Classification of Ronchetti 1970
Or. Pterioida Newell 1965
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Fm. Limidae Rafinesque 1815 [file clam]
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G. †Ctenostreon Eichwald 1862
G. †Plagiostoma Sowerby 1814
G. †Pseudolimea Douglas and Arkell 1932
Or. Veneroida Gray 1854
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Fm. Arcticidae Newton 1891
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G. †Pronoella Fischer 1887
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†Pronoella desioi Ronchetti 1970
†Pronoella karkarensis Ronchetti 1970
Or. Pholadomyoida Newell 1965
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Or. Rhynchonellida Kuhn 1949
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Or. Cephalaspidea Fischer 1883
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Or. Mesogastropoda Thiele 1925
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