Volume 15 1973

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    Palaeontologia africana Volume 15 Part 2
    (Bernard Price Institute for Palaeontological Research, 1973)
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    Palaeontologia africana Volume 15 Part 1
    (Bernard Price Institute for Palaeontological Research, 1973)
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    NEW PALAEOZOIC FISH REMAINS FROM SOUTHERN AFRICA
    (BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 1973) Gardiner, B. G.
    The fossil fish record of southern Africa is both sparse and spotty and the only group with a relatively complete record is the Actinopterygii; indeed several of the major fish groups have not so far been described from the African Continent. The Palaeozoic rocks of southern Africa have yielded an even more restricted fish fauna (Gardiner 1962; 1969). However, an accumulation of new, but fragmentary, material from several localities has shown the undoubted presence of two groups, coelacanths and acanthodians, hitherto unrecorded from the Palaeozoic strata of southern Africa.
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    A NEW DICTYOPYGID FROM THE CAVE SANDSTONE OF LESOTHO, SOUTHERN AFRICA
    (BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 1973) Forey, P.; Gardiner, B. G.
    The Lower Triassic of South Africa has yielded an array of early dictyopygids (Brough, 1931, 1936) yet none of those advanced dictyopygids so characteristic of the Upper Triassic of North America (Schaeffer, 1967) has so far been recorded from the African continent. The geographical distribution of the dictyopygids appears to be a discontinuous one with the Lower Triassic forms coming mainly from South Africa, the Middle Triassic ones from Australia and the Upper Triassic forms from North America. It is thus surprising to find a seemingly advanced dictyopygid in the rather unfossiliferous Cave Sandstone of Lesotho.
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    HIGH INHERITANCE ELONGATE STROMATOLITIC MOUNDS FROM THE TRANSVAAL DOLOMITE
    (BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 1973) Eriksson, K. A.; Truswell, J. F.
    Elongate mound·like structures up to 10 metres across and 40 metres in length are described. Characteristic features of the mounds are their high inheritance and considerable relief which, along with the absence of sub-aerial exposure features, the fine-grained nature of the carbonate, and their vertical persistence, are taken to suggest a subtidal origin. Marine currents are considered adequate to account for their elongation.