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The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence, mainly fossils .
Paraves are a widespread group of theropod dinosaurs that originated in the Middle Jurassic period. In addition to the extinct dromaeosaurids, troodontids, anchiornithids, and possibly the scansoriopterygids, the group also contains the avialans, which include diverse extinct taxa as well as the over 10,000 species of living birds. [2] Basal members of Paraves are well known for the possession ...
Dinosaurs Alive! is a 2007 IMAX documentary produced by Giant Screen Films about various dinosaurs that inhabited the Earth between 251 and 65 Ma. The documentary features animals from the Triassic period of New Mexico to the Cretaceous period of Mongolia, as well as the American Museum of Natural History's research on both periods.
Dinosaurs: The Final Day with David Attenborough (titled Dinosaur Apocalypse in the U.S.) is a British documentary programme that aired on BBC One on 15 April 2022. Presented by David Attenborough, the documentary follows the final days of non-avian dinosaurs through the Cretaceous–Paleogene extinction event, similar to Apple TV+ ’s Prehistoric Planet. Like that series, the programme's ...
A feathered dinosaur is any species of dinosaur possessing feathers. That includes all species of birds, and in recent decades evidence has accumulated that many non-avian dinosaur species also possessed feathers in some shape or form. The extent to which feathers or feather-like structures were present in dinosaurs as a whole is a subject of ...
Sauropoda ( ⫽ sɔːˈrɒpədə ⫽ ), whose members are known as sauropods ( ⫽ ˈsɔːrəpɒdz ⫽; [1] [2] from sauro- + -pod, ' lizard -footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs. They are notable for the enormous sizes attained by some ...
This new view of dinosaurs was championed particularly by John Ostrom, who argued that birds evolved from coelurosaurian dinosaurs, [2] and Robert Bakker, who argued that dinosaurs were warm-blooded in a way similar to modern mammals and birds. [3] Bakker frequently portrayed his ideas as a "renaissance" akin to those in the late nineteenth century, referring to the period in between the ...
The evolution of birds is thought to have begun in the Jurassic Period, with the earliest birds derived from theropod dinosaurs. Birds are categorized as a biological class, Aves. The earliest known species in Aves is Archaeopteryx lithographica, from the Late Jurassic period. Modern phylogenetics place birds in the dinosaur clade Theropoda.