Tertiary climatic fluctuations and methods of analysis of tertiary floras

Palaeogeography, Palaeoclimatology, Palaeoecology
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Abstract

On theoretical grounds, an analysis of the physiognomy of a Tertiary leaf assemblage is more direct and reliable than a circuitous floristic analysis in assigning thermal regimes to fossil assemblages. Using primarily foliar physiognomy and secondarily floristic composition, it can be shown that: (1) some middle latitude Tertiary assemblages probably lived under meteoroligically tropical climates; (2) a major and rapid climatic deterioration occurred in the Oligocene; and (3) a major climatic fluctuation probably occurred in the Late Eocene. These analyses thus substantiate the conclusions of several other paleobotanists regarding climatic fluctuations. Recent criticisms of these analyses are shown to be invalid and to be based largely on misinterpretations. ?? 1971.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Tertiary climatic fluctuations and methods of analysis of tertiary floras
Series title Palaeogeography, Palaeoclimatology, Palaeoecology
DOI 10.1016/0031-0182(71)90016-2
Volume 9
Issue 1
Year Published 1971
Language English
Publisher Elsevier
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Palaeogeography, Palaeoclimatology, Palaeoecology
First page 27
Last page 57