Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Maxigoniatitidae
|
Subfamily:
|
Dzhaprakoceratinae
|
Genus:
|
Dzhaprakoceras
|
Species:
|
subglobosum |
Qualifier:
|
ss |
Author:
|
Librovitch 1927,p.35
|
Lower Boundary:
|
RUN Kos'vinskii--Nortnichskii, 340 million years
|
Upper Boundary:
|
RUN Nortnichskiy gorizont top, 339 million years
|