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Há 5 horas · Aerosteon. Aetonyx – junior synonym of Massospondylus. Afromimus. Afrovenator. Agathaumas – possible synonym of Triceratops. Aggiosaurus – subsequently found to be a metriorhynchid crocodilian. Agilisaurus. Agnosphitys – possibly non-dinosaurian. Agrosaurus – probably a junior synonym of Thecodontosaurus.
Há 5 horas · Theropoda Temporal range: Late Triassic – Present, 231.4–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Carnotaurus (a ceratosaur) Coelophysis (a coelophysoid) Tyrannosaurus (a tyrannosauroid) Irritator (a megalosauroid) Struthiomimus (an ornithomimosaur) Archaeopteryx (a maniraptoran) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Clade: Dinosauria Clade: Saurischia ...
Há 1 dia · Titanosaurs (or titanosaurians; members of the group Titanosauria) were a diverse group of sauropod dinosaurs, including genera from all seven continents. The titanosaurs were the last surviving group of long-necked sauropods, with taxa still thriving at the time of the extinction event at the end of the Cretaceous.
Há 1 dia · Map of North America. This list of North American animals extinct in the Holocene features animals known to have become extinct in the last 11,700 years on the North American continent. Animals recently extinct in the West Indies and Hawaii are in their own respective lists. Many extinction dates are unknown due to a lack of relevant information.
Há 5 horas · The Cretaceous–Paleogene ( K–Pg) extinction event, [a] also known as the Cretaceous–Tertiary (K–T) extinction, [b] was a sudden mass extinction of three-quarters of the plant and animal species on Earth, [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.
Há 5 horas · List of Araceae genera. This is a list of genera in the plant family Araceae. As currently circumscribed, the family contains over 3700 species into approximately a hundred genera. The family's taxonomy remains in flux, and a full taxonomic treatment integrating the mass of phylogenetic data that has become available in the last 10 years remain ...
Há 5 horas · An adult narwhal is typically 3.0 to 5.5 m (9.8 to 18.0 ft) in length and 800 to 1,600 kg (1,800 to 3,500 lb) in weight. Carl Linnaeus scientifically described the species in his 1758 work Systema Naturae . The narwhal inhabits Arctic waters, and is vulnerable to predatory attacks from polar bears, orcas and humans.
