Classification of Kornicker and Imbrie 1958
Fm. †Stichopitidae Frizzell and Exline 1955
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G. †Parvispina Kornicker and Imbrie 1958
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†Parvispina harpago Kornicker and Imbrie 1958
†Parvispina spinosa Frizzell and Exline 1955
Fm. †Achistridae Frizzell and Exline 1955
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Fm. Theeliidae Frizzell and Exline 1955
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