Gunter Van Acker wrote- >
3. some basal sauropodomorphs ("prosauropods") were probably omnivorous. As
shown by a lizard skeleton in the stomach of a Nova Scotia specimen, yes,
Ralph's take home message: Until there is an official description
out, it's just a rumor, and Luis is either a seer, somebody with an inside
scoop, or just a wacky artist making stuff up! (And for the record,
no, I am not in favor of the wacky artist hypothesis, which would contradict
list policy, anyway, so if anyone out there sees it that way, please keep
it off list).
Really? Could you tell me where I can find out more
about this? (I never did trust prosauropods; they remind me of dragons)!
...(I'M SNIPPING POSTS RUTHLESSLY, BY THE WAY)...
> Let's assume that these
integumentary structures were at least keratinous, what could have been
their > function ? Well, as every reptile has
keratinous integumentary structures, that's a pretty safe assumption :-)
Ralph: What? What about question Ruben et
al.'s attribution of _Sinosauropteryx_ filaments to collagen fibers supporting
the tail of a swimmer? Couldn't this be the same thing? (Just
kidding. The _Psittacosaurus_ tail fibers -- if such there be --
are illustrated in _Extreme Dinosaurs_ as being quite long, and I know
that the non-fuzzy aquatic _Sinosauropteryx_ hypothesis has been soundly
falsified. Pardon the cheap shot).
As the information is embargoed...
Ralph: That's right. >
If I recall correctly, another new non-theropod Yixian specimen (?a basal
ornithopod) with> integumentary structures was reported
a while ago on the DML.
Ralph: Drat! Another pesky undocumented critter
trying to sneak in? Have you no papers? Out, out, I say! Jeholosaurus
has no integumentary structures reported- not scales, not filaments, not
feathers. Psittacosaurus has been reported to have tubercular scales
along its arm(http://www.cmnh.org/fun/dinosaur-archive/2001May/msg01018.html).
Ralph: My post, based on photos in _Dinopress_ magazine.
Tubercles on the arm, yes. Of course, this doesn't tell us anything
about the tail. On the other hand, it doesn't look good for this
being a secondarily flightless psittacosaur (in spite of the name, "parrot
I guess we'll all have to buy Luis Rey's _Extreme Dinosaurs_ and hold
these thoughts for now. Enough of this idle speculation. (Then
again, if non-avian dinosaurs hadn't died out, what would they be like
--Ralph W. Miller III email@example.com
I told y'all you would see something in _Extreme Dinosaurs_ you hadn't
seen before! =( 8^O)