Transactions Of The New Zealand Institute.

Art. 1.—Palaeozoic and Mesozoic Seas in Australasia. By W. N. Benson, D.Sc., B.A., F.G.S., F.R.G.S., Professor of Geology, University of Otago. [Read before the Otago Institute, 8th November, 1921, received by Editor, 20th December, 1921; issued separately, 1st February, 1923.] Contents. Page The Stratigraphic and Structural Relationships of Australia and New Zealand: an Historical Sketch 1 The Tectonic Relationships of Australasia and Antarctica 10 The Possibility of Detailed Stratigraphical Correlation of Australasian Geological Formations 13 The Geological History of Australasia 15 Cambrian 16 Ordovician 19 Silurian 22 Devonian 25 Carboniferous 29 “Permo-Carboniferous” or Permian 31 Triassic 37 Jurassic 40 Late Jurassic, Lower and Middle Cretaceous 45 Upper Cretaceous 50 Post-Cretaceous 52 Acknowledgments 54 Addendum 54 List of References cited 54 The Stratigraphic and Structural Relationships of Australia and New Zealand: an Historical Sketch. More than forty years ago Hector (1879) delivered in Sydney an address on the “Geological Formations of New Zealand compared with those of Australia,” which was used by Suess (1888) in his comparison of the relation of the eastern part of South America to the Andean zone on the one side of the Pacific with that of western Australia to eastern Australia and New Zealand on the other. The former unity of these two last regions had already been indicated in Neumayr's: (1883) chart of the