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Re: MAMMALS AS DINOSAUR ANALOGUES II
Brian Franczak writes;
>And I'm not certain I understand the reference to ceratopians. The
>ceratopian frill served as an area of muscle attachment for the jaws, not
>as support for the head or neck. To help support their massive heads, the
>first three cervical vertebrae of ceratopians are fused.
I used the ceratopian analogy to illustrate that elongation of bony
structures is often used to strengthen muscle attachment sites. By
elongating the frill, the jaw muscles can become larger, and
I advance this idea to _Spinosaurus_ to suggest that some kind, perhaps
several kinds, of musclature benefited from elongated neural spines. I
have no idea which muscle(s) benefitted from this, or why it did in the
first place. Whatever the reason, it could be reasonable to suggest that
Spiny-evolution selected for longer neural spines for the same reason that
_Ouranosaurus_ elongated it's spines. The real trick is finding that
An interesting idea in any right.
Orphan Vertebrate Paleontologist
"Great, he's even sounding like a Vorlon."