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RE: [belated questions about beaks]


-----Original Message-----
No, all the extant chelonians are toothless, although some, like the
herbivorous) testudines do have serrated beaks that superficially look

The last chelonians with teeth were the _Proganochelyids_ of the
Triassic, so
turtles have been going toothless for quite some time now.

Archosaur J
I would add that although Proganochelys had palatal teeth the main tooth
rows (premaxilla and maxilla in the upper jaw, dentary in the lower jaw)
were already gone, and a beak was probably present. The 'teeth' of
Proganochelys were small denticles that formed a pavement over some of the
bones of the palate.


Adam Yates

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