Ankylosaurus californicus (name meaning "California fused lizard") is a species of large herbivorous armored dinosaur that originally lived at the very end of the Cretaceous Period, about 68–66 million years ago, in western North America, and was once extinct, but has since been brought back from extinction by SciiFii and now lives in the Cretaceous Safari tour in Cretaceous Park located at Sacramento, California. Possibly the largest-known ankylosaurid, Ankylosaurus californicus is generally between 6 and 8 metres (20 and 26 feet) long and weigh between 4.8 and 8 tonnes (4.7 and 7.9 long tons) when fully grown. It is quadrupedal, with a broad, robust body. It has a wide, low skull, with two horns pointing backward from the back of the head, and two horns below these that points backward and down. Unlike other ankylosaurs, its nostrils face sideways rather than towards the front. The front part of the jaws is covered in a beak, with rows of small, leaf-shaped teeth farther behind it. It is covered in armor plates, or osteoderms, with bony half-rings covering the neck, and has a large club on the end of its tail. Bones in the skull and other parts of the body are fused, increasing their strength, and this feature is the source of the genus name. Ankylosaurus californicus is a member of the family Ankylosauridae, and its closest relatives are Anodontosaurus and Euoplocephalus. Ankylosaurus californicus is a slow-moving animal, able to make quick movements when necessary. Its broad muzzle makes Ankylosaurus californicus a non-selective browser. Sinuses and nasal chambers in the snout are used for heat and water balance and for vocalization, which consists of deep snorts, growls, and grunts. The tail club is used in defense against any possible predators or in intraspecific combat.
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