TaxNo: 6685Masonoceras kentuckiense+*
| Suborder: |
Tornoceratina
|
| Superfamily: |
Karagandoceratoidea
|
| Family: |
Karagandoceratidae
|
| Genus: |
Masonoceras
|
| Species: | kentuckiense+* |
| Qualifier: | ss |
| Author: |
Work & Manger 2002,p.575
|
| Lower Boundary: |
U Kinderhookian--Osagean [KIH--OSA], 353 million years
|
| Upper Boundary: |
G.typicus--anchoralis-latus Z. base [0, 349 million years
|