Plesiosaur questions

[jamolnar@juno.com]

Howdy, gang!

I need some details to fill out my volunteer training information for
this summer's DINAMATION dinosaur exhibit.  We're including some aquatic
Mesozoic reptiles, and I could sure use the following information (and/or
leads to it): 

Thalassomedon (plesiosaur, elasmosaur): 
1) what's its estimated weight?
2) Any other nifty tidbits, besides having 76 vertebrae in its neck!

Kronosaurus:
1) what's its time period, in millions of years, i.e., when it was alive?
2) what are the short-necked plesiosaurs called now a days?  Isn't
pliosaur passe?
3) what's its estimated weight?

Thanks!  Since this is tangential to dinosaurs, please reply off list!!

Judy Molnar
Education Associate, Virginia Living Museum
vlmed@juno.com
jamolnar@juno.com
All questions are valid; all answers are tentative.

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