TaxNo: 1419Petteroceras errans+
| Suborder: |
Anarcestina
|
| Superfamily: |
Triainoceratoidea
|
| Family: |
Petteroceratidae
|
| Genus: |
Petteroceras
|
| Species: | errans+ |
| Qualifier: | ss |
| Author: |
Petter 1959,p.142
|
| Lower Boundary: |
mid.--up.varcus Zone [17,00], 389 million years
|
| Upper Boundary: |
Givetian--Frasnian [GIV--FRS], 385.3 million years
|