Suborder:
|
Goniatitina
|
Superfamily:
|
Thalassoceratoidea
|
Family:
|
Thalassoceratidae |
Qualifier:
|
fa |
Author:
|
Hyatt 1900,p.553
|
Lower Boundary:
|
Moscovian--Kasimovian [MOS--KAS], 306.5 million years
|
Upper Boundary:
|
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|