TaxNo: 6152Arcanoceras macallisteri
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Eogonioloboceratidae
|
| Genus: |
Arcanoceras
|
| Species: | macallisteri |
| Qualifier: | ss |
| Author: |
Gordon 1964,p.A18
|
| Lower Boundary: |
UAR upper Fayetteville--lower Pitkin, 324.3 million years
|
| Upper Boundary: |
UAR Upper Pitkin--Imo Formation, 321 million years
|