TaxNo: 4832Subfamily Nuculoceratinae
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: | Nuculoceratinae |
| Qualifier: | fs |
| Author: |
Ruzhencev 1957,p.58
|
| Lower Boundary: |
RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
|
| Upper Boundary: |
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
|