Evolution supposed that 1. 7 million T rexes walked on Earth

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Joel Kontinen

According to evolution, the number of Tyrannosaurus rex was 1.,7 million of these creatures lived between 68 and 65.5 million years  ago. the previous study, published by Science In April 2021 put the figure at 2.5 millions.

 But the study did not question the age of the dinosaurs. 

Source;

Baker,  Harry. 2023,  1.7 billion Tyrannosaurus rexes walked the Earth before going extinct, new study estimates, Live Science,  16 May,