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RE: Nasolacrimal crest

> From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
> gmbra@it.net.au
>
> Thanks to all those who replied giving defintions.
> With regard to the nasolacrimal crest, does this (these) always have an
> underlying bony projection from the nasal and lacrimal bones, or can it
> (they) be simply non-bony tissue?
> thanks

As this term is used in paleo, it requires the presence of bony material.
(Otherwise we wouldn't know about them, barring lagerstatten).

                Thomas R. Holtz, Jr.
                Vertebrate Paleontologist
Department of Geology           Director, Earth, Life & Time Program
University of Maryland          College Park Scholars
                College Park, MD  20742
http://www.geol.umd.edu/~tholtz/tholtz.htm
http://www.geol.umd.edu/~jmerck/eltsite
Phone:  301-405-4084    Email:  tholtz@geol.umd.edu
Fax (Geol):  301-314-9661       Fax (CPS-ELT): 301-405-0796