Suborder:
|
Tornoceratina
|
Superfamily:
|
Prionoceratoidea
|
Family:
|
Prionoceratidae
|
Subfamily:
|
Acutimitoceratinae
|
Genus:
|
Acutimitoceras
|
Subgenus:
|
Acutimitoceras
|
Species:
|
acutum aff. |
Qualifier:
|
sy |
Author:
|
Weyer 1976,p.839
|
Valid:
|
Acutimitoceras acutum oxynotum B. & W. |
Lower Boundary:
|
Acut.prorsum--A.acutum/G.subinvoluta, 359.2 million years
|
Upper Boundary:
|
DER Acutimit.acutum--Paproth.dorsoplanus, 358.8 million years
|