Yes! The dinosaurs lived from about 230 million years ago until they went extinct 65 million years ago. This was during the Mesozoic Era, the Age of Reptiles.

Mesozoic Era "Age of Reptiles" 245 to 65 mya	Cretaceous Period 146 to 65 mya		Upper 98-65 mya	High tectonic and volcanic activity. Continents have a modern-day look. Minor extinction 82 mya. Ended with large extinction (the K-T extinction) of dinosaurs, pterosaurs, ammonites, about 50 percent of marine invertebrate species, etc., probably caused by asteroid impact.
			Lower 146-98 mya	The heyday of the dinosaurs. The first flowering plants and Crocodilians appear. Minor extinctions at 144 and 120 mya.
	Jurassic Period 208 to 146 mya			Many dinosaurs, including the giant Sauropods. The first birds appear (Archaeopteryx). Many ferns, cycads, gingkos, rushes, conifers, ammonites, and pterosaurs. Minor extinctions at 190 and 160 mya.
	Triassic Period 245 to 208 mya			The first dinosaurs, mammals, and crocodyloformes appear. Mollusks are the dominant invertebrate. Many reptiles, for example, turtles, ichthyosaurs. Triassic period ends with a minor extinction (35% of all animal families die out).

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