TaxNo: 1971Sulcogirtyoceras burhennei+
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Sulcogirtyoceras
|
| Species: | burhennei+ |
| Qualifier: | ss |
| Author: |
Brüning 1923,p.265
|
| Lower Boundary: |
DER Go spirale--Go beta rotundum, 328.6 million years
|
| Upper Boundary: |
DER rotundum--Go beta suerlandense, 328.4 million years
|