Suborder:
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Clymeniina
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Superfamily:
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Cyrtoclymenioidea
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Family:
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Cyrtoclymeniidae
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Genus:
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Cyrtoclymenia
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Species:
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ventriosa |
Qualifier:
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ss |
Author:
|
Petter 1960,p.41
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Lower Boundary:
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UD4B--UD4C: serpentina Zone base [16,45], 366.4 million years
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Upper Boundary:
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UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|