TaxNo: 2661Eumorphoceras richardsoni
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Eumorphoceras
|
| Species: | richardsoni |
| Qualifier: | ss |
| Author: |
McCaleb et al. 1964,p.2
|
| Lower Boundary: |
UAR Upper Pitkin--Imo Formation, 321 million years
|
| Upper Boundary: |
UAR Imo Formation top, 318.1 million years
|