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Suborder:
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Goniatitina
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Superfamily:
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Nomismoceratoidea
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Family:
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Nomismoceratidae
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Subfamily:
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Baschkiritinae |
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Qualifier:
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fy |
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Author:
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Ruzhencev 1960,p.204
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Valid:
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Girtyoceratinae Wedekind 1918 TAX4004 |
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Lower Boundary:
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DER Erdbacher Kalk base [05,40], 349.5 million years
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Upper Boundary:
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U Chesterian--Halian [MIS--PEN], 318.1 million years
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