Suborder:
|
Tornoceratina
|
Superfamily:
|
Prionoceratoidea
|
Family:
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Prionoceratidae
|
Subfamily:
|
Prionoceratinae
|
Genus:
|
Imitoceras
|
Species:
|
jessieae |
Qualifier:
|
ss |
Author:
|
Miller & Gurley 1896,p.46
|
Lower Boundary:
|
UIA Wassonville Fm. base, 356 million years
|
Upper Boundary:
|
UIA Wassonville Fm. top, 353 million years
|