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TaxNo: 27Paragattendorfia sphaeroides
Suborder: Tornoceratina
Superfamily: Prionoceratoidea
Family: Prionoceratidae
Subfamily: Prionoceratinae
Genus: Paragattendorfia
Species: sphaeroides
Qualifier: ss
Author: Weyer 1972,p.340
Lower Boundary: DER Acutimit.acutum--Paproth.dorsoplanus, 358.8 million years
Upper Boundary: low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years