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TaxNo: 4644Neoglyphioceras planum
Suborder: Goniatitina
Superfamily: Neoglyphioceratoidea
Family: Neoglyphioceratidae
Genus: Neoglyphioceras
Species: planum
Qualifier: sy
Author: Frech 1902,pl.46a
Valid: Neoglyphioceras spirale (Phillips 1836)
Lower Boundary: DER Go beta gracilis Z.--spirale Z. [13., 328.8 million years
Upper Boundary: DER Go beta--gamma, granos.base [P1--P2], 328.2 million years