in what period did the stegosaurus live
Stegosaurus (/ËstÉÉ¡ÉËsÉËrÉs/) is a genus of armored dinosaur. Fossils of this genus date to the Late Jurassic period, where they are found in Kimmeridgian to early Tithonian aged strata, between 155 and 150 million years ago, in the western United States and Portugal.