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Suborder:
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Goniatitina
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Superfamily:
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Cycloloboidea
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Family:
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Vidrioceratidae
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Genus:
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Stacheoceras
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Species:
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lijiangense |
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Qualifier:
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ss |
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Author:
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Liang 1983,p.608
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Lower Boundary:
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Anderssonoceras/Prototoceras base, 260.4 million years
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Upper Boundary:
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Araxoc./Konglingites--Sanyangites, 256 million years
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