TaxNo: 1314Genus Cryptotyloceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Glaphyritidae
|
| Subfamily: |
Glaphyritinae
|
| Genus: | Cryptotyloceras |
| Qualifier: | ge |
| Author: |
Titus 2000,p.31
|
| Lower Boundary: |
GBY E2a2--E2a3 (Eu.bisulcatum--yatesae), 323 million years
|
| Upper Boundary: |
DER E2a--E2b, 322.5 million years
|