Suborder:
|
Tornoceratina
|
Superfamily:
|
Prionoceratoidea
|
Family:
|
Prionoceratidae
|
Subfamily:
|
Prionoceratinae
|
Genus:
|
Prionoceras?
|
Species:
|
globus |
Qualifier:
|
sy |
Author:
|
Sobolev 1914,p.40
|
Valid:
|
Prionoceras divisum Münster,1832 |
Lower Boundary:
|
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|
Upper Boundary:
|
P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years
|