Suborder:
|
Prolecanitina
|
Superfamily:
|
Prolecanitoidea
|
Family:
|
Prolecanitidae
|
Subfamily:
|
Protocanitinae
|
Genus:
|
Merocanites
|
Species:
|
drostei |
Qualifier:
|
ss |
Author:
|
Collinson 1955,p.434
|
Lower Boundary:
|
Pericyclus--Fasciperic./Ammonellips.BZ, 348.5 million years
|
Upper Boundary:
|
Fascip./Ammon.--Bollandoc./Bollandit. BZ, 345.3 million years
|