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  > > First rudists

The rudists are an odd group of pelecypods (molluscs/clams) which
resemble corals in appearance and were major reef formers in the
Mesozoic.  They all died out in the Cretaceous, but before the terminal
event if I remember correctly.  Rudist reefs have been major targets
for hydrocarbon exploration over the years.

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      Brian J. O'Neill                    Phone:  (504) 588-4351
      Shell Offshore Inc.                 Room:   OSS-2916             
      P.O. Box 61933                      E-mail: boneill@shell.com
        
      New Orleans LA  70161               Profs:  bjo5  
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