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TaxNo: 2067Probeloceras? tetragonum
Suborder: Anarcestina
Superfamily: Beloceratoidea
Family: Beloceratidae
Genus: Probeloceras?
Species: tetragonum
Qualifier: ss
Author: Roemer 1850,p.39
Lower Boundary: DER do one beta--do one gamma, 377.5 million years
Upper Boundary: UD1K--UD1L:varicos.--C.holzapfeli [05,35, 375.1 million years