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

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 grain-supporte...

Full description

Bibliographic Details
Published in:Science
Main Authors: Sen Gupta, Barun K., Grant, A. C.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1971
Subjects:
Arctic
Foraminifera*
North Atlantic
Online Access:http://dx.doi.org/10.1126/science.173.4000.934
https://www.science.org/doi/pdf/10.1126/science.173.4000.934
Description
Summary: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 grain-supported limestone indicates a tropical neritic environment and precludes the influence of Arctic waters in the Flemish Cap region in Early or Middle Cretaceous times.

Similar Items