TaxNo: 235Michiganites marshallensis+
| Suborder: |
Prolecanitina
|
| Superfamily: |
Prolecanitoidea
|
| Family: |
Prolecanitidae
|
| Subfamily: |
Prolecanitinae
|
| Genus: |
Michiganites
|
| Species: | marshallensis+ |
| Qualifier: | ss |
| Author: |
Winchell 1862,p.362
|
| Lower Boundary: |
UMI Marshall Sdst.I base, 349 million years
|
| Upper Boundary: |
UMI Marshall Sdst.I top, 339 million years
|