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RE: nesting rexes (resting nexes?)



Actually, HAVE any Tyrannosaur eggs been found? Someone on the list
mentioned that eggs found in Mongolia MIGHT not have been from Toborosaurus,
but from Theirizinosaurus, didn't they? I'm not aware of any eggs identified
as definitely coming from a Tyrannosaur.  Am I wrong about this?

I have read some articles discussing the possibility that that at least
later saurapods might have borne live young.  Which leads to the question:
have any eggs been identified AS saurapod eggs?

Dwight  

        -----Original Message-----
        From:   Close, James [SMTP:James.Close@LibertyMutual.com]
        Sent:   Friday, August 21, 1998 11:41 AM
        To:     dinosaur@usc.edu
        Subject:        RE: nesting rexes (resting nexes?)

        Novice Question #292:
        do we even know for a fact that T-Rex laid eggs? What if it just
bore
        its young live?

        Jamie Close

        > -----Original Message-----
        > From: Thomas R. Holtz, Jr. [SMTP:th81@umail.umd.edu]
        > Sent: Tuesday, August 18, 1998 8:43 AM
        > To:   dinosaur@usc.edu
        > Subject:      nesting rexes (resting nexes?)
        > 
        > Folks,
        > 
        > Much as I like tyrants (well, tyrant dinos at least), I do not
think
        > that
        > brooding would be a likely behavior for them.  My expectation, on
        > biomechanical grounds, would be that they were mound nesters.
        > Hopefully
        > some of the big eggs out of China will prove to be tyrannosaurids
(and
        > not
        > therizinosauroids), and (also hopefully, but less so, given the
way
        > these
        > things seem to be collected... :-S ) the proper site sedimentology
and
        > taphonomy will be done to try and determine if sand, plant
fragments,
        > etc.
        > were associated with the egg sites.
        > 
        > Thomas R. Holtz, Jr.
        > Vertebrate Paleontologist     Webpage: http://www.geol.umd.edu
        > Dept. of Geology              Email:th81@umail.umd.edu
        > University of Maryland        Phone:301-405-4084
        > College Park, MD  20742       Fax:  301-314-9661
        >