Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
|
Vidrioceratidae
|
Genus:
|
Prostacheoceras
|
Species:
|
dentatum |
Qualifier:
|
sy |
Author:
|
Ruzhencev 1938,p.257
|
Valid:
|
Prostacheoceras juresanense (Maks. 1935) |
Lower Boundary:
|
Gzhelian--Asselian [C--P], 299 million years
|
Upper Boundary:
|
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|