Suborder:
|
Tornoceratina
|
Superfamily:
|
Pseudohaloritoidea
|
Family:
|
Pseudohaloritidae
|
Subfamily:
|
Shouchangoceratinae
|
Genus:
|
Neoaganides
|
Species:
|
grahamensis+ |
Qualifier:
|
ss |
Author:
|
Plummer & Scott 1937,p.350
|
Lower Boundary:
|
UTX Graford Fm.--Brad Fm., 305.3 million years
|
Upper Boundary:
|
UTX Graham Fm. top, 301 million years
|