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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Prionoceratidae
|
Subfamily:
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Acutimitoceratinae
|
Genus:
|
Acutimitoceras
|
Subgenus:
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Stockumites
|
Species:
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sphaeroidale |
Qualifier:
|
ss |
Author:
|
Vöhringer 1960,p.143
|
Lower Boundary:
|
Devonian--Carboniferous Boundary [DCB], 359.2 million years
|
Upper Boundary:
|
DER Papr.dorsopl.--Pseudar.westfal. [00., 358.4 million years
|