a group of sauropods that included the largest land animals to ever walk the Earth. But the question we ask ourselves is clear: What was an animal of these proportions doing in an ice desert? The answer is that the Antarctica of the Late Cretaceous period was nothing like today’s Antarctica. Specifically, about 70 million years ago, the continents were arranged differently, since South America, Antarctica and Australia formed intermittent land connections. This means that Antarctica was not covered by kilometers of perennial ice, but instead was home to vast forests of conifers and ferns, an ecosystem rich and temperate enough to support the migration and diet of these gigantic herbivores. Its importance. From a scientific and informative point of view, the value of this news does not lie in a recent heroic expedition under snow storms, but in the relevance of institutional collections. The BAS fossil catalog shows that we still have fragments of Earth’s history gathering dust, waiting for current scanning technology or expert review to give them their true meaning. This fossil, now officially recognized in primary scientific literature, is not “the first Antarctic dinosaur,” but it is definitive confirmation that, in Earth’s remote past, there was no barrier or latitude that could resist the footsteps of a titanosaur. In Xataka | We thought that human beings began to walk in Africa. This 7.2 million-year-old fossil says otherwise