![]() ![]() This analysis is still under reviewing, but it is to note the position of Dakotaraptor as a dromaeosaur in general is still very solid. More recent analysis, by Hartman et al, defy the original views that Dakotaraptor was a dromaeosaurine, and cladistic analysis go to the notion that it was instead an unusual large unenlagiine, which would make it the first North American member of the Unenlagiinae. It has been considered as being a closer relative to the Campanian Dromaeosaurus (having been classified as its sister taxon, therefore making them most closely related to each other), so Dakotaraptor's large size is only an example of convergent evolution with Utahraptor. This is also consistent with the time that spans between Utahraptor and Dakotaraptor. ![]() ![]() Curiously, Dakotaraptor was more gracile, and had a lighter build more akin to those of these smaller dromaeosaurids than to Utahraptor. The fossils discovered in South Dakota show tiny “quill knobs” on the lower arm bones, suggesting Dakotaraptor had feathers all over the body, including wings on its arms.Ī study of the known fossils of Dakotaraptor show that in body proportions this genus was actually more like genera such as Deinonychus and Dromaeosaurus than to those of Utahraptor, making a direct link between Dakotaraptor and Utahraptor unlikely. Utahraptor has a max estimation of 7 metres (23 ft) in length and 500 kg (1,100 lbs) in weight, while Dakotaraptor was 5.5 metres (19.6 ft) in length and 453 kg (1,000 lbs) in weight but were on a similar scale. A common misconception is that Dakotaraptor has beaten Utahraptor as the largest dromaeosaurid, but this is untrue. ![]()
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