Suborder:
|
Prolecanitina
|
Superfamily:
|
Prolecanitoidea
|
Family:
|
Prolecanitidae
|
Subfamily:
|
Protocanitinae
|
Genus:
|
Merocanites
|
Species:
|
planorbis |
Qualifier:
|
ss |
Author:
|
Delépine 1941,p.44
|
Lower Boundary:
|
MAR Erfoud niveau a base, 349 million years
|
Upper Boundary:
|
MAR Erfoud niveau a-niveau b, 345.3 million years
|