TaxNo: 5306Genus Metaricoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Adrianitoidea
|
| Family: |
Adrianitidae
|
| Subfamily: |
Adrianitinae
|
| Genus: | Metaricoceras |
| Qualifier: | gy |
| Author: |
Ruzhencev 1950,p.203
|
| Valid: |
Aricoceras Ruzhentsev,1950, p.203 [TAX5296] |
| Lower Boundary: |
RIT Basleo beds base, 270.6 million years
|
| Upper Boundary: |
RIT Basleo beds top, 267.5 million years
|