Suborder:
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Tornoceratina
|
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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Epitornoceras |
Qualifier:
|
ge |
Author:
|
Frech 1902,p.51
|
Lower Boundary:
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MD3A--MD3B:latesept.--lunulicosta[17,90], 388 million years
|
Upper Boundary:
|
UD1B--UD1C:stylioph.--T.kayserl. [01,70], 383.3 million years
|