Suborder:
|
Goniatitina
|
Superfamily:
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Schistoceratoidea
|
Family:
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Schistoceratidae
|
Genus:
|
Branneroceras
|
Species:
|
triangularum |
Qualifier:
|
ss |
Author:
|
Sheng 1987,p.173
|
Lower Boundary:
|
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
Upper Boundary:
|
U Morrowan (Bloydian)--Atokan[MOR--ATO], 310.4 million years
|