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TaxNo: 1878Tornoceras sublentiforme
Suborder: Tornoceratina
Superfamily: Tornoceratoidea
Family: Tornoceratidae
Subfamily: Tornoceratinae
Genus: Tornoceras
Species: sublentiforme
Qualifier: ss
Author: Sobolev 1914,p.56
Lower Boundary: UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
Upper Boundary: P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years