TaxNo: 6653Pennoceras heckeli
| Suborder: |
Goniatitina
|
| Superfamily: |
Gonioloboceratoidea
|
| Family: |
Wiedeyoceratidae
|
| Genus: |
Pennoceras
|
| Species: | heckeli |
| Qualifier: | ss |
| Author: |
Work et al. 2007,p.592
|
| Lower Boundary: |
UOK Coffeyville Fm. base, 306.2 million years
|
| Upper Boundary: |
UOK Coffeyville Fm. top, 305.9 million years
|