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TaxNo: 140Paralytoceras serratum cf.*
Suborder: Tornoceratina
Superfamily: Prionoceratoidea
Family: Pseudarietitidae
Subfamily: Pseudarietitinae
Genus: Paralytoceras
Species: serratum cf.*
Qualifier: cf
Author: Sheng 1989,p.117
Lower Boundary: DER Ps. westfalicus--Paragattend. patens, 358 million years
Upper Boundary: low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years