翻訳と辞書 Words near each other ・ Paleontology in California ・ Paleontology in China ・ Paleontology in Colorado ・ Paleontology in Connecticut ・ Paleontology in Croatia ・ Paleontology in Delaware ・ Paleontology in Denmark ・ Paleontology in Finland ・ Paleontology in Florida ・ Paleontology in France ・ Paleontology in Georgia (U.S. state) ・ Paleontology in Germany ・ Paleontology in Hawaii ・ Paleontology in Hungary ・ Paleontology in Idaho ・ Paleontology in Illinois ・ Paleontology in India ・ Paleontology in Indiana ・ Paleontology in Iowa ・ Paleontology in Ireland ・ Paleontology in Italy ・ Paleontology in Japan ・ Paleontology in Kansas ・ Paleontology in Kentucky ・ Paleontology in Kenya ・ Paleontology in Louisiana ・ Paleontology in Maine ・ Paleontology in Maryland ・ Paleontology in Massachusetts ・ Paleontology in Michigan Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Paleontology in Illinois ： ウィキペディア英語版 Paleontology in Illinois Paleontology in Illinois refers to paleontological research occurring within or conducted by people from the U.S. state of Illinois. Scientists have found that Illinois was covered by a sea during the Paleozoic Era. Over time this sea was inhabited by animals including brachiopods, clams, corals, crinoids, sea snails, sponges, and trilobites. Fossils are common from the Ordovician through the Pennsylvanian. Illinois has a reputation for rocks bearing large numbers of trilobite fossils, often of very high preservational quality.〔 There is a gap in Illinois' geologic record from the Mesozoic to the Pleistocene. During the Ice Age, Illinois was subject to glacial activity. At the time the state was home to creatures like giant beavers, mammoths, mastodons, and stag mooses. Paleontology has a long history in the State of Illinois, stretching at least as far back as the 1850s, when the first Mazon Creek fossils were being found. Early in the ensuing 20th century a Silurian age fossil reef system was discovered in the state. In the 1950s Francis Tully discovered the "monster" that would later be named in his honor. The Pennsylvanian species ''Tullimonstrum gregarium'' ("Tully Monster") is the Illinois state fossil. It is one of the few officially designated state fossils that is endemic to the state it represents. ==Prehistory== No Precambrian fossils are known from Illinois. As such, the state's fossil record does not begin until the Paleozoic.〔 Illinois was covered by a sea during the Paleozoic. Over time this sea would be inhabited by animals like brachiopods, clams, corals, crinoids, snails, sponges, trilobites.〔 500 million years ago, during the Cambrian, the seas of Illinois resembled those of the modern Bahamas.〔 At the time, Illinois was located near the equator.〔 Illinois was home to trilobites.〔 Cambrian trilobites left their remains in the state's north-central region.〔 In other areas of Illinois Cambrian trilobite fossils have only been found in core samples drilled from deeply buried rocks.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Paleontology in Illinois」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.