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TaxNo: 1052Rectoclymenia gracilis
Suborder: Clymeniina
Superfamily: Cyrtoclymenioidea
Family: Rectoclymeniidae
Genus: Rectoclymenia
Species: gracilis
Qualifier: ss
Author: Nalivkina 1953,p.111
Lower Boundary: UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
Upper Boundary: P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years