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TaxNo: 6748Pericyclus mercatorius
Suborder: Goniatitina
Superfamily: Pericycloidea
Family: Pericyclidae
Subfamily: Pericyclinae
Genus: Pericyclus
Species: mercatorius
Qualifier: ss
Author: Korn et al. 2003,p.85
Lower Boundary: mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
Upper Boundary: DET Zadelsdorf top, 349 million years