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Micropachycephalosaurus (meaning "small thick-headed lizard") is an extinct genus of basal marginocephalian dinosaur containing only the type species, Micropachycephalosaurus hongtuyanensis. It lived in China during the Late Cretaceous ( Campanian ) and was found in the Jiangjunding Formation .
The small size of most pachycephalosaur species and lack of skeletal adaptation indicates that they were not climbers and primarily ate food close to the ground. Mallon et al. (2013) examined herbivore coexistence on the island continent of Laramidia , during the Late Cretaceous and concluded that pachycephalosaurids were generally restricted ...
The type species was found in Canada. The Asian species is distinguished by its larger size and backwards-pointing diagonal crest Sauroplites: 1953 Zhidan Group (Early Cretaceous, Barremian to Aptian) China: Preserved lying on its back with parts of its armor in an articulated position Saurornithoides: 1924 Djadochta Formation (Late Cretaceous ...
Restoration Size compared to a human. Pachycephalosaurus was bipedal and possibly the largest of all pachycephalosaurids. [27] It has been estimated that Pachycephalosaurus was about 4.5 metres (14.8 ft) long and weighed about 370–450 kilograms (820–990 lb).
Dong Zhiming described the new genus and species Micropachycephalosaurus hongtuyanensis. [7] He also proposed that the flat-headed pachycephalosaurs constituted a distinct family called the Homalocephalidae. [10] Skull of Gravitholus viewed from above. The arrows point out lesions in the bone.
† Micropachycephalosaurus hongtuyanensis Dong, 1978 - suborder Ceratopsia. A fossil herbivorous dinosaur from the Cretaceous of Shandong, China. It has the longest name of any dinosaur, or any reptile. Neometanematobothrioides periorbitalis Yamaguti, 1970 - family Didymozoidae. A parasitic fluke that affects the greater amberjack, and can ...
Reconstruction of a Tyrannotitan feeding on a Chubutisaurus Estimated size compared to a human. Tyrannotitan was a large animal, reaching 12.2–13 metres (40–43 ft) in length and 4.8–7 t (5.3–7.7 short tons) in body mass.
Its size has been estimated at 5.8 metres and 3,500 kg, it was a rather large centrosaurine. Anchiceratops. Anchiceratops ornatus; 72–71 mya Horseshoe Canyon Formation, Alberta Anchiceratops ornatus was a medium-sized chasmosaurine with a distinctive frill. Fragmentary horn and frill remains from older Campanian formations in Alberta may ...