Suborder:
|
Prolecanitina
|
Superfamily:
|
Medlicottioidea
|
Family:
|
Medlicottiidae
|
Subfamily:
|
Propinacoceratinae
|
Genus:
|
Akmilleria
|
Species:
|
transitoria+ |
Qualifier:
|
ss |
Author:
|
Haniel 1915,p.39
|
Lower Boundary:
|
RIT Atsabe beds base, 284.4 million years
|
Upper Boundary:
|
RIT Bitauni beds top, 270.6 million years
|