Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Muensteroceratidae
|
Genus:
|
Nautellipsites |
Qualifier:
|
gy |
Author:
|
Parkinson 1822,p.164
|
Valid:
|
Muensteroceras vel Beyrichoceras |
Lower Boundary:
|
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|
Upper Boundary:
|
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|