TaxNo: 6555Metalegoceras arcticum
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Metalegoceratidae
|
| Subfamily: |
Metalegoceratinae
|
| Genus: |
Metalegoceras
|
| Species: | arcticum |
| Qualifier: | ss |
| Author: |
Bogoslovskaya 1982,p.63
|
| Lower Boundary: |
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
| Upper Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|