Suborder:
|
Goniatitina
|
Superfamily:
|
Neoglyphioceratoidea
|
Family:
|
Neoglyphioceratidae
|
Genus:
|
Neoglyphioceras
|
Species:
|
utahensis* |
Qualifier:
|
ss |
Author:
|
Miller et al. 1952,p.154
|
Lower Boundary:
|
UUT Chainman Shale, upper part, 326.4 million years
|
Upper Boundary:
|
UUT Chainman Shale top, 324 million years
|