Suborder:
|
Goniatitina
|
Superfamily:
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Gastrioceratoidea
|
Family:
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Homoceratidae
|
Subfamily:
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Homoceratinae
|
Genus:
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Isohomoceras
|
Species:
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sp. |
Qualifier:
|
in |
Author:
|
div. authors
|
Lower Boundary:
|
Arnsbergian--Chokierian [ARN--CHO], 319 million years
|
Upper Boundary:
|
Alportian--Kinderscoutian [ALP--KIN], 317 million years
|