Abstract
The author has found a series of silicified wood fragments included in lower Miocene formations in the fossil forest of Zuri-Soddì in central west Sardinia. Anatomical study assigns them to Arganioxylon sardum n. gen., n. sp. and Sclerocaryoxylon chiarugii n. gen., n. sp., very similar respectively to the present-day species Argania sideroxylon from the southwest of Morocco and Sclerocarya birroea (syn. Poupartia birroea) from tropical Africa. Both species are from open forests similar to wooded savanna. Taking into consideration the other species which are known in the same bed, it is suggested that the vegetation grew in a climate similar to that which now characterizes open forest and wooded savanna and where the vegetation is strongly conditioned by well-defined dry seasons.
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