Suborder:
|
Goniatitina
|
Superfamily:
|
Neoicoceratoidea
|
Family:
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Neoicoceratidae
|
Subfamily:
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Neoicoceratinae
|
Genus:
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Neoicoceras
|
Species:
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elkhornense+ |
Qualifier:
|
ss |
Author:
|
Miller & Gurley 1896,p.37
|
Lower Boundary:
|
UKY Kendrick Shale base, 313 million years
|
Upper Boundary:
|
UKY Kendrick Shale top, 310.6 million years
|