Suborder:
|
Goniatitina
|
Superfamily:
|
Popanoceratoidea
|
Family:
|
Popanoceratidae
|
Genus:
|
Propopanoceras
|
Species:
|
boesei |
Qualifier:
|
ss |
Author:
|
Smith 1927,p.51
|
Lower Boundary:
|
RIT Somohole beds base, 299 million years
|
Upper Boundary:
|
RIT Somohole beds top, 294.6 million years
|