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Re: Oviraptorosaurs as prehistoric "peacocks"
On Sat, November 5, 2011 1:20 am, Tim Williams wrote:
> Ben Creisler <email@example.com> wrote:
>>From the abstract:
> "These new finds show that pygostyles and, by
> associational inference, tail-tip feather-fans were widespread amongst
> advanced and primitive oviraptorosaurs."
> It's worth noting that confuciusornithids and enantiornitheans have a
> pygostyle, but the tail feathers do not form a fan. AFAIK, within the
> bird clade, rectricial fans are limited to the
> Ornithuromorpha/Euornithes lineage.
And is associated in the living forms (at least) with the development of
the retricial bulb, which may have been absent outside euornithines.
Thomas R. Holtz, Jr.
Email: firstname.lastname@example.org Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Science & Global Change Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA