Suborder:
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Tornoceratina
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Superfamily:
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Tornoceratoidea
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Family:
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Tornoceratidae
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Subfamily:
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Aulatornoceratinae
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Genus:
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Kirsoceras
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Species:
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kayseri |
Qualifier:
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ss |
Author:
|
Drevermann 1901,p.135
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Lower Boundary:
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UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|
Upper Boundary:
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UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|