TaxNo: 4045Propinacoceras shuangputangense
| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Propinacoceratinae
|
| Genus: |
Propinacoceras
|
| Species: | shuangputangense |
| Qualifier: | ss |
| Author: |
Liang 1981,p.492
|
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|