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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.
Triceratops fossils are far and away the most common dinosaur remains found in the latest Cretaceous rocks in the western United States, making up as much as 5/6ths of the large dinosaur fauna in some areas. [33] These facts indicate that some ceratopsians were the dominant herbivores in their environments.
It is the largest known Triceratops skeleton, according to the team that assembled the fossil. Big John's 2021 auction price of € 6.6 million ( US$ 7.7 million) made it the most expensive Triceratops skeleton; its high price signaled increasing demand for dinosaur fossils among private collectors and prompted discussion about the drawbacks of ...
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.
One exceptionally large specimen later became its own genus, Titanoceratops, due to its more derived morphology, similarities to Triceratops, and lack of unique characteristics shared with Pentaceratops. [2] [3] Pentaceratops was about 5.5–6 meters (18–20 ft) long, and has been estimated to have weighed around 2.5 metric tons (2.8 short tons).
Size comparison. Sinoceratops was a large ceratopsian, with an estimated length of 5 metres (16 ft) and body mass of 2 tonnes (2.0 long tons; 2.2 short tons). [5] It has a short, hooked horn on its nose (called a nasal horn), no horns above its eyes (brow horns), and a short neck frill with a series of forward-curving hornlets that gave the frill a crown-like appearance.
The middle–late Campanian formations show a greater diversity of dinosaurs than any other single group of rocks. The late Maastrichtian rocks contain the largest members of several major clades: Tyrannosaurus, Ankylosaurus, Pachycephalosaurus, Triceratops, and Torosaurus, which suggests food was plentiful immediately prior to the extinction ...
The primary source for this list is a book called Dinosaur Facts and Figures: The Sauropods and Other Sauropodomorphs by Rubén Molina-Pérez and Asier Larramendi which contains every sauropodomorph species described up to the date of its completion (January 1, 2019), including dubious or very fragmentary specimens. [11]