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In the course of my aetosaur
research, I have come across the names of elements that I don''t
recognize. These are found in older references (1947 and 1961), and I
think they may be older names for other bones:
"SUPRAORBITALS" are described as an
'arch of bones" at the sides of the frontal, prefrontal, and postfrontal,
and partially lying underneath the bones of the skull roof. In one
specimen, they are described as "curved into an arc to simulate sclerotic
plates".
"TRANSPALANTINES" is described as a
rod-shaped palatal bone that is oriented "dorsomesially", and abuts
against the maxilla and jugal and is overlapped by the lcrimal.
Dorsolaterally, "it is continuous with the anteroventral rim of the
orbit", and proximally it overpals the anterior part of the descending
process of the pterygoid. The "anteromesial" part borders the
suborbital palatal vacuity.
Also, what direction does
"mesial" refer to? DINOSAURIA defines it for use in describing
teeth as "the edge of the tooth toward the symphysis or premaxillary
midline", but I see it being used in describing bones. Is it the same
as "anterior", "medial", or something else?
LNJ
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