Suborder:
|
Prolecanitina
|
Superfamily:
|
Medlicottioidea
|
Family:
|
Medlicottiidae
|
Subfamily:
|
Propinacoceratinae
|
Genus:
|
Akmilleria
|
Species:
|
electraensis |
Qualifier:
|
ss |
Author:
|
Plummer & Scott 1937,p.95
|
Lower Boundary:
|
UTX Clyde Fm. base, 290 million years
|
Upper Boundary:
|
UTX Clyde Fm. top, 284.4 million years
|