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Stegosaurus longispinus was named by Charles W. Gilmore in 1914 based on a fragmentary postcranial skeleton that has largely been lost. [61] [8] It is now the type species of the genus Alcovasaurus, though it has been referred to Miragaia. [62] [61] Stegosaurus madagascariensis from Madagascar is known solely from teeth and was described by ...
Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere, predominantly in what is now North America, Europe, Africa, South America and Asia. Their geographical origins are unclear; the earliest unequivocal ...
Description. Apex is the largest and most complete known Stegosaurus skeleton, with 254 bones preserved out of approximately 319. It measures 3.4 metres (11 ft) in height and 8.2 metres (27 ft) in length. [1] The specimen is 150 million years old, dating to the Late Jurassic epoch. [2] The exact species it belongs to is not known.
The largest skeletal remains uncovered yet of a Stegosaurus was sold for $44.6m on Wednesday at Sotheby’s in New York, setting record as the most valuable dinosaur fossil ever auctioned.. The ...
The hole perfectly matches a thagomizer spike. [1] A thagomizer (/ ˈθæɡəmaɪzər /) is the distinctive arrangement of four spikes on the tails of stegosaurian dinosaurs. These spikes are believed to have been a defensive measure against predators. [2][1] The arrangement of spikes originally had no distinct name.
Plate-backed stegosaurids included Hesperosaurus mjosi, Stegosaurus armatus, S. ungulatus, S. stenops, and Alcovasaurus longispinus. Armored dinosaurs that weren't stegosaurs were unknown in the formation until the 1990s. Two have been named: Gargoyleosaurus parkpinorum and Mymoorapelta maysi.
Stegoceras is a genus of pachycephalosaurid (dome-headed) dinosaur that lived in what is now North America during the Late Cretaceous period, about 77.5 to 74 million years ago (mya). The first specimens from Alberta, Canada, were described in 1902, and the type species Stegoceras validum was based on these remains.
Skeletal mount of Stegosaurus. This timeline of stegosaur research is a chronological listing of events in the history of paleontology focused on the stegosaurs, the iconic plate-backed, spike-tailed herbivorous eurypod dinosaurs that predominated during the Jurassic period. The first scientifically documented stegosaur remains were recovered ...