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Pterosaur stuff (was Lü and Li 2006, a review)
Meanwhile, back on planet earth....
Lü and Li is, in fact, Lü and Ji, 2006. They adopted Kellner's 2003 data set
(apparently a modified version of Kellner, 1996, that resurfaced in Kellner,
2004 and Wang et al., 2005) adulterated/improved it (depending on your personal
prejudice) with several characters from Unwin, 2003, added a few more taxa, all
from the Jehol Biota, and omitted several others. I doubt that leaving out P.
zambelli, E. rosenfeldti, 'Ornoithocheirus' (never seen it spelt like that
before) 'compressiorstris' (or that) and N. bonneri had a serious impact on the
outcome, but hey, don't take my word for it, go check it yourself.
Topographically the trees generated by Lü and Ji, 2006, are similar to those
produced by Kellner, but as their character set is dominated by Kellner's data
this should not even elicit the merest hint of surprise. Interestingly,
dsungaripterids pop up in the middle of azhdarchoids, obviously the former
decided that they couldn't manage without teeth, while several toothless forms
(Eopteranodon, Chaoyangopterus), previously allied with ornithocheiroids,
actually pair with azhdarchoids (again, I doubt anyone who has looked at these
taxa will be much surprised). On the other hand, 'Nycosaurus' (who?) and
Pteranodon crop out closer to azhdarchoids than to ornithocheiroids - which is
a tad unexpected. Overall its a useful paper because it begins to sort out the
relationships of some of the numerous new Jehol taxa, but clearly there is
still a lot to do and not all of it involves a spell-checker.
If you want to hear more about this then both Brian Andres and I will be giving
talks on pterosaurs, including the (many) new Jehol taxa, at the upcoming IPC
meeting in Beijing (I think we are both talking on the morning of June 20th in
session T13 [www.ipc2006.ac.cn/Programs.htm], but I haven't seen the final
running order yet).
In the meantime, I have a small request. I am looking for any short film
sequences (say 20 -30 seconds long) showing a pterosaur, or pterosaurs, in
flight (doesn't matter if they are part of a much longer film). I have
programme 4 of WWD (with the histrionic backing score), but feel sure that
there are other potential sources out there. Any pointers would be most
helpful.
Cheers,
Dave
PS My congratulations to the soon to be Dr Naish and his excellent blog, even
if it is inaccessible from the Middle Kingdom.
PPS Rumours last year of an extra super giant pterosaur are, apparently,
unfounded (doh).
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David M. Unwin PhD
Curator for Fossil Reptiles and Birds
Institut fur Palaontologie, MUSEUM FUR NATURKUNDE
Zentralinstitut der Humboldt-Universitat zu Berlin
Invalidenstrasse 43, D-10115 Berlin, GERMANY
Email: david.unwin@rz.hu-berlin.de
Office: 0049 30 2093 8577
Secretary: 0049 30 2093 8862
Fax 0049 30 2093 8868
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Would you like to catch up on the latest ideas about pterosaurs?
Then read: THE PTEROSAURS
http://us.penguingroup.com/nf/Book/BookDisplay/0,,9780131463080,00.html
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