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Period: 150 BCE to 66 BCE
Jurassic Period
145.5 million years ago -
145 BCE
End of Jurassic period
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86 BCE
Prosaurolophus
Prosaurolophus was a herbivore. It lived in the Cretaceous period and inhabited North America.Existed from 85.8 million years ago to Maastrichtian Age. -
83 BCE
Hesperonychus
Hesperonychus was a carnivore. It lived in the Cretaceous period and inhabited North America. Its fossils have been found in places such as Alberta (Canada). Lived in a terrestrial habitat
Was a carnivore
Reproduced by laying eggs
4 different specimens have been found by paleontologists -
70 BCE
Albertonectes
Existed from Campanian Age to 70.6 million years ago Albertonectes was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. Albertonectes lived during the Late Cretaceous and resided in North America. -
66 BCE
Tyrannosaurus
Tyrannosaurus was a carnivore. It lived in the Cretaceous period. Existed from Campanian Age to 66 million years ago