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TaxNo: 1445Darkaoceras meridionalis
Suborder: Anarcestina
Superfamily: Triainoceratoidea
Family: Taouizitidae
Genus: Darkaoceras
Species: meridionalis
Qualifier: ss
Author: Petter 1959,p.160
Lower Boundary: mid.--up.varcus Zone [17,00], 389 million years
Upper Boundary: Givetian--Frasnian [GIV--FRS], 385.3 million years