The Mesozoic age was an era that was an interval of geological time from about 252 to 66 million years before the 20th century.
It was also called the Age of Reptiles, a phrase introduced by a 19th century paleontologist, who viewed it as dominated by reptiles such as dinosaurs.
On Earth-Two, a Tyrannosaurus Rex called the Arctic Monster, was found frozen in Siberia by a Alfred R. Ley and his team of paleontologists. It was believed that the dinosaur had been frozen since the Mesozoic age.
Mesozoic age at Wikipedia
- ↑ As seen in the animated Superman film The Arctic Giant (1942).
- ↑ As seen in The Arctic Giant.