Suborder:
|
Goniatitina
|
Superfamily:
|
Gonioloboceratoidea
|
Family:
|
Gonioloboceratidae
|
Genus:
|
Gonioloboceras
|
Species:
|
sp.nov. |
Qualifier:
|
sy |
Author:
|
Ruzhencev 1960,p.207
|
Valid:
|
Arcanoceras burmai Miller & D. TAX2232 |
Lower Boundary:
|
ESC Grey Marl Alba Fm. base, 324 million years
|
Upper Boundary:
|
ESC Grey Marl Alba Fm. top, 321 million years
|