|Series||Geological Survey of Canada Bulletin -- 78|
|Contributions||Norford, B. S.|
The Silurian fauna of the Sandpile Group of northern British Columbia. Geological Survey of Canada, Bulletin Evolution of the Sillurian and Devonian graptoloids. Mountains, Norford () described the overlying Silurian Sandpile Group and its fauna. The stratigraphy of the three sections, Moodie Creek, Deadwood Lake, and Cassiar – Mount McDame (Fig. 3), has been described in detail by Pyle and Barnes (). The contact of the Kechika Formation with the overlying RoadAuthor: Leanne J. Pyle, Christopher R. Barnes. Sandpile Group and its fauna. Norford, B.S. The Silurian fauna of the Sandpile Group of. northern British Columbia. Geological Survey of Canada, Bulletin northern British Columbia. Mountains, Norford () described the ov erlying Silurian. Sandpile Group and its fauna. observed east of the NRMT in northern British Columbia.
Here they are described from early Silurian (Llandovery) rocks of Canada, from southern and northern Rocky Mountains. British Columbia, and the District of Mackenzie. A third species, A. lowi, is. The Late Silurian brachiopod fauna of the Alexander terrane shows its strongest affinity with that of the Ural Mountains of Russia, as is well demonstrated by the large, distinctive pentamerid genera Brooksina Kirk, , Harpidium Kirk, , and Cymbidium Kirk, , all based on specimens found in the Heceta Limestone in the area of Prince. B.S. NorfordThe Silurian fauna of the Sandpile Group of northern British Columbia Bulletin of the Geological Survey of Canada, 78 (), pp. Google Scholar. The Greenfield fauna also is of northern distribution, and may have been derived from one of the later middle Silurian faunas already present, in the epicontinental seas of North America. DISTRIBUTION OF SILURIAN FAUNA. Some of the Silurian geologic formations can .
18 Bathurst Walk, Iver, Buckinghamshire, SL0 9AZ, U.K. Tel: +44 (0) / Fax: +44 (0) Email: [email protected]@ The Silurian (/ s ɪ ˈ lj ʊər. i. ən, s aɪ-/ sih-LYOOR-ee-ən, sy-) is a geologic period and system spanning million years from the end of the Ordovician Period, at million years ago (), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoic with other geologic periods, the rock beds that define the period's start and end. siderably more data are available on the Ordovician and Silurian coral faunas of western United States than is generally supposed. Records of corals in the Lower and Middle Ordovician rocks of the West are few. The oldest fauna, which occurs in rocks tentatively assigned a late Early Ordovician age, consists of primitive favistellids. Silurian Period - Silurian Period - Fishes: Fishes representative of all Silurian ages were widely distributed in marine environments (carbonate and clastic) in a broad belt within the latitudes 40° N and 40° S of the paleoequator. They are known from fossils of individual scales as well as from rare body molds. A wide variety of agnatha (jawless) fishes are represented by species belonging.