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TaxNo: 6569Linguatornoceras yudinae
Suborder: Tornoceratina
Superfamily: Tornoceratoidea
Family: Tornoceratidae
Subfamily: Tornoceratinae
Genus: Linguatornoceras
Species: yudinae
Qualifier: ss
Author: Becker 2000,p.85
Lower Boundary: UD1H--UD1I:tenuistr.--P.tripart. [03,50], 378.1 million years
Upper Boundary: UD1I--UD1J:tripart.--N.paradoxum [04,20], 377.5 million years