Ankylosaur


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Related to Ankylosaur: Spinosaurus

Ankylosaur

 

armored dinosaur, suborder of the Ornithi-schia order of dinosaurs, characteristic of the Cretaceous period. Ankylosaurs were large (up to eight or nine meters long), herbivorous, four-legged reptiles. The body was broad and thick, protected from above by bony spines or shields that were joined in some ankylosaurs into a solid coat of armor, hence their other name. There were often sharp spikes at the end of the tail, which served as an active means of defense against predatory dinosaurs. Remains of ankylosaurs have been found on all the continents except Australia and Antarctica, but mainly in the Cretaceous layer of North America, Europe, and Asia. In the USSR they have been found in Central Kazakhstan and Kyzylkum.

REFERENCE

Osnovy paleontologii. Vol. 12: Zemnovodnye, presmykaiushchiesia i ptitsy. Moscow, 1964.

A. K. ROZHDESTVENSKII

References in periodicals archive ?
Its powerful tail "could inflict serious damage on opponents, such as predatory theropods or maybe even other ankylosaurs competing for mates or territory," according to (http://www.
The four species span a period of about 10 million years and Arbour's research shows that three of those ankylosaurs species lived at the same time in what is now Dinosaur Provincial Park in southern Alberta.
Mallon said he is hoping to see scutes, or bony plates or scales that were on the skin of ankylosaurs.
Titanosaurian sauropods are the best represented dinosaurs in number of specimens, followed by theropods (mostly teeth), ankylosaurs, and ornithopods.
The Colorado ankylosaur belongs to the family Nodosauridae--passive, plant-eating animals built like fortresses.
2001): Global distribution of purported ankylosaur track occurrences.
2009) distinguished between sauropod and ankylosaur tracks from the Aptian of Italy on the basis of heteropody and footprint rotation.
The teeth of some groups have been studied in depth, such as those of the sauropods (Canudo et al, 2002b), the ankylosaurs (Canudo et al, 2004), the theropods (Ruiz-Omenaca and Canudo, 2003; Ruiz-Omenaca et al.
The story features a counting rhyme, like Ten in the Bed, starring dinosaurs such as pachycephalosaurus, stegosaurus, tyrannosaurus, spinosaurus, archaeopteryx, ankylosaurs, supersaurus, chasmosaurus, saurolophus, and triceratops, who disappear from the fossil record.
Over the last 14 years, over a dozen species have been found in the area, including the duck-billed hadrosaurs, armored ankylosaurs and the dome-headed pachycephalosaurs.
The gnashing teeth of various Iguanodons, Ceratops and Ankylosaurs were blunted.