TaxNo: 1977Cousteauceras costatum+
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Cousteauceras
|
| Species: | costatum+ |
| Qualifier: | ss |
| Author: |
Ruprecht 1937,p.271
|
| Lower Boundary: |
DER liethensis--chalicum, 327.6 million years
|
| Upper Boundary: |
DER chalic.--up.Go gamma2,Emstit.novalis, 327.2 million years
|