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Class: Rotaliata    Subclass: Globigerinana    Order: Heterohelicida    Family: Heterohelicidae
Spiroplecta Ehrenberg, 1844

Spiroplecta americana
Ehrenberg, 1844
identified by scientist   
Cretaceous
Kurdistan

Spiroplecta americana
Ehrenberg, 1844
identified by scientist   
Cretaceous
Kurdistan

Spiroplecta clarae
(Ehrenberg, 1854)
identified by scientist   
Cretaceous
American South

Spiroplecta clarae
(Ehrenberg, 1854)
identified by scientist   
Cretaceous

Spiroplecta fusca
Earland, 1905
identified by scientist   
Quaternary
   

Spiroplecta ultimatamida
(White, 1929)
type specimen   holotype
Cretaceous
Mexico and Middle America

Spiroplecta ultimatamida
(White, 1929)
type specimen   holotype
Cretaceous
Mexico and Middle America