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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Tornoceras?
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Species:
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nummularius |
Qualifier:
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sn |
Author:
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Roemer 1843,p.35
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Lower Boundary:
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Givetian--Frasnian [GIV--FRS], 385.3 million years
|
Upper Boundary:
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UD1K--UD1L:varicos.--C.holzapfeli [05,35, 375.1 million years
|