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Tarbosaurus. Raptorex kriegsteini. Tarbosaurus (/ ˌtɑːrbəˈsɔːrəs / TAR-bə-SOR-əs; meaning "alarming lizard") is a genus of large tyrannosaurid dinosaur that lived in Asia during the Late Cretaceous epoch, about 70 million years ago (Maastrichtian age). It contains the single type species: Tarbosaurus bataar, which is known from the ...
Protoceratops were small ceratopsians, up to 2–2.5 m (6.6–8.2 ft) long and around 62–104 kg (137–229 lb) in body mass. While adults were largely quadrupedal, juveniles had the capacity to walk around bipedally if necessary. They were characterized by a proportionally large skull, short and stiff neck, and neck frill.
Ceratopsia or Ceratopia (/ ˌsɛrəˈtɒpsiə / or / ˌsɛrəˈtoʊpiə /; Greek: "horned faces") is a group of herbivorous, beaked dinosaurs that thrived in what are now North America, Europe, and Asia, during the Cretaceous Period, although ancestral forms lived earlier, in the Jurassic.
Fighting Dinosaurs. The Fighting Dinosaurs is a fossil specimen which was found in the Late Cretaceous Djadokhta Formation of Mongolia in 1971. It preserves a Protoceratops andrewsi and Velociraptor mongoliensis trapped in combat about 80 million years ago and provides direct evidence of predatory behavior in non- avian dinosaurs.
Mounted skeletons of Tyrannosaurus (left) and Apatosaurus (right) at the AMNH. Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
Dryptosaurus was the only large carnivore known in eastern North America until the discovery of the basal tyrannosauroid Appalachiosaurus in 2005. [19] Appalachiosaurus, which is known from more complete remains, is similar to Dryptosaurus in both body size and morphology. [20] This discovery made it clear that Dryptosaurus was also a basal ...
Cover of Time Magazine, October 29, 1923. Roy Chapman Andrews (January 26, 1884 – March 11, 1960) was an American explorer, adventurer, and naturalist who became the director of the American Museum of Natural History. [1] He led a series of expeditions through the politically disturbed China of the early 20th century into the Gobi Desert and ...
This timeline of ceratopsian research is a chronological listing of events in the history of paleontology focused on the ceratopsians, a group of herbivorous marginocephalian dinosaurs that evolved parrot-like beaks, bony frills, and, later, spectacular horns. The first scientifically documented ceratopsian fossils were described by Edward ...