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Science 16 September 1983:
Vol. 221. no. 4616, pp. 1153 - 1156
DOI: 10.1126/science.221.4616.1153
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Articles

Arctic Terrestrial Biota: Paleomagnetic Evidence of Age Disparity with Mid-Northern Latitudes During the Late Cretaceous and Early Tertiary

Leo J. Hickey 1, Robert M. West 2, Mary R. Dawson 3, and Duck K. Choi 4

1 Director of the Peabody Museum of Natural History and a professor in the Department of Geology and Geophysics and in the Department of Biology, Yale University, New Haven, Connecticut 06520.
2 Director of the Carnegie Museum of Natural History, Pittsburg, Pennsylvania 15213.
3 Curator of the Section of Vertebrate Fossils, Carnegie Museum of Natural History, Pittsburg, Pennsylvania 15213.
4 Palynological Laboratories, College of Earth and Mineral Sciences,Pennsylvania State University, University Park 16802.

Magnetostratigraphic correlation of the Eureka Sound Formation in the Canadian high Arctic reveals profound difference between the time of appearance of fossil land plants and vertebrates in the Arctic and in mid-northern latitudes. Latest Cretaceous plant fossils in the Arctic predate mid-latitude occurrences by as much as 18 million years, while typical Eocene vertebrate fossils appear some 2 to 4 million years early.

Submitted on March 25, 1983
Revised on June 24, 1983


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