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TaxNo: 2133Bollandoceras submicronotum
Suborder: Goniatitina
Superfamily: Pericycloidea
Family: Maxigoniatitidae
Genus: Bollandoceras
Species: submicronotum
Qualifier: sy
Author: Bisat 1934,p.291
Valid: Bollandoceras micronotum (TAX2100)
Lower Boundary: Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
Upper Boundary: DER Go alpha 2--Go alpha 3 [11.60], 332.3 million years