Susannah Maidment et al. & Natural History Museum, London · Original image & credits · CC BY 4.0
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Stegosaurus
Meet stegosaurus—one more extraordinary life to discover.
Discover the expedition atlasA reference overview
Stegosaurus (; lit. 'roof-lizard') is a genus of extinct herbivorous four-legged armored dinosaurs from the Late Jurassic, characterized by the distinctive kite-shaped upright plates along their backs and spikes on their tails. Fossils of the genus have been found in the western United States and in Portugal, where they are found in Kimmeridgian- to Tithonian-aged strata, dating to between 155 and 145 million years ago. Of the species that have been classified in the upper Morrison Formation of the western US, only three are universally recognized: S. stenops, S. ungulatus and S. sulcatus.
Overview excerpt from Wikipedia contributors · Stegosaurus, under CC BY-SA 4.0. Excerpt may be shortened. Overview retrieved 2026-10-09.
