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Goniobasis sp. and Viviparus sp. Gastropoda | Green River Formation

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Original price $25.00 - Original price $25.00
Original price
$25.00
$25.00 - $25.00
Current price $25.00

 

    Goniobasis sp. and Viviparas sp.                                  Gastropoda

     Eocene (52.3 Million Years Ago) 

Green River Formation, Wyoming, USA 

      In Stone Fossils Private Quarry

 

Goniobasis sp. (family Pleuroceridae) 28mm x 8mm

Viviparas sp. (family Viviparidae) 20mm x 10mm

Plate size approx. 3.75" x 4"

 

These beautifully preserved aquatic fossils are freshwater snails with an operculum. It is rare to have the two species on the same plate. They thrived during the Eocene and are now known only through fossil records.