Re: Mosasauridae synapomorphies

["David Marjanovic" <david.marjanovic@gmx.at>]

> Actually, I really need the synapomorphies, because I wanna know the
> derived characters that all the members of Mosasauridae (more than one
> taxon) share, but that separate them from the other members of
> Mosasauroidea. The autapomorphies are just that of the terminal taxon,
> not even share with the closest relative and the last common ancestor.

This is really just pedantry on my part, but Mosasauridae (one taxon) has 
autapomorphies -- which are the synapomorphies of its members (several taxa). 
It depends on how you look at it.

"Terminal taxon" isn't even defined; not only "terminal taxa" can have 
autapomorphies.