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TaxNo: 3405Parashumardites sellardsi
Suborder: Goniatitina
Superfamily: Shumarditoidea
Family: Parashumarditidae
Genus: Parashumardites
Species: sellardsi
Qualifier: ss
Author: Plummer & Scott 1937,p.302
Lower Boundary: UTX middle Gaptank Fm. base, 306.5 million years
Upper Boundary: UTX upper-uppermost Gaptank, 300 million years