TaxNo: 1683Maternoceras crassoides
| Suborder: |
Anarcestina
|
| Superfamily: |
Beloceratoidea
|
| Family: |
Gephuroceratidae
|
| Subfamily: |
Gephuroceratinae
|
| Genus: |
Maternoceras
|
| Species: | crassoides |
| Qualifier: | ss |
| Author: |
Matern 1931,p.67
|
| Lower Boundary: |
DER do one beta base, 378.7 million years
|
| Upper Boundary: |
DER do one beta--do one gamma, 377.5 million years
|