Suborder:
|
Agoniatitina
|
Superfamily:
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Mimoceratoidea
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Family:
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Mimoceratidae
|
Genus:
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Gyroceratites
|
Species:
|
sp. |
Qualifier:
|
in |
Author:
|
div. authors
|
Lower Boundary:
|
CZB Middle--Upper Zlichov Lst., 405.8 million years
|
Upper Boundary:
|
DEH Hasselfelde Lst. top, 398 million years
|