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Ankylosaurus [nb 1] is a genus of armored dinosaur. Its fossils have been found in geological formations dating to the very end of the Cretaceous Period, about 68–66 million years ago, in western North America, making it among the last of the non-avian dinosaurs. It was named by Barnum Brown in 1908; it is monotypic, containing only A ...
The two main families of ankylosaurians, Nodosauridae and Ankylosauridae are primarily known from the Northern Hemisphere (North America, Europe and Asia), but the more basal Parankylosauria are known from southern Gondwana (South America, Australia and Antarctica) during the Cretaceous. Ankylosauria was first named by Henry Fairfield Osborn in ...
Ankylosauridae is exclusively known from the Northern Hemisphere, with specimens found in North America, Europe, and Asia. The first discoveries within this family were of the genus Ankylosaurus, by Peter Kaiser and Barnum Brown in Montana in 1906. [4] Brown went on to name Ankylosauridae and the subfamily Ankylosaurinae in 1908.
Zuul is a genus of herbivorous ankylosaurine dinosaur from the Campanian Judith River Formation of Montana.The type species is Zuul crurivastator.It is known from a complete skull and tail, which represents the first ankylosaurin known from a complete skull and tail club, as well as the most complete ankylosaurid specimen thus far recovered from North America.
Among the ankylosaurids, Euoplocephalus was exceeded in size only by Ankylosaurus, and perhaps Tarchia and Cedarpelta. Euoplocephalus was about 5.3 metres (17 ft) long and weighed about 2 metric tons (2.2 short tons). [1] Like other ankylosaurids, it had a very broad and flat low-slung torso, about four feet high, positioned on four short legs.
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Borealopelta (meaning "Northern shield") is a genus of nodosaurid ankylosaur from the Lower Cretaceous of what is today Alberta, Canada.It contains a single species, B. markmitchelli, named in 2017 by Caleb Brown and colleagues from a well-preserved specimen known as the Suncor nodosaur.
Nodosauridae is a family of ankylosaurian dinosaurs known from the Late Jurassic to the Late Cretaceous periods in what is now Asia, Europe, North America, and possibly South America. While traditionally regarded as a monophyletic clade as the sister taxon to the Ankylosauridae , some analyses recover it as a paraphyletic grade leading to the ...