Suborder:
|
Agoniatitina
|
Superfamily:
|
Mimoceratoidea
|
Family:
|
Mimosphinctidae
|
Subfamily:
|
Mimosphinctinae |
Qualifier:
|
fs |
Author:
|
Erben 1953,p.181
|
Lower Boundary:
|
LD3B base:Anetocer.Range Z. base [12,10], 406.4 million years
|
Upper Boundary:
|
Gyroceratites gracilis RZ base [13,80], 404 million years
|