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Dinosaurs are a various group of animals of the clade Dinosauria that first appeared through the Triassic interval. Though the precise origin and timing of the evolution of dinosaurs is the topic of lively analysis,[1] the present scientific consensus locations their origin between 231 and 243 million years in the past.[2] They turned the dominant terrestrial vertebrates after the Triassic–Jurassic extinction occasion 201 million years in the past. Their dominance continued by means of the Jurassic and Cretaceous durations and ended when the Cretaceous-Paleogene extinction occasion led to the extinction of most dinosaur teams 66 million years in the past.
Till the late 20th century, all teams of dinosaurs have been believed to be extinct; nevertheless, the fossil document signifies that birds are the fashionable descendants of feathered dinosaurs, having advanced from theropod ancestors in the course of the Jurassic Interval,[3]and at the moment are termed “avian dinosaurs”. As such, birds have been the one dinosaur lineage to outlive the mass extinction occasion.[4] All through the rest of this text, the time period “dinosaur” is usually used generically to discuss with each the avian and non-avian dinosaurs mixed, whereas at different occasions it’s used to seek advice from the non-avian dinosaurs particularly, and the avian dinosaurs are typically merely known as “birds”. This text offers primarily with non-avian dinosaurs.
Dinosaurs are a diversified group of animals from taxonomic, morphological and ecological standpoints. Birds, at over 10000 dwelling species,[5] are probably the most numerous group of vertebrates in addition to perciform fish.[6] Utilizing fossil proof, paleontologists have recognized over 500 distinct genera[7] and greater than 1000 totally different species of non-avian dinosaurs
Dinosaurs is an American household sitcom that was initially broadcast on ABC from April 26, 1991 to July 20, 1994. The present, a few household of anthropomorphic dinosaurs (portrayed by puppets), was produced by Michael Jacobs Productions and Jim Henson Productions in affiliation with Walt Disney Tv and distributed by Buena Vista Worldwide, Inc..[3][4] The characters have been designed by Henson staff member Kirk Thatcher.[5]
Dinosaurs initially featured amusing monitor: it was ultimately dropped because the present grew in reputation. The present utilized voice actors for the characters, that are carried out by totally different actors and puppeteer
A set of fossil dinosaur skeletons. Clockwise from prime left: Microraptor gui (a winged theropod),Apatosaurus louisae (an enormous sauropod),Edmontosaurus regalis (a duck-billed ornithopod),Triceratops horridus (a horned ceratopsian),Stegosaurus stenops (a plated stegosaur),Pinacosaurus grangeri (an armored ankylosaur)

Scientific classification

Kingdom: Animalia

Phylum: Chordata

Class: Reptilia

Clade: Dinosauriformes

Clade: Dinosauria
Owen, 1842

Main teams
• †Ornithischia
• †Ornithopoda
• †Thyreophora
• †Marginocephalia
• Saurischia
• †Sauropodomorpha
• Theropoda