Suborder:
|
Goniatitina
|
Superfamily:
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Schistoceratoidea
|
Family:
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Dunbaritidae
|
Genus:
|
Dunbarites
|
Species:
|
larus |
Qualifier:
|
ss |
Author:
|
Ruzhencev 1974,p.43
|
Lower Boundary:
|
Moscovian--Kasimovian [MOS--KAS], 306.5 million years
|
Upper Boundary:
|
Kasimovian--Gzhelian [KAS--GZE], 303.9 million years
|