and figured, and referred to V. mongoliensis mainly based on cranial similarities with the holotype skull, although they stated that differences were present between the pelvic region of this specimen and other Velociraptor specimens. This relatively well-preserved specimen including the skull was discovered and collected in 1995 at the Bayn Dzak locality (more especifically at the "Volcano" sub-locality). Martin Kundrát in a 2004 abstract compared the neurocranium of MPC-D 100/982 to another Velociraptor specimen, MPC-D 100/976. He concluded that the overall morphology of the former was more derived (advanced) than the latter, suggesting that they could represent distinct taxa. Mark J. Powers in his 2020 master thesis fully described MPC-D 100/982, which he concluded to represent a new and third species of Velociraptor. This species, which he named "V. vadarostrum", was stated to mainly differ from other Velociraptor species in having a shallow maxilla morphology. Powers and colleagues also in 2020 used morphometric analyses to compare several dromaeosaurid maxillae, and found the maxilla of MPC-D 100/982 to strongly differ from specimens referred to Velociraptor. They indicated that this specimen, based on these results, represents a different species. In 2021 Powers with team used Principal Component Analysis to separate dromaeosaurid maxillae, most notably finding that MPC-D 100/982 falls outside the instraspecific variability of V. mongoliensis, arguing for a distinct species. They considered that both V. mongoliensis and this new species were ecologically separated based on their skull anatomy. The team in another 2021 abstract reinforced again the species-level separation, noting that additional differences can be found in the hindlimbs. Description Velociraptor was a small to medium-sized dromaeosaurid, with adults measuring between long, approximately high at the hips, and weighing about . Prominent quill knobs—attachment site of "wing" feathers and direct indicator of a feather covering—have been reported from the ulna of a single Velociraptor specimen (IGM 100/981), which represents an animal of estimated long and in weight. The spacing of 6 preserved knobs suggests that 8 additional knobs may have been present, giving a total of 14 quill knobs that developed large secondaries ("wing" feathers stemming from the forearm). However, the specimen number has been corrected to IGM 100/3503 and its referral to Velociraptor may require reevaluation, pending further study. Nevertheless, there is strong phylogenetic evidence from other dromaeosaurid relatives that indicates the presence of feathers in Velociraptor, including dromaeosaurids such as Daurlong, Microraptor, or Zhenyuanlong. Skull The skull of Velociraptor