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Suborder:
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Goniatitina
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Superfamily:
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Goniatitoidea
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Family:
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Goniatitidae
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Genus:
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Lusitanoceras
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Species:
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subtenue |
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Qualifier:
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ss |
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Author:
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Kuzina 1999,p.75
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Lower Boundary:
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Bollandoc./Bollandit.--Beyrichoceras BZ, 334.5 million years
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Upper Boundary:
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DER Go beta--gamma, granos.base [P1--P2], 328.2 million years
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