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Re: Stegosaurus with protofeathers? Absolutely!
On Wed, Apr 1, 2009 at 9:29 AM, Dino Guy Ralph <firstname.lastname@example.org> wrote:
> You'll be pleasantly surprised by the on-line advance publication of a most
> important paper today.
> The paper, to be published tomorrow in the journal, _Nature_, describes a
> remarkably well-preserved basal thyreophoran from the early Cretaceous
> (Barremian) lowest Yixian deposits of Liaoning, China. ÂAccording to the
> authors, the specimen's unique suite of features characterizes the animal as
> the most "primitive" ankylosaurid discovered, an apparent nodosaurid most
> closely related to _Liaoningosaurus_ (also from the Yixian Formation).
> Unlike _Liaoningosaurus_, however, the new specimen appears to be a mature
> individual, and possesses not only large osteoderms over 75% of the body,
> including an arrangement of lateral spikes, but also branching filamentous
> integumentary structures interspersed between the osteoderms, which closely
> resemble the feathers of extant paleognathid birds. ÂThese integumentary
> features range in length from 2.5 cm on the neck and head to 60 cm on the
> rump. ÂThis is remarkable given the estimated body length of only 2.3
> meters. ÂThe "fluffy" armored dinosaur is named _Ramalamadingdongosaurus
> Hap-Pi, Ei-pi, and Fu, Z. (2009). "A fluffy ankylosaur from China". Nature
> Volume 458, Number 7237, pp. 297-300.
Not to mention the new feathered stem-crocodylian(!) mentioned in
today's post at Chinleana:
T. Michael Keesey
Technical Consultant and Developer, Internet Technologies