Data: this shell was found in savannah tn. it appears to be very old. it is very thick and heavy, i would like to know what it is. thanks, don

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Identified:

Discussions:

• Exogyra or other Gryphaeidae (Ostreoidea) ...Andrew G.

• The first one is a Exogyra species. Even though it is coiled it is actually a type of oyster
  ...Douglas S.