Suborder:
|
Goniatitina
|
Superfamily:
|
Dimorphoceratoidea
|
Family:
|
Dimorphoceratidae
|
Subfamily:
|
Glyphiolobinae
|
Genus:
|
Metadimorphoceras
|
Species:
|
varians |
Qualifier:
|
ss |
Author:
|
Moore 1939,p.113
|
Lower Boundary:
|
DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
|
Upper Boundary:
|
DER chalic.--up.Go gamma2,Emstit.novalis, 327.2 million years
|