TaxNo: 2518Cravenoceras holmesi
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: |
Cravenoceratinae
|
| Genus: |
Cravenoceras
|
| Species: | holmesi |
| Qualifier: | ss |
| Author: |
Bisat 1932,p.31
|
| Lower Boundary: |
GBY E2b1--E2b2 (Cr.edalensis--holmesi), 322 million years
|
| Upper Boundary: |
GBY E2b2--E2b3 (holmesi--Cr.nititoides), 321.5 million years
|