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
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Subfamily:
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Acutimitoceratinae
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Genus:
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Acutimitoceras
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Subgenus:
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Stockumites
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Species:
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pulchrum |
Qualifier:
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ss |
Author:
|
Kuzina 1985,p.45
|
Lower Boundary:
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UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|
Upper Boundary:
|
Devonian--Carboniferous Boundary [DCB], 359.2 million years
|