Scientists in Chile's Patagonia region are unearthing the southernmost dinosaur fossils recorded outside Antarctica, including remains of megaraptors that would have dominated the area's food chain before their mass extinction.
Fossils of megaraptors, a carnivorous dinosaur that inhabited parts of South America during the Cretaceous period some 70 million years ago, were found in sizes up to 10 meters long, according to the Journal of South American Earth Sciences.
The remains, recovered from Chile's far south Rio de las Chinas Valley in the Magallanes Basin between 2016 and 2020, also include some unusual remains of unenlagia, velociraptor-like dinosaurs which likely lived covered in feathers. "It could be a new species, which is very likely, or belong to another family of dinosaurs that are closely related," he said, adding more conclusive evidence is needed.
INACH's Leppe pointed to a sharp drop in temperatures over present-day Patagonia and waves of intense cold lasting up to several thousand years, in contrast to the extremely warm climate that prevailed for much of the Cretaceous period.
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