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Sigmoilina sigmoidea var. compressa Cushman, 1946
From the collection of NMNH Paleobiology, Smithsonian. Free to download, adapt and use — no permission needed.
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Cenozoic / Paleogene / Oligocene
NMNH Paleobiology, Smithsonian’s own descriptionCredit lineSigmoilina sigmoidea var. compressa Cushman, 1946. NMNH Paleobiology, Smithsonian. CC0.