9/25/2023 0 Comments Saurian dakotaraptor animation![]() ![]() The second and third claws of the foot have sharp keels at their undersides. The "blood groove" on the outer side of the fourth claw of the foot, towards the tip is fully enclosed over half of its length, forming a bony tubular structure. On the fourth foot claw, the boss that serves as an attachment for the tendon of the flexor muscle is reduced in size. Description Ī Dakotaraptor mount from a Hell Creek Formation exhibition at Yokohoma in 2021.Īutapomorphies are: a reduced flexor muscle that anchors to a boss on the fourth foot claw the fourth foot claw has a blood groove on the outer surface, with half of the tip fully enclosed and forming a bony tube: sharp heels during on the undersides of the second and third claws of the foot the second sickle claw equaling 29% of the thighbones length: the crista fibularis is elongate and light, having a height that does not exceed 9% of the crests length, with the upper edge of the crista fibularis ending in a hook the second metacarpal having an inner condyle almost larger than the outer the outer surface of the second metacarpal bears a shallow groove that anchors the ligament which connects the third metacarpal: the arm has a second metacarpal that bears an edge between the wrist and upper shaft that is straight in the top, with this feature only seen when in the flat view teeth with 15-20 denticles/5 millimeters (0.20 in) on the rear edges and twenty to twenty-Apart from the large size, the description of 2015 indicated some additional distinguishing traits. Phylogenetic tests show that the two fossils of Dakotaraptor and Acheroraptor are not related closely. 4 isolate teeth, PBMNH.P.10.119.T, PBMNH.P.10.121.T, PBMNH.P.10.122.T and PBMNH.P.10.124.T were also referred.ĭakotaraptor may be a different species or "size-morph" of Acheroraptor, due to them being so much larger than adult Acheroraptor specimens. These include right shinbone PBMNH.P.10.115.T articulate left astragalus and calcaneum PBMNH.P.10.118.T and "furcula" KUVP 152429, which was found to belong to a trionychid turtle. ![]() In 2015 DePalma described the specimen, assigning PBMNH.P.10.113.T, a partial dorsal, 10 caudals, humeri, ulnae, radii, the 1st and 2nd right metacarpals, 3 claws of the left hand, the right thighbone, both sinbones, the left astragalus, the left calcaneum, the left 2nd, 3rd and 4th metatarsal, the right 4th metatarsal and the 2nd and 3rd claw of the right foot, as the holotype later, a furcula was assigned, but later excluded due to being from a turtle rather than a dinosaur. Robert DePalma (2005) found a fluvial bonebed, finding a large dromaeosaur skeleton among dinosaurian and other other animal remains. ![]()
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