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TaxNo: 1115Ponticeras keyserlingi
Suborder: Anarcestina
Superfamily: Beloceratoidea
Family: Acanthoclymeniidae
Genus: Ponticeras
Species: keyserlingi
Qualifier: ss
Author: Holzapfel 1899,p.38
Lower Boundary: UD1C--UD1D:T.kayserlingi--Sandb.syngonum, 382.7 million years
Upper Boundary: UD1D--UD1E:S.syngon.--P.lutheri [02,00], 381.6 million years