Abstract

Quantitative estimates of terrestrial paleotemperatures near the North Pole were derived from the physiognomy of the vegetation, including leaf-margin analysis, from rocks of latest Albian and Late Cretaceous age of the North Slope of Alaska. During the latest Albian and Cenomanian, mean annual temperature was approximately 10 ±3 °C. During the Coniacian, mean annual temperature may have been 2-3 °C warmer than during the Albian-Cenomanian but no higher than 13 °C. During the Campanian and Maastrichtian, mean annual temperature would have been about 2-8 °C. Although the ranges for the individual estimates overlap, differences among the floras indicate that the relative changes in mean annual temperature did occur.

First Page Preview

First page PDF preview
You do not currently have access to this article.