Suborder:
|
Anarcestina
|
Superfamily:
|
Beloceratoidea
|
Family:
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Acanthoclymeniidae
|
Genus:
|
Nordiceras |
Qualifier:
|
ge |
Author:
|
Bogoslovsky 1955,p.1104
|
Lower Boundary:
|
UD1B--UD1C:stylioph.--T.kayserl. [01,70], 383.3 million years
|
Upper Boundary:
|
UD1D--UD1E:S.syngon.--P.lutheri [02,00], 381.6 million years
|