TaxNo: 5237Genus Shyndoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Shumarditoidea
|
| Family: |
Perrinitidae
|
| Genus: | Shyndoceras |
| Qualifier: | gy |
| Author: |
Leonova 1983,p.47
|
| Valid: | Metaperrinites Ruzhentsev,1950,p.166 [5234] |
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|