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The term raptor is derived from the Latin word rapio, meaning "to seize or take by force". [8] The common names for various birds of prey are based on structure, but many of the traditional names do not reflect the evolutionary relationships between the groups. [citation needed] Variations in shape and size
The genus name derives from the Greek mega (large) and the Latin raptor (thief), while the species name derives from the Mapuche namun (foot) and huaiqui (lance). [1] In 2004, a second Megaraptor specimen (MUCPv 341), was described in a paper helmed by Jorge O. Calvo.
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Family of theropod dinosaurs Dromaeosaurids Temporal range: Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N A collection of dromaeosaurid fossil skeletons. Clockwise from upper left: Deinonychus antirrhopus (a heavily built eudromaeosaur), Buitreraptor gonzalezorum (a long-snouted unenlagiine ...
Size comparison of megaraptorids. Megaraptorans were medium to large-sized theropods, ranging from Fukuiraptor, which was about 4.2 meters (13.8 feet) in length, to the 9 meter (30 feet) long Aerosteon, the 9 to 10 meter (30 to 33 feet) long Maip [5] and the 12.8 meter (42 foot) long Bahariasaurus, if it is a member. [9]
The largest dimensions found in this species are an approximate head-to-tail length of 1.44 m (4.7 ft) and a wingspan of 3.65 m (12.0 ft). The largest bird of all time was likely the elephant bird Aepyornis maximus , which was estimated to have weighed 275–1,000 kilograms (610–2,200 lb) and stood at 3 metres (9.8 ft) tall.
The latest study highlights the role played by Australia’s dinosaurs in the ecosystems of the ancient world, a large part of which was clustered into the giant supercontinent Gondwanaland. These ...
Utahraptor was one of, if not the largest and heaviest of all dromaeosaurids, with the largest assigned specimen BYUVP 15465 having a femoral length of 56.5–60 cm (22.2–23.6 in). [8] [9] Utahraptor is estimated to have reached 6–7 metres (20–23 ft) in length and somewhat less than 500 kg (1,100 lb), comparable in weight to a polar bear.
List of largest cities by area Notes ^ For urban/metropolitan areas that have more than one core city , the figure for their city proper should use either the most populous one (e.g. Dallas for Dallas–Fort Worth metroplex ) or the best-known one (e.g. Manila for Metro Manila , instead of Quezon City ).