III. Some fossil plants of early Devonian type from the Walhalla series, Victoria, Australia

Abstract

In 1927 we gave a brief account (Lang and Cookson, 1927) of the plant-remains that had been found in rocks regarded by the Geological Survey of Victoria as of Upper Silurian age. That account was based on specimens in the Collections of the National Museum, Melbourne, and of the Geological Survey of Victoria, which were sent to Manchester for examination. With the exception of some from Waratah Bay and Rhyll (Cookson, 1926), the specimens came from a number of localities along the Walhalla geo-syncline in Eastern Victoria. The rocks from which they were derived are distinguished in the local succession (Baragwanath, 1925 ; Herman, 1901 ; Whitelaw, 1916) as the Jordan River Beds below and the Walhalla Beds above ; the Yeringian conglomerate is at the base of the Walhalla Series. Both the Jordan River Series and the Walhalla Series are referred to the Yeringian (Upper Silurian). The stratigraphical sequence of the rocks as determined by the Geological Survey has been recently confirmed by a re-examination of the Walhalla-Wood’s Point region by Prof. E. D. Skeats (1928), who was accompanied on his visit to a number of localities by Mr. F. Chapman and Mr. Baragwanath. The alternative view of the succession, advanced on palseontological grounds by Mr. Chapman (1926) and referred to in our previous paper, may therefore be left out of consideration here, and his term Tanjilian will not be employed.