RE: Mesozoic snow?

["Thomas R. Holtz, Jr." <tholtz@geol.umd.edu>]

> From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
> Tim Williams
>
> >The earliest undisputedly feathered dinosaur is Archaeopteryx, if I recall
> >correctly, from the Late Jurassic.
>
> Yep - with the emphasis on 'undisputed'.  We have direct proof of feathers
> in _Archaeopteryx_, but not for any other pre-Cretaceous theropod (or
> anything else, for that matter)

Pedopenna is definitely feathered, and *might* be from the Middle Jurassic. 
(Indeed, most of the Chinese paleos and geologists I
have spoken to are very certain about that date).

                Thomas R. Holtz, Jr.
                Vertebrate Paleontologist
Department of Geology           Director, Earth, Life & Time Program
University of Maryland          College Park Scholars
        Mailing Address:
                Building 237, Room 1117
                College Park, MD  20742

http://www.geol.umd.edu/~tholtz/
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