TaxNo: 3812Metalegoceras rotundatum
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Metalegoceratidae
|
| Subfamily: |
Metalegoceratinae
|
| Genus: |
Metalegoceras
|
| Species: | rotundatum |
| Qualifier: | ss |
| Author: |
Ruzhencev 1956,p.129
|
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Aktastinian--Baigendzhinian [AKT--BAI], 282 million years
|