TaxNo: 5101Genus Tompophiceras
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Xenodiscidae
|
| Genus: | Tompophiceras |
| Qualifier: | ge |
| Author: |
Popov 1961,p.26
|
| Lower Boundary: |
Permian--Triassic (Induan base), 251 million years
|
| Upper Boundary: |
Induan--Olenekian, Dienerian--Smithian, 249.7 million years
|