The latitude of a place at some time in the past, measured relative to the earth’s magnetic poles in the same period. Differences between this and the present latitude are caused by continental drift and movement of the earth’s magnetic poles.
- However, and very importantly, the distance from a palaeomagnetic pole and the sampled area of the continent, as reflected by palaeomagnetic inclination, provides a direct estimate of the palaeolatitude of the continent.
- Thus the sedimentological data indicating palaeolatitudes confirm the palaeomagnetic conclusions, in particular in the positioning of the South Pole under the Antarctic part of Gondwana.
- Of the lower plants, lycopods and horse-tails are rare whilst liverworts are abundant, particularly when compared to Cretaceous floras from lower palaeolatitudes.
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