Suborder:
|
Goniatitina
|
Superfamily:
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Goniatitoidea
|
Family:
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Goniatitidae
|
Genus:
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Goniatites
|
Species:
|
americanus |
Qualifier:
|
ss |
Author:
|
Gordon 1971,p.C41
|
Lower Boundary:
|
UAR Lower Moorefield base, 333 million years
|
Upper Boundary:
|
U Meramecian--Chesterian [MER--CHE], 328 million years
|