Suborder:
|
Goniatitina
|
Superfamily:
|
Neoglyphioceratoidea
|
Family:
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Cravenoceratidae
|
Subfamily:
|
Cravenoceratinae
|
Genus:
|
Cravenoceratoides
|
Species:
|
edalensis |
Qualifier:
|
ss |
Author:
|
Bisat 1928,p.
|
Lower Boundary:
|
GBY E2a3--E2b1(Eu.yatesae--Cr.edalensis), 322.5 million years
|
Upper Boundary:
|
GBY E2b1--E2b2 (Cr.edalensis--holmesi), 322 million years
|