The end Cretaceous Northern Hemisphere fauna was dominated by Tyrannosaurids (such as Tyrannosaurus rex), hadrosaurs and ceratopsian ornithischian dinosaurs. Credit: Pedro Salas and Sergey Krasovskiy.
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The direct ancestor ...
(CNN) — The direct ancestor of Tyrannosaurus rex would have arrived in North America after crossing a land bridge from Asia, according to a new study. The report is the latest to weigh in on the ...
The piece illustrates the disparity of the Northern and Southern hemisphere’s evolution of terrestrial Cretaceous faunas after the Cretaceous Thermal Maximum. On the left, End Cretaceous Southern ...
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