Home
Help
Print...
TaxNo: 441Polaricyclus polaris+
Suborder: Goniatitina
Superfamily: Pericycloidea
Family: Pericyclidae
Subfamily: Pericyclinae
Genus: Polaricyclus
Species: polaris+
Qualifier: ss
Author: Gordon 1957,p.33
Lower Boundary: UAK Lisburne group base, 349 million years
Upper Boundary: UAK Lisburne group top, 340 million years