TaxNo: 228Imitoceras ixion
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Prionoceratinae
|
| Genus: |
Imitoceras
|
| Species: | ixion |
| Qualifier: | ss |
| Author: |
Hall 1860,p.125
|
| Lower Boundary: |
UIN Rockford Lst. base, 354 million years
|
| Upper Boundary: |
UIN Rockford Lst. + low.Nancy Mb. top, 352 million years
|