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the jurassic
During the Jurassic period.
Pterosaur
An allosaurus is an extinct, large, carnivorous dinosaur of the Jurassic period.
it had dinosaurs and many extinct animals
Plesiosaurs, apatosaurus (just about all the sauropods), praeornis, archaeopteryx (a Jurassic bird), Brachyopomorpha, Stephanoceras, Pleurosaurus--most of the Jurassic species did not survive beyond the Jurassic.
The ice age began at the end of the Jurassic period, a theory of why the dinosaurs became extinct. <33
the Dimorphodon is an extinct flying reptile that lived around the early Jurassic period
Like all dinosaurs, we still do not know how this prehistoric animal became extinct. it evolved though, because it lived in the Jurassic period of the mesosoic, and did not become extinct, but it evolved
Like all dinosaurs, we still do not know how this prehistoric animal became extinct. it evolved though, because it lived in the Jurassic period of the mesosoic, and did not become extinct, but it evolved
cute dinos went bye bye (:CommentDinosaurs went extinct on the C-T (Cretaceous/Tertiary) boundary. Not during the Jurassic Period.
the megatherium went extinct about 8,000 years ago