Abstract
Evidence from leaf-margin analysis and vegetational physiognomy indicates that a mid-Cretaceous flora from the South Island of New Zealand grew at a mean annual temperature of 10 degrees C. This compares with an identical estimate derived from a coeval flora in northern Alaska. Both floras grew at about the same latitude and in coastal plain settings. This study provides the first direct comparison of non-marine near-polar climates in the pre-Tertiary record.
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