TaxNo: 2521Nuculoceras nuculum+
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: |
Nuculoceratinae
|
| Genus: |
Nuculoceras
|
| Species: | nuculum+ |
| Qualifier: | ss |
| Author: |
Bisat 1924,p.100
|
| Lower Boundary: |
GBY E2c1--E2c2(Nu.stellarum--Nu.nuculum), 320.5 million years
|
| Upper Boundary: |
GBY E2c4--H1a(Nu.nuculum--I.subglobosum), 319 million years
|