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TaxNo: 3401Pseudaktubites stainbrooki+
Suborder: Goniatitina
Superfamily: Shumarditoidea
Family: Shumarditidae
Genus: Pseudaktubites
Species: stainbrooki+
Qualifier: ss
Author: Plummer & Scott 1937,p.292
Lower Boundary: Pseudaktubites Z.,Virgilian base, 305 million years
Upper Boundary: UTX Caddo Creek Fm.--Graham Fm., 304.3 million years