TaxNo: 1852Maeneceras polonicum
| Suborder: |
Tornoceratina
|
| Superfamily: |
Praeglyphioceratoidea
|
| Family: |
Sporadoceratidae
|
| Genus: |
Maeneceras
|
| Species: | polonicum |
| Qualifier: | sy |
| Author: |
Sobolev 1914,p.39
|
| Valid: | Maeneceras rotundum (Wedekind 1908) |
| Lower Boundary: |
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
|
| Upper Boundary: |
P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years
|