TaxNo: 4358Sulcogirtyoceras intracostatum
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Sulcogirtyoceras
|
| Species: | intracostatum |
| Qualifier: | sy |
| Author: |
Knopp 1931,p.11
|
| Valid: | Sulcugirtyoceras burhennei (Brüning '23) |
| Lower Boundary: |
DER Go spirale--Go beta rotundum, 328.6 million years
|
| Upper Boundary: |
DER Go beta--gamma, granos.base [P1--P2], 328.2 million years
|