TaxNo: 354Hammatocyclus? crenulatus
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Pericyclidae
|
| Subfamily: |
Hammatocyclinae
|
| Genus: |
Hammatocyclus?
|
| Species: | crenulatus |
| Qualifier: | ss |
| Author: |
Koninck 1880,p.112
|
| Lower Boundary: |
BEL Calcaire de Vaulx base, 353 million years
|
| Upper Boundary: |
BEL Vaulx-Calonne, 350 million years
|