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Any of various herbivorous ornithischian dinosaurs of the group Ankylosauria of the Jurassic and Cretaceous Periods, having a squat armored body, a short neck, and a beaked mouth. Also called ankylosaur.

[From New Latin Ankylosauria, group name, from Ankylosaurus, type genus; see ankylosaurus.]

an′ky·lo·saur′i·an adj.
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1999): Ankylosaurian dinosaur remains from the Upper Cretaceous of Lano (Iberian Peninsula).
Witmer and Ridgely examined skulls from two predators, Tyrannosaurus rex and Majungasaurus, and two ankylosaurian dinosaurs, Panoplosaurus and Euoplocephalus, both plant eaters with armored bodies and short snouts.
In the southern basins, for example, the localities of Fontllonga-6, Biscarri, Els Nerets and Suterranya-Mina de lignit yielded ankylosaurian remains (Santafe-Llopis et al.