TaxNo: 1775Cheiloceras (Cheiloceras) subpartitum evolutum
| Suborder: |
Tornoceratina
|
| Superfamily: |
Dimeroceratoidea
|
| Family: |
Cheiloceratidae
|
| Genus: |
Cheiloceras
|
| Subgenus: |
Cheiloceras
|
| NomSpecies: |
subpartitum
|
| Species: | evolutum |
| Qualifier: | ss |
| Author: |
Becker 1993,p.242
|
| Lower Boundary: |
UD2B--UD2C:(subpartitum Z. base) [09,20], 373.2 million years
|
| Upper Boundary: |
UD2D--UD2E:globosum--P.petterae [11,30], 372 million years
|