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Suborder:
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Tornoceratina
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Superfamily:
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Prionoceratoidea
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Family:
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Gattendorfiidae
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Genus:
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Kazakhstania
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Species:
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mongolica |
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Qualifier:
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ss |
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Author:
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Kuzina 1994,p.165
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Lower Boundary:
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low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
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Upper Boundary:
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mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
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