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TaxNo: 5937Rectimitoceras alternum
Suborder: Tornoceratina
Superfamily: Prionoceratoidea
Family: Prionoceratidae
Subfamily: Prionoceratinae
Genus: Rectimitoceras
Species: alternum
Qualifier: sy
Author: Korn 1994,p.16
Valid: Rectimitoceras alternatum Korn,1992,p.31
Lower Boundary: UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
Upper Boundary: UD6B--UD6C1 Kamptoclym. endogona base, 362.4 million years