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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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timorense forma eta |
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Qualifier:
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ss |
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Author:
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Haniel 1915,p.99
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Lower Boundary:
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RIT Amarassi beds base, 260.4 million years
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Upper Boundary:
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RIT Amarassi beds top, 258 million years
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