saurischian: Quick Facts

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Facts

Also Known As	Saurischia

Photos

Two labeled illustrations compare dinosaur pelvic structures: the saurischian pelvis on the left with forward-pointing pubis, and the ornithischian pelvis on the right with backward-pointing pubis, both showing ilium, ischium, and pubis bones.

Illustration of Troodon, a slender, birdlike dinosaur from the late Cretaceous, shown with large eyes, a long tail, and clawed hands, with a scale bar and comparison to a modern bird.

Illustration of a massive Brachiosaurus dinosaur with a long neck and nostrils above its eyes, shown beside a car and two people for scale. Measurement bars indicate its great size, and text provides details about its period, length, height, and locations.

Illustration comparing the hip bones of two dinosaurs: a saurischian pelvis highlighted within an Allosaurus and an ornithischian pelvis highlighted within a Stegosaurus, with detailed drawings of each pelvis type shown beside the respective dinosaur.

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Topics

Sauropodomorpha theropod feathered dinosaur Giganotosaurus Archaeopteryx Carcharodontosaurus sauropod Oviraptorosauria Eoraptor prosauropod pterosaur ichthyosaur Titanoboa sauropterygian ornithischian mosasaur Marasuchus phytosaur Euparkeria Mesosaurus

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