[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Some questions... (second try)



It was brought to my notice by HP Aspidel that this message wasn't in PLAIN
TEXT, so most of you probably did not receive it...  Grrrrr..... >:( So,
here's the second try.

Hi all,

Having just returned from my holiday from Greece I had some time to read a
couple of papers and books that I didn't have the time for before it (but
most of the time it were the beaches that were in my mind... :)).
But with these books and papers a couple of questions appeared in my mind
and they are the following:

1) Why is everybody reconstructing the pelvis of Unenlagia wrong? Somewhere
on the WWW there is an image of (a grumpy looking) Fernando Novas holding
the pelvic elements actually found of Unenlagia and they seem to differ from
all reconstructons I have seen of this element: it is more
Archaeopteryx-like and slightly opisthopubic, instead of the mespubic
condition seen in all the reconstructions, even in the excellent DA. They
all seem to have been based on the reconstruction of the element in the
original mount or reconstruction in the paper, while completely ignoring the
actual evidence. If nobody knows what I am talking about, the image of the
actual remains is available to anyone who wants it.

2) On the same page in DA as the Unenlagia pelvis (page 199), there is a
provisional "Protoavis" pelvic reconstruction which has a opisthopubic
condition, the same "flaring" structure on the left-side as in
Therizinosaurids, but what is that structure attached to the right side of
the ilium? If we follow the condition seen in the pelvis of Enantiornis, it
seems to be a part of the ischium, does this make any sense? Or is the ilium
(+?ischium) drawn in ventral view?

3) Again in DA, in the Mesozoic-section of the book (pages 275-292), on page
282, the second column at approximately three-quarters of the page, there is
a mentioning of the earliest Cretaceous of eastern Europe of an
Archaeopterygiform and a ratite based on isolated bones. What is exactly
known for these two specimens and where were they found?

4) Could anyone help me with figures of the following publication?
- Naturwissenschaften online--advance publications Short Communication
Europe's last Mesozoic bird
Dyke, Gareth J. , Rudi W. Dortangs, John W. M. Jagt, Eric W. A. Mulder, Anne
S. Schulp (our Dutch pride of paleontology :))and Luis M. Chiappe

5) Could anyone send me a figure of the pelvis of Jeholornis? This part is
obscured in the material or not visible, which is making my skeletal
reconstruction not that much easier than that it already is.

6) In the Fukuiraptor-description there is a mentioning of bones collected
of an Iguanodontian from the Kitadani Formation, has this genus been named
already and where is it described?

So, this was it for the moment, maybe more will come up, but am a bit
tired...

Thanks in advance!

Rutger Jansma

ps. bye the way, if my Microraptor will be finished, would there be any
interest in it? It will probably take a few days before it is actually
finished and the new material is not filled in yet (<:( ), but if...