Suborder:
|
Prolecanitina
|
Superfamily:
|
Prolecanitoidea
|
Family:
|
Prolecanitidae
|
Subfamily:
|
Prolecanitinae
|
Genus:
|
Michiganites |
Qualifier:
|
ge |
Author:
|
Ruzhencev 1962, p.348
|
Lower Boundary:
|
IRL Lower Limestone base, 350 million years
|
Upper Boundary:
|
UMI Marshall Sdst.I top, 339 million years
|