TaxNo: 5660Genus Aenigmatoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: |
Cravenoceratinae
|
| Genus: | Aenigmatoceras |
| Qualifier: | ge |
| Author: |
Ruzhencev & Bog. 1978,p.144
|
| Lower Boundary: |
RUS Nm2b1--Nm2b2(S.krest.--P.alpharhip.), 316.8 million years
|
| Upper Boundary: |
RUS Nm2b3--Nm2c1,Bilinguites-Cancelloc.G, 314.8 million years
|