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What Era is referred to as the "Age of Reptiles."
dinosaurs appeared during what period
Marine reptiles-predators in Mesozoic seas
plesiosaurs, ichthyosaurs, and mosasaurs
The earliest known true bird
Mammals first appeared on Earth during the ........
Triassic were small and rodent-like.
Major advances in plants also occurred during .........
The flowering plants or angiosperms first appeared......
in the Early Cretaceous Period and dominated during all of later geologic time
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