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Re: Cloudy With A Chance of New Papers
The osteoderms are not convincing. Turtles (*Odontochelys* included)
have one row of osteoderms dorsal to the neural spines; archosaurs
have an even number of osteoderms dorsal to the epaxial musculature,
_never_ a median one dorsal to the neural spines.
That is, turtles have one row of osteoderms dorsal to the neural spines,
and two more to the sides (one on top of each side of the ribcage,
largely one osteoderm per rib). Archosauriforms have an even number of
osteoderm _rows_ dorsal to the epaxial musculature, usually 1 or 2 per
side; sometimes (like in crocodiles) there are more rows lateral to
these, and those are not anchored to the musculature or the ribcage.