Screen 49: Architectonicoidea, Acteonoidea
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| Architectonica simplex (22 mm), colno 51736 Arenas de Bonares Formation |
Discotectonica semisquamosa (17 mm), colno 51592 Piacenzian, Velerin Conglomerates |
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| Acteon species (10 mm), colno 52251 Arenas de Bonares Formation |
Acteon tornatilis (27 mm), colno 51659 Arenas de Bonares Formation |
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