Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
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Vidrioceratidae
|
Genus:
|
Stacheoceras
|
Species:
|
gordoni |
Qualifier:
|
ss |
Author:
|
Miller et al. 1957,p.1062
|
Lower Boundary:
|
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
Upper Boundary:
|
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|