On some Rugose Corals from the Burindi Series (Lower Carboniferous) of New South Wales; together with a Short Account of the Upper Palæozoic Rocks of the Area in which they were collected

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Abstract
Homœmorphy, regarding both external form and internal structures, is exceedingly common among Rugose Corals. Analogous features may occur in unrelated genera living contemporaneously in the same region or may be found reappearing in corals of different stocks in widely separated regions and epochs. This paper describes two gener— Amygdaloptzyllum Dun & Benson, and Cionodendron , gen. nov., from the Burindi Series (Lower Carboniferous) of New South Wales; it also includes a few remarks concerning the species of Lithostrotion collected from the same series (and from the equivalent horizon in Queensland). Amygdalophyllum and Cionodendron are related respectively to the Carboniferous species of ‘Cyathophyllum’ (Palæosmilia) Edwards & Haime, and Lithostrotion ; but both corals are characterized by an unusually large columella, as in Cyathaxonia. Amygdalophyllum and Cionodendron illustrate a remarkable case of parallelism. The Australian species of Lithostrotion show certain small peculiarities of structure which distinguish them as a group from their British congeners. The described material, much of which has been collected by one of us (W. N. B.), is the property of the Geological Surveys of New South Wales and Queensland, and of the Australian Museum (Sydney), and our thanks to these Institutions for the loan of the small collection is cordially tendered. Before the corals are discussed, a short account is given of the stratigraphical succession of the region in which they were found, ‘and our reasons are stated for correlating the Burindi Series with the Viséan of Europe. The fossils herein described come from the parishes of Moorowarra and Babbinboon, near Somerton, 20

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