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Suborder:
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Paraceltitina
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Superfamily:
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Xenodiscoidea
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Family:
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Paraceltitidae |
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Qualifier:
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fa |
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Author:
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Spath 1930,p.13
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Lower Boundary:
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Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
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Upper Boundary:
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Anderssonoc./Prototoc.--Araxoc./Kongl., 258 million years
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