[AndrewC]

P.S. What makes theTeinolophos specimen surprising is a large groove in its adult jawbone, which indicates that the smaller bones had not yet detached.

"Not detached" does not mean "partially migrated" in my book.

[VadeRetro]

The jaw of Teinolophos trusleri catches the ear bones in the act of separating from the jaw.

Perhaps if the above had been in red, Counselor?