Sumantamay Bag
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Meet The Pint-Size Ancient Ancestor Of Dinosaurs Discovered In Madagascar#tinydinosaur #Triassic #Madagascar A pint-size predator to bugs may provide scientists clues about the ancient ancestors of #dinosaurs and #pterosaurs. Standing about 4 inches tall, Kongonaphon kely could be one of the last common ancestors of all dinosaurs and pterosaurs, an extinct flying #reptile, and explain some of their physical characteristics and traits. The discovery and description of the fossil of #Kongonaphon #kely – which means "tiny bug slayer" – could provide scientists big insights since the species was much smaller than most dinosaurs. "There's a general perception of dinosaurs as being giants," Christian Kammerer, a research curator in paleontology at the North Carolina Museum of Natural Sciences, said in a statement. "But this new animal is very close to the divergence of dinosaurs and pterosaurs, and it’s shockingly small." The findings were published in the Proceedings of the National Academy of Sciences. The ancient animal's #fossils date back 237 million years and were discovered in 1998 in Madagascar, said John Flynn, curator of fossil mammals at the American Museum of Natural History. "It took some time before we could focus on these bones, but once we did, it was clear we had something unique and worth a closer look," Flynn said in a statement. "Recent #discoveries like Kongonaphon have given us a much better understanding of the early evolution of ornithodirans. Analyzing changes in body size throughout archosaur evolution, we found compelling evidence that it decreased sharply early in the history of the dinosaur-pterosaur lineage," Kammerer said. The study found that giant dinosaurs, which went extinct around 66 million years ago, originated from extremely tiny #ancestors. The fossil also yielded more details about the #specimen's life. Researchers believe signs of wear on its teeth are evidence it ate insects. A shift to an insectivore lifestyle - linked to small body size - may have helped early ornithodirans survive as the world changed and they needed to find a new niche. They occupied a different niche to their mostly meat-eating peers - meaning they would not have been rivals. And fuzzy skin coverings - from simple filaments to feathers - that were common in dinosaurs and pterosaurs may have started in Kongonaphon for thermo-regulation. Heat retention in small bodies is difficult and the mid-late Triassic was a time of temperature extremes - with sharp shifts between hot days and cold nights. Discovery of this tiny relative of dinosaurs and pterosaurs emphasises the importance of Madagascar's fossil record for improving knowledge of vertebrate history during times that are poorly known in other places. Some 251 million years ago, at the end of the Permian period, a mass extinction wiped out most of life on Earth. In its wake arose a group of egg-laying reptile pre-cursors called #archosaurs, the common ancestors of dinosaurs, flying reptiles known as pterosaurs and crocodiles. At some point during the next period, the Triassic, pterosaurs and dinosaurs split off from the crocodile lineage. Kongonaphon is another piece in the jigsaw. Text Source: https://www.usatoday.com/story/news/nation/2020/07/07/kongonaphon-kely-ancient-dinosaur-ancestor-tiny-had-fuzzy-skin/5389075002/ https://www.dailymail.co.uk/sciencetech/article-8494627/Tiny-4-inch-tall-dinosaur-relative-roamed-Madagascar-200million-years-ago.html