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Class:
Miliolata
Subclass:
Miliolana
Order:
Miliolida
Family:
Miliamminidae
Silicosigmoilina
Cushman & Church, 1929
Silicosigmoilina californica
Cushman and Church, 1927
identified by scientist
Neogene
Norwegian Sea
Silicosigmoilina perplexa
Israelsky, 1951
identified by scientist
Paleogene
Western Canada and USA