TaxNo: 3764Family Prionoceratidae
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: | Prionoceratidae |
| Qualifier: | fa |
| Author: |
Hyatt 1884,p.328
|
| Lower Boundary: |
P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years
|
| Upper Boundary: |
RUS Nm1c1--Nm1c2(uralicus--Del.bressoni), 322 million years
|