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TaxNo: 4162Family Gonioclymeniidae
Suborder: Gonioclymeniina
Superfamily: Gonioclymenioidea
Family: Gonioclymeniidae
Qualifier: fa
Author: Hyatt 1884,p.314
Lower Boundary: UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
Upper Boundary: UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years