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Suborder:
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Goniatitina
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Superfamily:
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Cycloloboidea
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Family:
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Cyclolobidae
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Genus:
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Procyclolobus |
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Qualifier:
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gy |
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Author:
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Tumanskaia 1939
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Valid:
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Cyclolobus Waagen,1879,p.21 |
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Lower Boundary:
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PAK Chhidru Fm. base, 260.4 million years
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Upper Boundary:
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PAK Chhidru Fm. top, 253 million years
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