Suborder:
|
Goniatitina
|
Superfamily:
|
Gonioloboceratoidea
|
Family:
|
Gonioloboceratidae |
Qualifier:
|
fa |
Author:
|
Spath 1934,p.15
|
Lower Boundary:
|
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
Upper Boundary:
|
UTX Bursum Fm. top, 294.6 million years
|