TaxNo: 6797Subfamily Aristoceratinae
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Thalassoceratidae
|
| Subfamily: | Aristoceratinae |
| Qualifier: | sy |
| Author: |
Leonova 2002,p.S41
|
| Valid: |
Thalassoceratinae [TAX6798) |
| Lower Boundary: |
Kasimovian--Gzhelian [KAS--GZE], 303.9 million years
|
| Upper Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|