Orbitolina, a Cretaceous Larger Foraminifer, from Flemish Cap: Paleoceanographic Implications

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Science  03 Sep 1971:
Vol. 173, Issue 4000, pp. 934-936
DOI: 10.1126/science.173.4000.934


The Tethyan larger foraminiferal genus Orbitolina has been found in the easternmost part of the western North Atlantic continental shelf at 46°30'N. All other known occurrences of the genus in North America are south of 33°N. The species is Orbitolina conoidea Gras; its abundance in a grainsupported limestone indicates a tropical neritic environment and precludes the influence of Arctic waters in the Flemish Cap region in Early or Middle Cretaceous times.