Suborder:
|
Goniatitina
|
Superfamily:
|
Dimorphoceratoidea
|
Family:
|
Dimorphoceratidae
|
Subfamily:
|
Glyphiolobinae
|
Genus:
|
Glyphiolobus
|
Species:
|
lunula |
Qualifier:
|
ss |
Author:
|
Knopp 1931,p.16
|
Lower Boundary:
|
DER Go beta--gamma, granos.base [P1--P2], 328.2 million years
|
Upper Boundary:
|
DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
|