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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.
However, it is a considerably larger animal, around the size of a wild turkey, being among the largest known flying Mesozoic paravians. Another dromaeosaurid species, Deinonychus antirrhopus, may display partial flight capacities. The young of this species bore longer arms and more robust pectoral girdles than adults, and which were similar to ...
Production on Jurassic Park began before the discovery of the large dromaeosaurid Utahraptor was made public in 1991, but as Jody Duncan wrote about this discovery: "Later, after we had designed and built the raptor, there was a discovery of a raptor skeleton in Utah, which they labeled 'super-slasher.' They had uncovered the largest ...
Their saving grace, though, was how short they were; the common raptor came up to an average person's knees. That is, until scientists discovered a "megaraptor" that is the super-sized version of ...
The 5-ton apex-predator measuring 3 stories from nose to tail was found eviscerated its prey with sharp, curved claws.
Measuring around 4.5–5 m (15–16 ft) long and weighing between 250–350 kg (550–770 lb), Achillobator is considered to be one of the largest dromaeosaurs, along with Austroraptor, Dakotaraptor and Utahraptor. Achillobator was a deep-bodied and relatively short-armed dromaeosaurid with stocky and robust legs. Some of the most notable ...
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.
The new species, described in the journal Diversity, diverged from the previously known southern green anaconda about 10 million years ago, differing genetically from it by 5.5 per cent.