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Parasaurolophus (/ ˌ p ær ə s ɔː ˈ r ɒ l ə f ə s,-ˌ s ɔːr ə ˈ l oʊ f ə s /; meaning "beside crested lizard" in reference to Saurolophus) [2] is a genus of hadrosaurid "duck-billed" dinosaur that lived in what is now western North America and possibly Asia during the Late Cretaceous period, about 76.9–73.5 million years ago. [3]
The size of the two Saurolophus species compared to humans. Saurolophus is known from material including nearly complete skeletons, giving researchers a clear picture of its bony anatomy. S. osborni, the rarer Albertan species, was around 8.2–8.5 m (27–28 ft) long, with its skull 1.0 m (3.3 ft) long.
Lambeosaurines originated on the continent of Laurasia during the Late Cretaceous, being initially found throughout modern Europe and Asia.Around the Campanian stage, lambeosaurines of the tribe Corythosauria colonized the landmass of Laramidia (modern western North America) via Beringia and spread as far south as Mexico, radiating into a diverse array of a body plans, including famous taxa ...
Species Common name Pseudacris cadaverina: California chorus frog Pseudacris hypochondriaca: Southern Pacific chorus frog Pseudacris regilla: Northern Pacific chorus frog Pseudacris sierra: Central Pacific chorus frog
List of fossil species in the La Brea Tar Pits, California, United States; List of fossil species in the London Clay, England; List of White Sea biota species by phylum, Russia; Paleobiota of the Hell Creek Formation, northern United States; Paleobiota of the Morrison Formation, western United States
English: Size comparison of the two better-known species of the North American hadrosaurid dinosaur Parasaurolophus, P. walkeri (type species, blue) and P. cyrtocristatus (fuchsia). The ornithopod silhouettes are based on their respective skeletals by Scott Hartman.
Skull reconstruction. Olorotitan arharensis is based on the most complete lambeosaurine skeleton found outside North America to date. It was a large hadrosaurid, comparable with other large lambeosaurines such as Parasaurolophus cyrtocristatus, [1] and may have grown up to 8 metres (26 ft) in length, up to 3.5 metres (11 ft) in height and within the range of 2.6–3.4 metric tons (2.9–3.7 ...
Corythosaurus (/ k ə ˌ r ɪ θ ə ˈ s ɔːr ə s /; [1] lit. ' helmeted lizard ') is a genus of hadrosaurid "duck-billed" dinosaur from the Late Cretaceous period, about 77–75.7 million years ago, in what is now western North America.