Classification of Popov 2000
Subph. Linguliformea Williams et al. 1996
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Cl. Lingulata Gorjansky and Popov 1985
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Or. †Acrotretida Kuhn 1949
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Superfm. †Acrotretoidea Schuchert 1893
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Or. †Lingulida Waagen 1885
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Superfm. †Discinoidea Gray 1840
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Superfm. Linguloidea Menke 1828
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Cl. †Paterinata Williams et al 1996
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