Suborder:
|
Goniatitina
|
Superfamily:
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Thalassoceratoidea
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Family:
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Bisatoceratidae
|
Genus:
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Bisatoceras
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Species:
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hoeni |
Qualifier:
|
ss |
Author:
|
Nassichuk 1975,p.100
|
Lower Boundary:
|
U Chesterian--Halian [MIS--PEN], 318.1 million years
|
Upper Boundary:
|
U Halian--Bloydian, Brentwood base, 313 million years
|