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Skeletal mounts of the ankylosaur Scolosaurus. This timeline of ankylosaur research is a chronological listing of events in the history of paleontology focused on the ankylosaurs, quadrupedal herbivorous dinosaurs who were protected by a covering bony plates and spikes and sometimes by a clubbed tail.
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.
The origin of ankylosaurs is poorly understood, and only a few specimens from the Middle Jurassic are known. [14] The ancestry of ankylosaurs has long been sought among stegosaurs, the closest group to ankylosaurs compared to other dinosaurs. Currently, ankylosaurs are a close group of stegosaurs within the Eurypoda clade. [15]
Ankylosauridae (/ ˌ æ ŋ k ɪ l oʊ ˈ s ɔː r ɪ d iː /) is a family of armored dinosaurs within Ankylosauria, and is the sister group to Nodosauridae.The oldest known ankylosaurids date to around 122 million years ago and went extinct 66 million years ago during the Cretaceous–Paleogene extinction event. [1]
The generic name, Huaxiazhoulong, combines the pinyin forms of the Chinese words Huaxia ("China"), zhou ("armour"), and long ("dragon"). The specific name, shouwen, is pinyin for "painted in the shape of a beast". [1] Huaxiazhoulong is the second ankylosaur to be named from Jiangxi Province, following Datai from the Zhoutian Formation earlier ...
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Saichania was a medium-sized ankylosaur, measuring 5–7 metres (16–23 ft) in length and 1.4–2.0 metric tons (1.5–2.2 short tons) in body mass. [ 5 ] [ 6 ] [ 1 ] Finds of tail clubs of gigantic individuals suggest larger sizes but their reference to Saichania cannot be substantiated as the holotype, the only specimen sufficiently ...
The generic name combines Jinyun with a Greek peltè, "small shield", a usual suffix in the names of ankylosaurians. The specific name refers to the provenance from China. [1] The holotype, ZMNH M8960, was found in a layer of the Liangtoutang Formation dating from the Albian-Cenomanian, about one hundred million years old. It consists of a ...