TaxNo: 3899Propinacoceras junctum
| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Propinacoceratinae
|
| Genus: |
Propinacoceras
|
| Species: | junctum |
| Qualifier: | ss |
| Author: |
Leonova 1989,p.88
|
| Lower Boundary: |
Kochusu Fm.,lower, lower--middel part, 270 million years
|
| Upper Boundary: |
Kochusu Fm., upper, lower--middel part, 268.9 million years
|