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TaxNo: 2573Phillipsoceras umbilicatum
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Reticuloceratidae
Subfamily: Reticuloceratinae
Genus: Phillipsoceras
Species: umbilicatum
Qualifier: ss
Author: Bisat & Hudson 1943,p.421
Lower Boundary: GBY H2c--R1(prereticul.--Ho.magistrorum), 317 million years
Upper Boundary: GBY R1a3--R1a4 (R.subretic.--todmorden.), 316.4 million years