Suborder:
|
Goniatitina
|
Superfamily:
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Nomismoceratoidea
|
Family:
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Nomismoceratidae
|
Genus:
|
Hudsonoceras |
Qualifier:
|
ge |
Author:
|
Moore 1946,p.433
|
Lower Boundary:
|
GBY H1b-H2a (Hudsonoceras proteus base), 317.7 million years
|
Upper Boundary:
|
UAR Cane Hill--Prairie Grove of Hale Fm., 314.8 million years
|