TaxNo: 3047Genus Streptodiscus
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Pericyclidae
|
| Subfamily: |
Pericyclinae
|
| Genus: | Streptodiscus |
| Qualifier: | gy |
| Author: |
Miller 1862,p.71
|
| Valid: | Ammonellipsites Parkinson 1822 |
| Lower Boundary: |
Pericyclus--Fasciperic./Ammonellips.BZ, 348.5 million years
|
| Upper Boundary: |
IRL Lower Limestone top, 345.3 million years
|