Suborder:
|
Goniatitina
|
Superfamily:
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Neoglyphioceratoidea
|
Family:
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Ferganoceratidae
|
Genus:
|
Ferganoceras
|
Species:
|
bisinum |
Qualifier:
|
ss |
Author:
|
Delépine 1935,p.178
|
Lower Boundary:
|
DZA Saoura S3b--S3c, 327 million years
|
Upper Boundary:
|
DZA Saoura S3c--S4a, 326.4 million years
|