TaxNo: 1532Tornoceras? iowaense
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: |
Tornoceratidae
|
| Subfamily: |
Tornoceratinae
|
| Genus: |
Tornoceras?
|
| Species: | iowaense |
| Qualifier: | ss |
| Author: |
Miller 1938,p.152
|
| Lower Boundary: |
Eifel.--Givetian [dm96:08,20] [EIF--GIV], 391.8 million years
|
| Upper Boundary: |
mid.--up.varcus Zone [17,00], 389 million years
|