Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
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Maxigoniatitidae
|
Genus:
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Bollandoceras
|
Species:
|
sp.2 |
Qualifier:
|
of |
Author:
|
Riley 1996
|
Lower Boundary:
|
Chadian--Arundian [V1a--V1b] [CHD--ARU], 344.5 million years
|
Upper Boundary:
|
Arundian--Holkerian [V2a--V2b][ARU--HLK], 340 million years
|