Suborder:
|
Goniatitina
|
Superfamily:
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Gastrioceratoidea
|
Family:
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Gastrioceratidae
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Genus:
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Cancelloceras
|
Subgenus:
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Crencelloceras
|
Species:
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demaneti |
Qualifier:
|
ss |
Author:
|
Patteisky 1959,p.34
|
Lower Boundary:
|
Marsdenian--Yeadonian [MRD--YEA], 313.8 million years
|
Upper Boundary:
|
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|