Paleontologic Technique for Defining Ancient Pole Positions
- 22 November 1963
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 142 (3595), 1057-1059
- https://doi.org/10.1126/science.142.3595.1057
Abstract
Taxonomnic diversity gradients appear to offer a quantitative paleontologic technique for obtaining ancient positions of the rotational pole of the earth. Statistical analysis of a model based on the taxonomic diversity of Recent planktonic foramninifera shows a close relationship to the latitudinal temperature gradient and, thus permits location of the pole. A similar analysis for Permian orthotetaceid brachiopods suggests a pole near the present position. A vailable data on diversity fit a present earth mizodel better than one based on Permian paleomagnetic results and thus suggest that it may be necesary to consider a model for the earth's magnetic field which does not require coincidence of the magnetic and rotational poles.This publication has 5 references indexed in Scilit:
- LATITUDINAL VARIATIONS IN ORGANIC DIVERSITYEvolution, 1960
- REVIEW OF PALEOMAGNETISMGSA Bulletin, 1960
- Possible Permian climatic zonation and its implicationsAmerican Journal of Science, 1957
- CENOZOIC MARINE CLIMATES OF THE PACIFIC COASTGSA Bulletin, 1950
- Tropical nature, and other essaysPublished by Biodiversity Heritage Library ,1878