Classification of Schram 1980

G. Pecten Müller 1776
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†Pecten sericeum de Verneuil 1845
Or. Isopoda Latreille 1817 [isopod]
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Subor. †Phreatoicidea Stebbing 1893
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Fm. †Palaeophreatoicidae Birshtein 1962
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G. †Palaeophreatoicus Birshtein 1962
Fm. †Erymidae Van Straelen 1924
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G. †Protoclytiopsis Birshtein 1958
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†Protoclytiopsis antiqua Birshtein 1958