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Triceratops (/ t r aɪ ˈ s ɛr ə t ɒ p s / try-SERR-ə-tops; [1] lit. ' three-horned face ') is a genus of chasmosaurine ceratopsian dinosaur that lived during the late Maastrichtian age of the Late Cretaceous period, about 68 to 66 million years ago in what is now western North America.
North American herbivorous dinosaurs from this time period include the titanosaur sauropod Alamosaurus, the ceratopsians Bravoceratops, Regaliceratops, Triceratops, Leptoceratops, Torosaurus, Nedoceratops, Tatankaceratops (the latter two possible species of Triceratops), and Ojoceratops, the pachycephalosaurs Pachycephalosaurus, Stygimoloch ...
Ceratopsidae (sometimes spelled Ceratopidae) is a family of ceratopsian dinosaurs including Triceratops, Centrosaurus, and Styracosaurus. All known species were quadrupedal herbivores from the Upper Cretaceous. All but one species are known from western North America, which formed the island continent of Laramidia during most of the Late ...
Ceratopsia or Ceratopia (/ ˌ s ɛr ə ˈ t ɒ p s i ə / or / ˌ s ɛr ə ˈ t oʊ p i ə /; Greek: "horned faces") is a group of herbivorous, beaked dinosaurs that thrived in what are now North America, Asia and Europe, during the Cretaceous Period, although ancestral forms lived earlier, in the Late Jurassic of Asia.
This is a list of U.S. state dinosaurs in the United States, including the District of Columbia.Many states also have dinosaurs as state fossils, or designate named avian dinosaurs (List of U.S. state birds), but this list only includes those that have been officially designated as "state dinosaurs".
It was the largest city in North America in the 12th century. [19] 1150–1350: Ancestral Pueblo people are in their Pueblo III Period; 1200: Construction begins on the Grand Village of the Natchez near Natchez, Mississippi. This ceremonial center for the Natchez people is occupied and built upon until the early 17th century. [20]
A controversial ceratopsian possibly synonymous with Triceratops [57] Torosaurus [8] [38] T. latus [8] [38] Montana [38] North Dakota [9] [40] South Dakota [9] [39] Upper Hell Creek Formation [10] A ceratopsian that was once proposed to be synonymous with Triceratops, [58] but is now regarded as a valid and distinct ceratopsian. [59] A rare ...
When Dinosaurs Roamed America was first revealed on the Discovery website in June 2001, originally with a July 13 airdate set. [6] It was also announced that clips from the program would be added to the website for the upcoming show. [6] Nine different clips were available, which showed bits of the five segments of When Dinosaurs Roamed America ...