Suborder:
|
Goniatitina
|
Superfamily:
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Neoglyphioceratoidea
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Family:
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Cravenoceratidae
|
Subfamily:
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Cravenoceratinae
|
Genus:
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Cravenoceratoides
|
Species:
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macrocephalus |
Qualifier:
|
sn |
Author:
|
Frech 1902,pl.46b
|
Lower Boundary:
|
Pendleian--Arnsbergian [PND--ARN], 324 million years
|
Upper Boundary:
|
Arnsbergian--Chokierian [ARN--CHO], 319 million years
|