TaxNo: 3226Propinacoceras aktubense
| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Propinacoceratinae
|
| Genus: |
Propinacoceras
|
| Species: | aktubense |
| Qualifier: | ss |
| Author: |
Ruzhencev 1939,p.839
|
| Lower Boundary: |
Aktastinian--Baigendzhinian [AKT--BAI], 282 million years
|
| Upper Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|