Suborder:
|
Goniatitina
|
Superfamily:
|
Dimorphoceratoidea
|
Family:
|
Dimorphoceratidae
|
Subfamily:
|
Glyphiolobinae
|
Genus:
|
Metadimorphoceras
|
Species:
|
saundersi |
Qualifier:
|
ss |
Author:
|
Manger & Quinn 1972,p.311
|
Lower Boundary:
|
UAR Upper Pitkin--Imo Formation, 321 million years
|
Upper Boundary:
|
UAR Imo Formation top, 318.1 million years
|