Suborder:
|
Goniatitina
|
Superfamily:
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Neoglyphioceratoidea
|
Family:
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Cravenoceratidae
|
Subfamily:
|
Cravenoceratinae
|
Genus:
|
Emstites |
Qualifier:
|
ge |
Author:
|
Korn 1988,p.140
|
Lower Boundary:
|
DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
|
Upper Boundary:
|
Pendleian--Arnsbergian [PND--ARN], 324 million years
|