References / paperFeather Quill Knobs in the Dinosaur Velociraptor
Turner, A.H.; Makovicky, P.J.; Norell, M.A.
Year2007
Source roleprimary-study
DOI / ID10.1126/science.1145076
Fitness and scope
taxonomy · morphology · ecology · range
Direct description of regularly spaced ulnar papillae in specimen IGM 100/981; feather attachment is comparative inference and does not establish flight.
Claim ledger
morphology · highVelociraptor specimen IGM 100/981 preserves regularly spaced ulnar papillae interpreted as quill knobs; this supports attached secondary feathers on that forearm, not powered flight, exact plumage extent or every species in the genus.
claim:taxon:velociraptorfossil-range · mediumVelociraptor is displayed at 75–71 Ma only as the Campanian specimen interval for IGM 100/981, not the full range of Velociraptor. The interval is a source-bounded sample window, not a global FAD, LAD, divergence date, continuous occupancy claim or direct-ancestor assertion.
claim:taxon:velociraptor:source-bounded-range-rc49