Classification of Xia et al. 2007

Subor. †Esthonioporina Astrova 1978
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Fm. †Aisenvergiidae Dunaeva 1964
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Subfm. †Aisenvergiinae Dunaeva 1964
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G. †Orbiramus Xia et al. 2007
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†Orbiramus minus Xia et al. 2007
†Orbiramus normalis Xia et al. 2007
†Orbiramus ovalis Xia et al. 2007
Subfm. †Orbiporinae Astrova 1978
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G. †Nekhorosheviella Modzalevskaya 1953
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†Nekhorosheviella nodulifera Xia et al. 2007
†Nekhorosheviella semisphaerica Xia et al. 2007
G. †Orbipora Eichwald 1856
Subor. †Ptilodictyina Astrova and Morozova 1956
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Fm. †Ptilodictyidae Zittel 1880
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Subfm. †Rhinidictyinae Ulrich 1878
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G. †Prophyllodictya Gorjunova and Lavrentjeva 1987
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†Prophyllodictya prisca Xia et al. 2007
G. †Rhinidictya Ulrich 1882