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Re: birds/dino-birds with teeth
David Marjanovic wrote:
> I agree. Another possibility might be that a beak
> provides a smooth cutting edge if it's toothless;
That's kinda "after-the-fact" though.
> Why would a beak impede teeth? Do you mean
> it lay lateral to the teeth, corresponding to lips >
rather than to cornified gums?
So we're talking about full-blown beaks that extend
into the palatal area? I was thinking of something a
little more lateral, yes.
> Well, it appears to be a specialized, derived
> lineage on its own, so that might not tell much
> about birds.
Well, somewhat. It doesn't depart *that* far from the
norm, if you ask me. Other than the elongate finger, I
don't see any other novel (in that they don't appear
in other avepectorans) adaptations.
> Good idea -- but then I'd still think the reverted
> hallux should come first
HP Gregory Paul discussed some middle Jurassic prints
that show fairly big avepods with retroverted halluces
in DA. Interesting stuff.
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