TaxNo: 1791Praemeroceras petterae+
| Suborder: |
Tornoceratina
|
| Superfamily: |
Dimeroceratoidea
|
| Family: |
Dimeroceratidae
|
| Subfamily: |
Dimeroceratinae
|
| Genus: |
Praemeroceras
|
| Species: | petterae+ |
| Qualifier: | ss |
| Author: |
Petersen 1975,p.31
|
| Lower Boundary: |
UD2D--UD2E:globosum--P.petterae [11,30], 372 million years
|
| Upper Boundary: |
UD2G--UD2H:subvaric.-P.contiguum [12,60], 370.4 million years
|