Albertonykus
At long last, ornithomimosaur feathers! Furthermore, these feathers were not found on a newly-discovered species from the fine-grained Jehol Beds in China (as many feathered fossils have been), but on the long-known Ornithomimus, in coarser-grained sediments of North America, opening up the possibility of finding more such fossils if fossil hunters keep a sharp eye out.
The new paper describes two new Ornithomimus specimens that preserve feathers, a juvenile and an adult, as well as a long-known adult specimen that appears to have remaining traces of feathers where they attached to its arms. This suggests that adult Ornithomimus had big wing feathers while juveniles did not (as the juvenile doesn’t preserve such feathers), hinting at a display function for the wing feathers, and pushes the origin of wings back down to the base of Maniraptoriformes (previously wings were only definitively known in oviraptorosaurs and paravians, which are true maniraptors). 2012 has been a blast for amazingly awesome dinosaur news so far!
The above photo shows the new juvenile Ornithomimus specimen.

At long last, ornithomimosaur feathers! Furthermore, these feathers were not found on a newly-discovered species from the fine-grained Jehol Beds in China (as many feathered fossils have been), but on the long-known Ornithomimus, in coarser-grained sediments of North America, opening up the possibility of finding more such fossils if fossil hunters keep a sharp eye out.

The new paper describes two new Ornithomimus specimens that preserve feathers, a juvenile and an adult, as well as a long-known adult specimen that appears to have remaining traces of feathers where they attached to its arms. This suggests that adult Ornithomimus had big wing feathers while juveniles did not (as the juvenile doesn’t preserve such feathers), hinting at a display function for the wing feathers, and pushes the origin of wings back down to the base of Maniraptoriformes (previously wings were only definitively known in oviraptorosaurs and paravians, which are true maniraptors). 2012 has been a blast for amazingly awesome dinosaur news so far!

The above photo shows the new juvenile Ornithomimus specimen.

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    !!!!!!!!!!!!!!!!!!!!!!!!! this is EXCITING
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  25. warm-bloodeddino said: FINNALY, And with actual “wings” also. Freking amazing