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Class:
Rotaliata
Subclass:
Globigerinana
Order:
Heterohelicida
Family:
Heterohelicidae
Spiroplecta
ultimatamida
(White, 1929)
type specimen
holotype
Cretaceous
Upper Cretaceous
Mexico and Middle America
unknown
FEU-1007618
type specimen
holotype
Cretaceous
Upper Cretaceous
Mexico and Middle America
unknown
FEU-1007619
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