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  1. Dimetrodon - Wikipedia

    Dimetrodon (/ daɪˈmiːtrəˌdɒn / [1] or / daɪˈmɛtrəˌdɒn / ⓘ; [2] lit. 'two measures of teeth') is an extinct genus of sphenacodontid synapsid that lived during the Cisuralian (Early Permian) epoch of the …

  2. 10 Facts About Dimetrodon, the Non-Dinosaur Dinosaur - ThoughtCo

    May 11, 2025 · Dimetrodon lived millions of years before dinosaurs and is actually a prehistoric reptile. Dimetrodon is known for its big sail, which it used to control its body temperature. There are over 15 …

  3. Dimetrodon | Sail-Backed Reptile, Prehistoric Predator | Britannica

    Dimetrodon, (genus Dimetrodon), extinct relative of primitive mammals that is characterized by a large, upright, sail-like structure on its back. Dimetrodon lived from about 286 million to 270 million …

  4. Dimetrodon Guide - Dinosaur.org

    Dimetrodon is a mammalian synapsid from the Early Permian period, predating dinosaurs by about 40 million years. It features a distinctive sail used for thermoregulation and insulation in swampland …

  5. Dimetrodon - Facts and Beyond | Biology Dictionary

    Sep 17, 2020 · The Dimetrodon is a genus of predatory carnivores that lived during the Permian period, 280 – 260 million years ago. Although they are sometimes grouped with dinosaurs, these …

  6. Dimetrodon - Description, Habitat, Image, Diet, and Interesting Facts

    This is the story of Dimetrodon, a powerful apex predator with a truly iconic feature—the enormous sail on its back. While visually similar to dinosaurs, Dimetrodon wasn’t one at all. It belonged to a group …

  7. Dimetrodon – Facts, Physical Traits, Diet, Behavior, and Role in ...

    Discover the Dimetrodon, a sail-backed prehistoric reptile. Learn about its physical features, habitat, diet, behavior, reproduction, ecosystem role, and cultural importance.

  8. Are Dimetrodons Dinosaurs? Debunking a Common Myth

    Dec 16, 2025 · Dimetrodon is not a dinosaur, nor is it a reptile. The animal belongs to a major evolutionary branch that split off from the lineage leading to reptiles and birds long before dinosaurs …

  9. Dimetrodon Facts, Species, Discovery, Behavior and Adaptation

    Apr 4, 2022 · Dimetrodon is a genus of extinct synapsid that lived around 295–272 million years ago. It belongs to the family Sphenacodontidae. The genus was first described in 1878, and since then, …

  10. Dimetrodon - Wikiwand

    Dimetrodon was probably one of the apex predators of the Cisuralian ecosystems, feeding on fish and tetrapods, including reptiles and amphibians. Smaller Dimetrodon species may have had different …