Environment of Utah - Climate of Utah, Invasive Plant Species in Utah, Natural History of Utah, Cedar Mountain Formation, Arundo Donax (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 33. Chapters: Climate of Utah, Invasive plant species in Utah, Natural history of Utah, Cedar Mountain Formation, Arundo donax, Downwinders, Climate of Salt Lake City, Kayenta Formation, List of Superfund sites in Utah, Green River Formation, Salsola, Dinosaur National Monument, Solanum elaeagnifolium, Utahraptor, Invasive grasses of North America, Kaiparowits Formation, Bromus sterilis, Lake Bonneville, Miracle of the gulls, Cleveland Lloyd Dinosaur Quarry, Great Salt Lake effect, Tamarix chinensis, Tamarix gallica, Salsola kali, Hanksville-Burpee Quarry, Bromus diandrus, Eragrostis cilianensis, Tamarix ramosissima, Cuscuta californica, Artemisia biennis, Atriplex suberecta, Puccinellia distans, Tamarix parviflora, Jardine Juniper, Utah Open Lands Conservation Association, Utah Department of Environmental Quality. Excerpt: The Cedar Mountain Formation is the name given to distinctive sedimentary rocks in eastern Utah that occur between the underlying Morrison Formation and overlying Naturita Formation (sometimes incorrectly called the Dakota Formation). It is composed of non-marine sediments, that is, sediments deposited in rivers, lakes and on flood plains. Based on various fossils and radiometric dates, the Cedar Mountain Formation was deposited during the last half of the Early Cretaceous, about 127 - 98 million years ago (mya). Dinosaurs occur throughout the formation, but their study has only occurred since the early 1990s. The dinosaurs in the lower part of the formation differ from those in the upper part. These two dinosaur assemblages, characterized by distinct dinosaurs, show the replacement of older, European-like dinosaurs with younger, Asian-like dinosaurs as the North American Continental Plate drifted westward. A middle dinosaur assemblage may be present, but the fossil record is not clear. The formation was named...