TaxNo: 3572Prototoceras diluterotalum
| Suborder: |
Otoceratina
|
| Family: |
Araxoceratidae
|
| Subfamily: |
Araxoceratinae
|
| Genus: |
Prototoceras
|
| Species: | diluterotalum |
| Qualifier: | ss |
| Author: |
Qin 1986,p.279
|
| Lower Boundary: |
Anderssonoceras/Prototoceras base, 260.4 million years
|
| Upper Boundary: |
Araxoc./Konglingites--Sanyangites, 256 million years
|