> Sometimes it reads just like Jura wants these to be anything else
more than quill knobs. ;-)
To be fair, it's likely they really aren't quill knobs, because they're on the wrong side of the ulna: http://theropoddatabase.blogspot.com/2010/09/concavenator-feathers-becklespinax-and.html (hey, Mickey, why don't you do some more blogwhoring!?!)
http://scienceblogs.com/tetrapodzoology/2010/09/concavenator_incredible_allosauroid.php