Suborder:
|
Goniatitina
|
Superfamily:
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Nomismoceratoidea
|
Family:
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Nomismoceratidae
|
Genus:
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Hudsonoceras
|
Species:
|
proteus* |
Qualifier:
|
ss |
Author:
|
Brown 1841,p.217
|
Lower Boundary:
|
GBY H1b-H2a (Hudsonoceras proteus base), 317.7 million years
|
Upper Boundary:
|
GBY H2a--H2b (Hu.proteus--Ho.undulatum), 317.5 million years
|