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TaxNo: 6614Syngastrioceras websteri
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Glaphyritidae
Subfamily: Glaphyritinae
Genus: Syngastrioceras
Species: websteri
Qualifier: ss
Author: Titus 2000,p.42
Lower Boundary: DER E2a--E2b, 322.5 million years
Upper Boundary: GBY E2b3--E2c1 C.nititoides--N.stellar.), 321 million years