Suborder:
|
Prolecanitina
|
Superfamily:
|
Medlicottioidea
|
Family:
|
Medlicottiidae
|
Subfamily:
|
Propinacoceratinae
|
Genus:
|
Akmilleria
|
Species:
|
adkinsi |
Qualifier:
|
ss |
Author:
|
Plummer & Scott 1937,p.93
|
Lower Boundary:
|
UTX Indian Creek Shale base, 294.6 million years
|
Upper Boundary:
|
UTX Indian Creek Shale top, 292 million years
|