Suborder:
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Clymeniina
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Superfamily:
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Clymenioidea
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Family:
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Piriclymeniidae
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Genus:
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Sulcoclymenia |
Qualifier:
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ge |
Author:
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Schindewolf 1972,p.28
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Lower Boundary:
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UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|
Upper Boundary:
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UD4B--UD4C: serpentina Zone base [16,45], 366.4 million years
|