Suborder:
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Anarcestina
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Superfamily:
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Triainoceratoidea
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Family:
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Maenioceratidae
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Genus:
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Afromaenioceras
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Species:
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sulcatostriatum+ |
Qualifier:
|
ss |
Author:
|
Bensaïd 1974,p.105
|
Lower Boundary:
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MD2C--MD2D:Afromaenioc.GZ base [16,20], 389.3 million years
|
Upper Boundary:
|
MD2D--MD3A:A.sulcat.--Pharc.lateseptatum, 389 million years
|