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TaxNo: 4090Genus Pachyclymenia
Suborder: Clymeniina
Superfamily: Biloclymenioidea
Family: Pachyclymeniidae
Genus: Pachyclymenia
Qualifier: ge
Author: Schindewolf 1937,p.50
Lower Boundary: UD4B--UD4C: serpentina Zone base [16,45], 366.4 million years
Upper Boundary: UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years