TaxNo: 491Progonioclymenia aegoceras
| Suborder: |
Gonioclymeniina
|
| Superfamily: |
Gonioclymenioidea
|
| Family: |
Hexaclymeniidae
|
| Genus: |
Progonioclymenia
|
| Species: | aegoceras |
| Qualifier: | ss |
| Author: |
Frech 1902,p.31
|
| Lower Boundary: |
UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
|
| Upper Boundary: |
UD5B--UD5C:ornata--P.piriformis [17,50], 364.4 million years
|