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calzola wrote-
are there, among the various hadrosaurian remains
,unetched bones?
No. All four caudals and the dentary fragment
have surface damage.
what about the predator's ones?
"None of the bones exhibit any surface modification
such as weathering or abrasion-induced damage. Except for breakage resulting
from recent exposure, elements appear complete."
So yes, I agree that an acidic environment cannot
be the reason for the etching.
Mickey Mortimer
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