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

Re: Ichthyornis Predentary?



Jaime wrote...

--------------------------------
Darren Naish wrote of the suggestion that *Ichthyornis* 
probably didn't have a predentary, forwarding the idea that 
this was neomorphic to ornithischians exclusively within 
dinosaurs (it would be neomorphic even if convergent, but
that's not the point); 
--------------------------------

No - it was Dave Marjanovic who was noting suggestions 
that ichthyornithids might not have this structure. Among 
Aves, only hesperornithiforms and teratornithids then have 
predentaries - it therefore seems the neomorph neomorphed 
twice within Theropoda, not three times.

-- 
Darren Naish
School of Earth & Environmental Sciences
University of Portsmouth UK, PO1 3QL

email: darren.naish@port.ac.uk
tel: 023 92846045