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Class:
Rotaliata
Subclass:
Rotaliana
Order:
Chilostomellida
Family:
Alabaminidae
Oridorsalis
Andersen, 1961
Oridorsalis plummerae
(Cushman, 1948)
identified by scientist
Paleogene
North Africa
Oridorsalis tenerus
(Brady, 1884)
identified by M. Hesemann
Quaternary
Greenland Sea
Oridorsalis westi
Andersen, 1961
identified by scientist
Quaternary
off Brazil