Download or read book Silicified Middle Ordovician Trilobites from the South Nahanni River Area District of Mackenzie Canada written by B. D. E.. Chatterton and published by . This book was released on 1976 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Middle Ordovician Trilobites South Nahanni River Area District of Mackenzie written by Rolf Ludvigsen and published by 1975.. This book was released on 1975 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Trilobite Zonation of Middle Ordovician Rocks Southwestern District of Mackenzie written by Rolf Ludvigsen and published by Ottawa, Canada : Energy, Mines and Resources Canada. This book was released on 1979 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Middle Ordovician Whiterockian Chazyan Trilobites from the Sunblood Formation District of Mackenzie written by James V. Tremblay and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Middle Ordovician Sunblood Formation in the South Nahanni River area, District of Mackenzie, comprises mainly limestones and dolostones of intertidal and shallow subtidal origin as indicated by the presence of desiccation polygons, fenestral fabric, and oncolites. The study of well preserved, silicified trilobites from low diversity, Bathyurus-dominated, Nearshore Biofacies faunas of Whiterockian and Chazyan age collected in six stratigraphic sections through the Sunblood Formation permits the recognition of three new Whiterockian zones, and two previously established Chazyan zones. The Bathyurus mackenziensis, Bathyurus sunbloodensis, and Bathyurus margareti zones (Whiterockian), together with the Bathyurus nevadensis and Bathyurus granu/osus zones (Chazyan) represent the Nearshore Biofacies components of a dual biostratigraphic scheme that considers both temporal and spatial distribution patterns, and are compositionally distinct from faunas in correlative strata around North America that represent other biofacies. Twenty-six species belonging to eighteen genera are described and illustrated. Ludvigsenella ellipsepyga is established as a new bathyurine genus, in addition to four new species of Bathyurus : Bathyurus mackenziensis, Bathyurus sunbloodensis, Bathyurus margareti and Bathyurus acanthopyga. Other genera present are: Basilicus, Isote/us, ///aenus, Bumastoides, Fail/eana, Phorocepha/a,Ceraurinella, Acanthoparypha, Xystocrania, Cydonocephalus, Ectenonotus, Pseudomera, Encrinuroides, Calyptaulax, Amphilichas and Hemiarges.

Download or read book Silicified Middle Ordovician Trilobites written by Harry Blackmore Whittington and published by Geological Society of America. This book was released on 1953 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trilobites written by Ludvigsen and published by BRILL. This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Papers from the 6th International Conference on Trilobites and their Relatives written by Alan W. Owen and published by John Wiley & Sons. This book was released on 2019-04-15 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: A volume from a monograph series featuring seven papers on trilobites with brief summaries This research volume is entitled Papers from the 6th International Conference on Trilobites and their Relatives. It's Volume 64 within the Fossils and Strata monograph series. The research compilation originated from a 2017 conference in Estonia. Seven papers on trilobites are included with summaries in the publication. The papers' topics cover trilobites from the Early Cambrian to the Late Devonian.

Download or read book The Trilobites Bathyurus and Eomonorachus from the Middle Ordovician of Oklahoma and Their Biofacies Significance written by Rolf Ludvigsen and published by . This book was released on 1978 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silicified Late Ordovician Trilobites from the Mackenzie Mountains Northwest Territories Canada written by Brenda Hunda and published by . This book was released on 1983 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Ordovician Trilobites from the Lake St John District of Quebec and Their Bearing on Systematics written by P. J. Lespérance and published by . This book was released on 1995 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predator Prey Interactions in the Fossil Record written by Patricia H. Kelley and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Foreword: "Predator-prey interactions are among the most significant of all organism-organism interactions....It will only be by compiling and evaluating data on predator-prey relations as they are recorded in the fossil record that we can hope to tease apart their role in the tangled web of evolutionary interaction over time. This volume, compiled by a group of expert specialists on the evidence of predator-prey interactions in the fossil record, is a pioneering effort to collate the information now accumulating in this important field. It will be a standard reference on which future study of one of the central dynamics of ecology as seen in the fossil record will be built." (Richard K. Bambach, Professor Emeritus, Virginia Tech, Associate of the Botanical Museum, Harvard University)

Download or read book Morphodynamics written by Adolf Seilacher and published by CRC Press. This book was released on 2014-11-05 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphodynamics is defined as the unique interaction among environment, functional morphology, developmental constraints, phylogeny, and time-all of which shape the evolution of life. These fabricational patterns and similarities owe their regularity not to a detailed genetic program, but to extrinsic factors, which may be mechanical, chemical, or b

Download or read book The Ordovician System in Canada written by Christopher R. Barnes and published by . This book was released on 1981 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Upper Cambrian and Lower Ordovician Trilobite Biostratigraphy of the Rabbitkettle Formation Western District of Mackenzie written by Rolf Ludvigsen and published by ROM. This book was released on 1982 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two measured sections of the upper Rabbitkettle Formation in the western District of Mackenzie are separated by a thrust fault. These sections provide a record of silicified tribobite faunas across the Cambrian-Ordovician boundary in open marine carbonate rocks along the deeper portion of the shelf - a North American palaeogeographic setting not previously extensively sampled for macrofossils.

Download or read book Middle and Late Ordovician Lithostratigraphy and Biostratigraphy of the Upper Mississippi Valley written by and published by . This book was released on 1987 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ordovician Graptolites of the Shelve District Shropshire written by I. Strachan and published by . This book was released on 1986 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ordovician Faunas Trilobita Ostracoda Cystoidea Crinoidea from West Thailand written by Reinhard Wolfart and published by . This book was released on 2001 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes Ordovician faunas from West Thailand (Khanchanaburi, Tong Pha Phum, and Bo Noi regions), their meaning for biostratigraphy and palaeogeography (some notes on climate, ecology, and sedimentation) in the Burmese-Malayan geosyncline. It includes also worldwide important palaeontological reference works. This paper concerns palaeontologists, stratigraphers, sedimentologists, and structural geologists interested in this long and ancient period of Earth history.