TaxNo: 6226Subfamily Ammonellipsitinae
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Pericyclidae
|
| Subfamily: | Ammonellipsitinae |
| Qualifier: | fs |
| Author: |
Riley 1996,p.69
|
| Lower Boundary: |
mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
|
| Upper Boundary: |
Chadian--Arundian [V1a--V1b] [CHD--ARU], 344.5 million years
|