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TaxNo: 769Cyrtoclymenia crassa
Suborder: Clymeniina
Superfamily: Cyrtoclymenioidea
Family: Cyrtoclymeniidae
Genus: Cyrtoclymenia
Species: crassa
Qualifier: sh
Author: Petter 1960,p.43
Lower Boundary: P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years
Upper Boundary: UD4A--UD4B: dunkeri Zone base [15,55], 366.8 million years