|
Suborder:
|
Agoniatitina
|
|
Superfamily:
|
Mimoceratoidea
|
|
Family:
|
Mimoceratidae
|
|
Genus:
|
Gyroceratites
|
|
NomSpecies:
|
dorsolamellatus
|
|
Species:
|
dorsolamellatus |
|
Qualifier:
|
ss |
|
Author:
|
Erben 1953,p.185
|
|
Lower Boundary:
|
DEH Hasselfelde Lst. base, 402 million years
|
|
Upper Boundary:
|
DEH Hasselfelde Lst. top, 398 million years
|