TaxNo: 7117Pennoceras bennisoni
| Suborder: |
Goniatitina
|
| Superfamily: |
Gonioloboceratoidea
|
| Family: |
Wiedeyoceratidae
|
| Genus: |
Pennoceras
|
| Species: | bennisoni |
| Qualifier: | ss |
| Author: |
Work et al. 2007,p.595
|
| Lower Boundary: |
U Desmoinesian--Missourian [DES--MIS], 306.5 million years
|
| Upper Boundary: |
UOK Coffeyville Fm. top, 305.9 million years
|