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TaxNo: 4002Subgenus Type_B
Suborder: Goniatitina
Superfamily: Pericycloidea
Family: Pericyclidae
Subfamily: Ammonellipsitinae
Genus: Ammonellipsites
Subgenus: Type_B
Qualifier: gx
Author: Girty 1909,p.67
Lower Boundary: Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
Upper Boundary: Arnsbergian--Chokierian [ARN--CHO], 319 million years