TaxNo: 6787Subfamily Xenosporadoceratinae
| Suborder: |
Tornoceratina
|
| Superfamily: |
Praeglyphioceratoidea
|
| Family: |
Sporadoceratidae
|
| Subfamily: | Xenosporadoceratinae |
| Qualifier: | fy |
| Author: |
Korn 2002,p.576
|
| Valid: |
Sporadoceratidae Miller & Furnish, 1957 [TAX5829] |
| Lower Boundary: |
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
|
| Upper Boundary: |
UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|