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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Tornoceratinae
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Genus:
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Linguatornoceras
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Species:
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clausum |
Qualifier:
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ss |
Author:
|
Glenister 1958,p.92
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Lower Boundary:
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UD1H--UD1I:tenuistr.--P.tripart. [03,50], 378.1 million years
|
Upper Boundary:
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UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|