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The Triassic world-wide: Zimbabwe |
| Zimbabwe is part of the African Craton and during most parts of the earth history it was subject to aerial exposure and subsequent erosion. Remains of triassic sediments can therefore only be found in small regions in the E of Zimbabwe. During the Triassic, the proterozoic crystalline basement was source for clastic sediments - mainly conglomerates and sandstones - that were deposited in small basins. Apart from some remains of land reptiles, large occurences of petrified wood show that there were once large forests of coniferous trees. | |
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Conifer
Dadoxylon sp. Upper Triassic, Gowke (Zimbabwe) |
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Detail of the above picture
The wood clearly shows annual growth rings. A seasonally accentuated climate is characteristic for the higher latitudes of south Gondwana and led to the development of an own floral province, the "southern flora" |
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| Maßstab, soweit nicht anders angegeben: 1 cm | |