Fossils of Some of the Last Dinosaurs in North America Have a Story to Tell
北美一些最后恐龙的化石有故事可述
A life reconstruction of Alamosaurus sanjuanensis, from the Naashoibito Member in the San Juan Basin of northwestern New Mexico, at the time of the dinosaurs’ extinction.
2025-10-24 746词 中等
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For much of the 20th century, people studying the end of the period when the asteroid struck, the Cretaceous, have focused on the fossil-rich badlands around Montana and Wyoming. The area produced species like Tyrannosaurus rex, Triceratops and the duck-billed Edmontosaurus.
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