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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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Tapashanitidae
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Genus:
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Tapashanites
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Species:
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acuticostatus |
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Qualifier:
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ss |
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Author:
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Zhao et al. 1978,p.115
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Lower Boundary:
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Paratirol./Shevyrev.--Pseudosteph./Tap., 253 million years
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Upper Boundary:
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Pseudosteph./Tap.--Pseudotir./Pleuron., 252.5 million years
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