TaxNo: 27Paragattendorfia sphaeroides
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Prionoceratinae
|
| Genus: |
Paragattendorfia
|
| Species: | sphaeroides |
| Qualifier: | ss |
| Author: |
Weyer 1972,p.340
|
| Lower Boundary: |
DER Acutimit.acutum--Paproth.dorsoplanus, 358.8 million years
|
| Upper Boundary: |
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|