TaxNo: 2581Asturoceras romanum
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Dimorphoceratidae
|
| Subfamily: |
Dimorphoceratinae
|
| Genus: |
Asturoceras
|
| Species: | romanum |
| Qualifier: | ss |
| Author: |
Riley 1985,p.220
|
| Lower Boundary: |
GBY E2a3--E2b1(Eu.yatesae--Cr.edalensis), 322.5 million years
|
| Upper Boundary: |
GBY E2b1--E2b2 (Cr.edalensis--holmesi), 322 million years
|