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The Quarterly Journal of the Geological Society of London
The Quarterly Journal of the Geological Society of London Author:Geological Society of London General Books publication date: 2009 Original publication date: 1848 Original Publisher: The Society Description: Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) Subjects: Geology Science / Earth Sciences / General Science / Earth Sciences / Geology Notes: This is a black and white OCR reprint o... more »f the original. It has no illustrations and there may be typos or missing text. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. Excerpt: In his paper on the so-called nummulite limestone of Alabama, Mr. Lyell cites the opinion of Professor E. Forbes and Mr. Lonsdale that the supposed nummulites were in reality zoophytes, referable to the genus Orbitolites. Professor Forbes observes that the Orbitolites complanata of the Paris tertiary series is very nearly allied to the American fossil (Nummulites Mantelli), and that the Orbitolites elliptica of Michelin (from Nice) and that author's Orbitolites Prattii are nearly-allied species. He refers also to disciform bodies discovered by Mr. Beete Jukes in Australia, in great numbers upon marine plants resembling Zostera, and when dead in great abundance in mud from various depths under seventeen fathoms, considering them as belonging to the same generic group with the tertiary Orbitolites. Mr. Lyell also quotes the opinion of M. d'Or- bigny that the American specimens sent to him are referable to his genus Orbitoides, one nearly allied to Orbitolina. In consequence of these determinations Mr. Lyell concludes that the fossil in question will henceforth be known as Orbitoides Mantelli, retaining the specific name first given to it by Dr. Morton. As Orbitolites have been frequently taken for nummulites, the strict determination of them is important geologically. Our colleague Professor Owen has presented us with an account of the fossil remains of mammalia referable to the genus...« less