TaxNo: 4820Genus Alaoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: |
Cravenoceratinae
|
| Genus: | Alaoceras |
| Qualifier: | ge |
| Author: |
Ruzhencev & Bog. 1971,p.250
|
| Lower Boundary: |
RUS Nm1a1--Nm1a2 (P.cloudi--Do.miranda), 327.4 million years
|
| Upper Boundary: |
RUS Nm1b1--Nm1b2 (Domb.carinat.--tectus), 324.6 million years
|