Suborder:
|
Tornoceratina
|
Superfamily:
|
Prionoceratoidea
|
Family:
|
Prionoceratidae
|
Subfamily:
|
Acutimitoceratinae
|
Genus:
|
Acutimitoceras
|
Subgenus:
|
Stockumites
|
Species:
|
rotiforme |
Qualifier:
|
ss |
Author:
|
Librovitch 1940,p.24
|
Lower Boundary:
|
KAK Kassini base, 357.5 million years
|
Upper Boundary:
|
KAK Kassini top, 353 million years
|