Suborder:
|
Goniatitina
|
Superfamily:
|
Gonioloboceratoidea
|
Family:
|
Gonioloboceratidae
|
Genus:
|
Millerites |
Qualifier:
|
gy |
Author:
|
Cantú Chapa 1997,p.66
|
Valid:
|
Neocrimites Ruzhentsev [TAX5303 ] |
Lower Boundary:
|
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
Upper Boundary:
|
MXC La Colorada beds top, 258 million years
|