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Chungkingosaurus is a genus of stegosaurian dinosaur. The Chungkingosaurus jiangbeiensis holotype was one of the smallest stegosaurs with a length of less than four metres (about thirteen feet), even though it was apparently an adult, judging by the ossification of the sacrum. Chungkingosaurus sp. 1 was estimated at five metres; Chungkingosaurus sp. 2 was seen as longer than five metres. Chungkingosaurus strongly resembled Tuojiangosaurus, found in the same formation, in many anatomical details. Chungkingosaurus was different in its smaller size, deeper snout and front lower jaws (resulting in a relatively high and narrow skull), and non-overlapping teeth with less pronounced denticles.

Chungkingosaurus probably possessed two rows of plates and spikes on its back, which were arranged in pairs, but the total number is unknown. A skeleton model in the Chongqing Municipal museum shows fourteen pairs of plates. This model also has two pairs of tail spikes. The plates of Chungkingosaurus have a thickened middle section, as if they were modified spikes. The plates resemble those of Tuojiangosaurus. The form of the thagomizer, the tail end spikes used as a defensive weapon, is only known from specimen CV 00208. It preserves two pairs of obliquely vertical, rather stout, spikes. A third pair to the front of these was originally present but lost during the excavation. A unique feature is the presence of an additional pair at the very tail end, consisting of long thin spikes oriented almost horizontally and obliquely to the sides and rear in top view. Paul described this kind of thagomizer as a "pin-cushion array". The thagomizer of Tuojiangosaurus is not known from articulated remains.

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Games

Jurassic World: Evolution

see Chungkingosaurus/JW: E

Chungkingosaurus will appear in Jurassic World: Evolution.

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