from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various herbivorous ornithischian dinosaurs of the group Stegosauria of the Jurassic and Cretaceous Periods, having rows of upright plates or spikes on the back, spikes on the tail, and a small head with a beaked mouth.

from The Century Dictionary.

  • Of or pertaining to the Stegosauria, or having their characters.
  • noun A dinosaur of the order Stegosauria.


from The American Heritage® Dictionary of the English Language, 4th Edition

[From New Latin Stegosauria, group name, from Stegosaurus, type genus; see stegosaurus.]


  • The supposed stegosaurian track Deltapodus Whyte & Romano, 1994 (Middle Jurassic of England) is sauropod-like, elongate and plantigrade, but many blunt-toed, digitigrade, large ornithopod-like footprints (including pedal print cast associated with the manus of Stegopodus Lockley & Hunt, 1998) from the Upper Jurassic of Utah, better fit the stegosaurian foot pattern.

    Neoceratopsian publications for 2008

  • Then the soaring, stegosaurian ridges of the Brooks Range gave way to softer hills nodding with Arctic poppy, which ebbed into recumbent plains of sedge and grass that fell away to the earth's curved edge.

    The Great Alaskan Cast and Blast

  • Parts of faces appeared, wings or a sundial sprouted from ancient torsos, or an oval stone set in silver became "Dinosaur Sperm," the silver frame extending out to form a flagellate tail trimmed with stegosaurian ridges.

    Embryography of a jeweler Raúl Ybarra


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