Re: Questions on tapejarids

[Nick Gardner <paleo_otaku95@eudoramail.com>]

--- Mark van Tomme wrote:
>
>I've got some questions on tapejarids:
>
>*Is the rostrum in Sinopterus gui and S.dongi almost
>straight?
>

It doesn't seem to be. The figures in both descriptions show a snout where the 
maxilla is slightly concave, then the premaxilla just slopes forward and 
slightly down straight. The premaxilla appears to have a straight ventral 
margin, though.

>
>*Is Jidapterus edentus Dong et al. a basal tapejarid?
>

I can't tell from the original description for I sadly cannot read Chinese.

>*What is the ontogenic stage of the Sinopterus
>gui,S.dongi and Jidapterus edentus?
>

Wang and Zhou don't indicate how mature the Sinopterus dongi holotype is, and 
the description of the other two species is in Chinese, which I cannot read, so 
I cannot say. Perhaps there are individuals on this list whose are capable of 
reading Chinese and might be able to tell from the papers (hint hint).

Nick Gardner


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