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Suborder:
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Agoniatitina
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Superfamily:
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Mimoceratoidea
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Family:
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Mimoceratidae
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Genus:
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Aphyllites |
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Qualifier:
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gy |
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Author:
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Mojsisovics 1882,p.181
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Valid:
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Gyroceratites von Meyer 1831 |
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Lower Boundary:
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CZB Middle--Upper Zlichov Lst., 405.8 million years
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Upper Boundary:
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DEH Hasselfelde Lst. top, 398 million years
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