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Suborder:
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Goniatitina
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Superfamily:
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Popanoceratoidea
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Family:
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Popanoceratidae
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Genus:
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Popanoceras
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Species:
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tridens forma alpha |
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Qualifier:
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sy |
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Author:
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Haniel 1915,p.103
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Valid:
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Vidrioceras wanneri Schindewolf,1931 (TAX4867 ) |
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Lower Boundary:
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RIT Bitauni beds base, 275.6 million years
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Upper Boundary:
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RIT Bitauni beds top, 270.6 million years
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