Download or read book Stromatoporoids from the Silurian of Gotland written by Kei Mori and published by . This book was released on 1970 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stromatoporoids from the Silurian of Gotland and Scania written by Kei Mori and published by . This book was released on 1970 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silurian Reefs of Gotland written by and published by Elsevier. This book was released on 1971-01-01 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Swedish island of Gotland, in the Baltic, has attracted much attention of many geologists. Gotland is built up by a Middle Palaeozoic table-land, with an average height of 20-30 m, but with some higher hills in the inland and with steep cliffs along part of the coast. The Middle Palaeozoic strata consist primarily of limestones and marlstones. For a good understanding of the sedimentary succession of Gotland, it is important that the distribution of all the different kinds of sediments should be carefully mapped, and their faunal contents to be intensively studied. This book includes the survey and ideas gathered along with important data about the stratigraphy and reefs of Gotland. It presents description of the Baltic area, development of the stratigraphical subdivision of the Middle Palaeozoic of Gotland, and some tectonic and pseudo-tectonic phenomena. Stratified and unstratified sediments are presented along with a number of palaeoecological observations on Gotlandian fossils. Some comparisons of the reefs of Gotland with reefs in a few other areas are also examined.
Download or read book Species Morphologies and Environmental Relationships of the Ludlovian Upper Silurian Stromatoporoids on Gotland Sweden written by Akihiro Kano and published by . This book was released on 1990 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Papers written by Kei Mori and published by . This book was released on 19?? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Silurian Llandovery Telychian Sponge Assemblage from Gotland Sweden written by Freek Rhebergen and published by John Wiley & Sons. This book was released on 2014-02-27 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: A newly discovered, diverse sponge fauna of early Silurian age, is described from Gotland, Sweden. This is the first Silurian sponge assemblage known from Baltica, and the only diverse Llandoverian assemblage known worldwide. The fauna includes 20 genera and 29 species, of which three genera and six species are new. Eighteen species are new to Baltica. The fauna shows strong similarities to later Silurian assemblages in Arctic Canada, but one endemic species comprises ca. 50% of the fauna. The fauna shows that lithistid sponges recovered well from the late Ordovician extinction in some areas, and became widely spread in the early Silurian. In contrast, non-lithistid sponges like, such as hexactinellids, appear to have evolved rapidly during the Late Ordovician – early Silurian interval, and some modern groups probably originated in inshore habitats.
Download or read book List of the Fossils of the Upper Silurian Formation of Gotland written by Gustaf Lindström and published by . This book was released on 1885 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silurian Stromatoporoids of America written by William Arthur Parks and published by . This book was released on 1909 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Ordovician and Early Silurian Stromatoporoid Sponges from Anticosti Island Eastern Canada written by Heldur Nestor and published by NRC Research Press. This book was released on 2010 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silurian late Llandovery Ludlow Atrypid Brachiopods from Gotland Sweden and the Welsh Borderlands Great Britain written by Paul Copper and published by NRC Research Press. This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The morphology, evolution, and paleoecology of the highly successful Silurian atrypide spire-bearers is described in detail, including the documentation of several new species. Numerous detailed illustrations and plates accompany the text.
Download or read book Silurian Chitinozoa from Gotland written by Sven Laufeld and published by . This book was released on 1974 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deposition Palaeoecology and Diagenesis of the Silurian Reef like Limestones on Gotland written by Akihiro Kano and published by . This book was released on 1990 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book British Silurian Stromatoporoids written by Stephen Kershaw and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: British Silurian stromatoporoids occur in carbonate rocks, mostly in the Wenlock Series, together with a small number in the Llandovery Series and very few in the Ludlow Series. Using field and museum material (408 samples) and literature, this study identifies 15 stromatoporoid genera, doubling the previously known generic diversity, so the British Isles holds the third highest genera-diversity Wenlock assemblage after Gotland/Estonia (23 genera) and the Siberian Platform (20 genera). Remarkably, nearly all samples come from the small (100 × 100 km) Much Wenlock Limestone Formation (MWLF) (Homerian Stage, uppermost Wenlock Series) in the Midland Platform of central England (Avalonia), surrounded, underlain, and overlain by siliciclastics. On the Midland Platform one sample is Llandovery age; 11 samples are Ludlow age (Aymestry Limestone). Other samples from the Isle of Man (Wenlock age, six samples) and south-west Scotland (Llandovery age, three samples) are in transported material, with associated corals and they indicate unpreserved carbonate platforms in northern Britain. A few Llandovery Series stromatoporoids are also reported from Ireland, both north and south of the Iapetus Suture; published reports of Wenlock stromatoporoids from Ireland are shown to be misidentified trace fossils. In the MWLF stromatoporoids (together with the more abundant rugose corals, tabulates, heliolitids, and some microbial carbonates) occur in small patch reefs and in bedded bioclastic grainstones, packstones, and nodular wackestones; stromatoporoids are more common in and near patch reefs. The MWLF stromatoporoid fauna has 15 confirmed low-level taxa: Labechia conferta (Lc), Lophiostroma schmidti (Ls), Ecclimadictyon macrotuberculatum (Em) and E. astrolaxum (Ea), Petridiostroma simplex (Ps) and P. linnarssoni (Pl), Actinostromella vaiverensis (Av), Araneosustroma fistulosum (Af), Densastroma pexisum (Dp), Plectostroma intertextum (Pi), Simplexodictyon yavorskyi (Sy), Eostromatopora impexa (Ei), 'Stromatopora' venukovi ('S'v), Syringostromella borealis (Sb) and Parallelostroma typicum (Pt). No new taxa were found. The five most abundant taxa (Lc, Av, Dp, Px, and Sb) total 230 specimens, 64.2% of the MWLF assemblage, consistent with taxa proportions in other Palaeozoic stromatoporoid assemblages. The stromatoporoids have limited growth forms: Lc grew laminar frames, mostly in patch reefs; the other taxa range from laminar to high domical, maximum sizes around 40 cm basal diameter. They almost completely lack the complexities and diversities of form of their contemporaries in nearby large carbonate platforms of Baltica (Gotland/Estonia) and Laurentia (eastern USA and Canada); only two samples contain intergrown corals. Overall, British Silurian stromatoporoids may be viewed as a relatively limited shallow marine assemblage that took advantage of suitable conditions in a short time-and-space window in an episode of raised sea level with low siliciclastic input. The MWLF has the largest assemblage in the Avalonia microcontinent at the end of the Wenlock Epoch. Palaeogeographically, the Avalonia assemblage of stromatoporoids lay in an important location between Laurentia, Baltica and other Silurian continents and may have aided distribution pathways of stromatoporoids that presumably had planktonic forms for migration. Stromatoporoids were likely not affected by the mid-Silurian extinction event, but data are insufficient to be certain.
Download or read book The Encyclopedia of Paleontology written by Rhodes W. Fairbridge and published by Springer. This book was released on 1979 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scholarly work with lengthy entries followed by references for further reading. Many illustrations. Indexed.
Download or read book List of the Fossils of the Upper Silurian Formation of Gotland written by G Lindström and published by Sagwan Press. This book was released on 2015-08-25 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Silurian Vertebrates of Gotland Sweden written by Doris Fredholm and published by . This book was released on 1989 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silurian Stromatoporoids of America written by W A 1868-1936 Parks and published by Franklin Classics Trade Press. This book was released on 2018-11-08 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
