Abstract
Based on the temporal distribution, abundance, and taxonomic composition of wood floras, four phases of vegetation
development are recognized through the Cretaceous to Early Tertiary of the Antarctic Peninsula: (1) Aptian to Albian
communities dominated by podocarpaceous, araucarian, and minor taxodiaceous/cupressaceous conifers with rare extinct
gymnosperms (Sahnioxylon). (2) Progressive replacement of these communities
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