Suborder:
|
Goniatitina
|
Superfamily:
|
Dimorphoceratoidea
|
Family:
|
Girtyoceratidae
|
Subfamily:
|
Girtyoceratinae
|
Genus:
|
Eumorphoceras
|
Species:
|
girtyi |
Qualifier:
|
ss |
Author:
|
Elias 1956,p.130
|
Lower Boundary:
|
UNV White Pine Shale base, 326.4 million years
|
Upper Boundary:
|
UNV White Pine Shale top, 324 million years
|