[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: A therizinosauroid dinosaur with integumentary structures from China
In a message dated 5/26/99 9:37:23 PM EST, firstname.lastname@example.org writes:
<< Our analysis suggests that several
specialized therizinosauroid characters, such as the Sauropodomorpha-like
tetradactyl pes, evolved independently within this group. Most
this new dinosaur has integumentary filaments as in _Sinosauropteryx_. This
indicates that such feather-like structures may have a broad distribution
non-avian theropods >>
Interesting indeed. But my analysis is rather different, of course.
Integumentary filaments, sometimes accompanied by osteoderms, are >primitive
for dinosaurs< (not just some advanced subgroup of theropods), and their
"broad distribution" in Dinosauria (not just Theropoda) accounts for their
appearance in those phytodinosaurian segnosaurs. One of these days there will
be some interesting news about a certain group of small ornithischian
dinosaurs, but I really am permitted to say no more at this time.