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Permian ammonoids from Eastern Australia |
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| Authors: | W A Robertson |
| Institution: | Bureau of Mineral Resources , Childers Street, Turner, Canberra, A.C.T. |
| Abstract: | Umbrella‐shaped objects, presumably fossils, were collected from the Lower Proterozoic Noltenius Formation at two localities about 80 miles south of Darwin. Radial and concentric forms are described morphologically, and their probable mode of origin is discussed. |
| Keywords: | hydrothermal palaeomagnetism sinter uranium ore |