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Suborder:
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Tornoceratina
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Superfamily:
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Praeglyphioceratoidea
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Family:
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Sporadoceratidae
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Genus:
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Sporadoceras
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Species:
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conforme |
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Qualifier:
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ss |
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Author:
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Korn, Ebbighausen, Bockwinkel 2015, p. 60
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Lower Boundary:
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UD3C--UD4A:(annulata Zone base) [14,90], 367.6 million years
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Upper Boundary:
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UD4A--UD4B: dunkeri Zone base [15,55], 366.8 million years
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