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TaxNo: 2090
Dyscheiloceras biesenbergense+
Taxonomy
Morphology
Suborder:
Tornoceratina
Superfamily:
Dimeroceratoidea
Family:
Cheiloceratidae
Genus:
Dyscheiloceras
Species:
biesenbergense+
Qualifier:
ss
Author:
Schmidt 1922,p.328
Lower Boundary:
UD2A--UD2B:(verneuili Zone base) [07,75], 374 million years
Upper Boundary:
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
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