COSTA RICA: Miocene, Punta Judas Formation

We visited Costa Rica in 1993 and 1994. There are several rich sites for miocene shells in Costa Rica. A good book to identify your results:
The Miocene of Northern Costa Rica, written by A.A.Olsson in 1922, published by the Cornell University, Ithaca, New York. Our own finds are mostly not yet identified properly. We show them anyaway.

Screen 1: Dentaliida, Cirroidea, Stromboidea, Cerithioidea
Dentalium species Tegula species
Dentalium species (25 mm), colno 59116 Tegula species (17 mm), colno 59126
Strombus species Turritella species
Strombus species (210 mm), colno 30021 Turritella species (55 mm), colno 59078
Next Back to general survey collections
Dentaliida Cirroidea Stromboidea Cerithioidea Ptenoglossa Janthinoidea Buccinoidea
Columbelloidea Conoidea Mitroidea Volutoidea Muricoidea Naticoidea Calyptraeoidea
Tonnoidea Architectonicoidea Arcoidea Limopsoidea Pectinoidea Carditoidea Cardioidea
Mactroidea Tellinoidea Veneroidea Myoidea Pandoroidea