| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Gattendorfiinae
|
| Genus: |
Zadelsdorfia?
|
| Species: | aperta |
| Qualifier: | ss |
| Author: |
Schindewolf 1926,p.72
|
| Lower Boundary: |
DET Zadelsdorf base, 353 million years
|
| Upper Boundary: |
DET Zadelsdorf top, 349 million years
|
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