Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Maxigoniatitidae
|
Subfamily:
|
Dzhaprakoceratinae
|
Genus:
|
Dzhaprakoceras |
Qualifier:
|
ge |
Author:
|
Popov 1965,p.140
|
Lower Boundary:
|
UAR Walls Ferry Fm. base, 356 million years
|
Upper Boundary:
|
ESC lower Alba Fm. (Marbre griotte) top, 339 million years
|