TaxNo: 5988Metophiceras subdemissum aff.
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Xenodiscidae
|
| Genus: |
Metophiceras
|
| Species: | subdemissum aff. |
| Qualifier: | af |
| Author: |
Dagis & Ermakova 1996,p.414
|
| Lower Boundary: |
Permian--Triassic (Induan base), 251 million years
|
| Upper Boundary: |
Griesbachian--Dienerian [GRI--DIE], 250.3 million years
|