| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Acutimitoceratinae
|
| Genus: |
Acutimitoceras
|
| Subgenus: |
Stockumites
|
| Species: | sphaeroidale |
| Qualifier: | ss |
| Author: |
Vöhringer 1960,p.143
|
| Lower Boundary: |
Devonian--Carboniferous Boundary [DCB], 359.2 million years
|
| Upper Boundary: |
DER Papr.dorsopl.--Pseudar.westfal. [00., 358.4 million years
|
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