[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: New paper on fish fingers
I'm still not clear on the matter of osteoderms. Irrespective of the
origin of the costal plates (whether extensions of the ribs, or neomorphic
ossifications), this is a separate issue from the role of osteoderms in
the origin of the turtle carapace... isn't it?
No, because the costal plates are supposed to be osteoderms (at least under
the pareiasaur hypothesis), osteoderms being neomorphic ossifications in the
But _Odontochelys_ has no osteoderms whatsoever.
Except the costal plates...