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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.
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 Pre๊ ๊ 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 ...
Unenlagia (meaning "half-bird" in Latinized Mapudungun) is a genus of dromaeosaurid theropod dinosaur that lived in South America during the Late Cretaceous period. [1] The genus Unenlagia has been assigned two species: U. comahuensis, the type species described by Novas and Puerta in 1997, [1] and U. paynemili, described by Calvo et al. in 2004.
Whole blood with microfilaria worm, giemsa stain. L. loa worms have a simple structure consisting of a head (which lacks lips), a body, and a blunt tail. The outer body of the worm is composed of a cuticle with three main layers made up of collagen and other compounds which aid in protecting the nematodes while they are inside the digestive system of their host.
Utahraptor: 1993 Cedar Mountain Formation (Early Cretaceous, Berriasian to Valanginian) United States ( Utah) Very large and powerfully built Uteodon: 2011 Morrison Formation (Late Jurassic, Tithonian) United States ( Utah) May be a species of Camptosaurus, with a referred braincase being from Dryosaurus [88] Vagaceratops: 2010
The park is located east of U.S. Route 191 and west of Arches National Park, and covers 6,500 acres (26 km 2).The park contains the Dalton Wells Quarry, which have yielded remains of dinosaurs that have advanced understanding of paleontology, such as those of the giant dromaeosaur dinosaur Utahraptor ostrommaysi. [2]
The Utahraptor, however, was a more accurate dinosaur in size comparison to the franchise's Velociraptors; it was discovered shortly before the 1993 release of Jurassic Park ' s film adaptation. [12] [13] Special-effects artist Stan Winston, who worked on the raptors, joked: "After we created it, they discovered it". [12]
[1] [2] The type specimen was found alongside 4 partial skeletons of Gastonia that were placed as paratypes, along with the type specimen of Utahraptor and an iguanodontid. [1] [2] Gastonia is among the most common dinosaur fossils in the Cedar Mountain Formation, with many individuals being found across several quarries in the southwest.