We visited Costa Rica in 1993 and 1994. There still seems to be some confusion about the border between Pleiocene and Pliocene deposits. We decided to place all our shell in the pliocene but will give you on the screens more info about the formation or the locality.
Screen 1: Dentaliida
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| Dentalium dissimile (18 mm), colno 30646 Rio Banana Formation |
Dentalium pyrum (6 mm), colno 30647 Rio Banana Formation |
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| Dentalium species (17 mm), colno 58874 Montezuma Formation |
Dentalium species (19 mm), colno 58920 Montezuma Formation |
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