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Saurian dakotaraptor transparant background11/10/2023 After all, the authors of this paper are… the people who are still insisting that Nanotyrannus is separate from Tyrannosaurus rex. I’m giving it the benefit of the doubt for now, but I really demand some new analyses. I do not know if you can definitevly say they’re different genera at this time, especially since the only dromaeosaurid teeth found in Hell Creek so far have belonged to one genus - Acheroraptor. First off, how do we not know that Acheroraptor isn’t a juvenile Dakotaraptor? Acheroraptor is only known from skull bones, but Dakotaraptorisn’t known from any. First off, they don’t actually include Acheroraptor in their analysis, which leaves me with some questions. However, there are some problems with this. When analyzed for cladistic relationships, it was found to be a sister taxa (meaning, really closely related) of Dromaeosaurus. Not all birds even have quill knobs they are indicative of heavy use of the feathers themselves and Dakotaraptor probably had about 15 of them ( Velociraptor had 14, Archaeopteryx 12, and Microraptor 18). The quill knobs on the arm are completely, without a doubt, quill knobs, similar to those found on Velociraptor, Archeopteryx, and Microraptor, and were points where the secondary remiges (so the VERY LONG very complex pennaceous feathers) could attach. It is similar to that of Utahraptor, but more robust. It is proportionally larger than the claw of Deinonychus it is about 29% of the length of the femur, whereas Deinonychus’ is about 23%. This is impressive, but what is even more startling is the size of it’s characteristic sickle claw: it appeared to have been about 16 cm long, and 24 cm along the dorsal curve. Based on these remains, its size was estimated to be between 5 and 5.5 meters long, meaning only Utahraptor actually exceeded Dakotaraptor in size. What a gorgeous reconstruction!)ĭakotaraptor itself is known from arm and leg bones, as well as some tail vertebrae, and teeth. Source: (Emily Willoughby directly from the paper. We live in a glorious, wondrous, amazing world. Also, that one tumblr user who insists that Utahraptor didn’t have feathers is… somehow even more wrong now. In short, it is now especially inexcusable that the raptors in Jurassic World don’t have feathers. As we all know from Velociraptor, this is direct evidence of heavily used pennaceous feathers, making the phylogenetic certainty of these complex integumentary structures on dromaeosaurs of all sizes even stronger. It’s a very large dromaeosaurid, from Hell Creek - we don’t have many of those, only Utahraptor, Achillobator, and Austroraptor in addition to Dakotaraptor - with quill knobs on its arms. Source: Me! I drew it! Yay! I don’t usually draw things!Ĭlassification: Dinosauria, Saurischia, Eusaurischia, Theropoda, Neotheropoda, Averostra, Tetanurae, Orionides, Avetheropoda, Coelurosauria, Tyrannoraptora, Maniraptoriformes, Maniraptora, Pennaraptora, Paraves, Eumaniraptora, Dromaeosauroidea, Dromaeosauridae, Eudromaeosauriaĭakotaraptor is a new dromaeosaurid from Hell Creek that has been in the rumor mill a long time.
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