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Falls Of The Ohio
The Falls of the Ohio National Wildlife Conservation Area is a national, bi-state area on the Ohio River near Louisville, Kentucky, in the United States, administered by the U.S. Army Corps of Engineers in partnership with the Indiana Department of Natural Resources. Federal status was awarded in 1981. The falls were designated a National Natural Landmark in 1966. Overview The area is located at the Falls of the Ohio, which was the only navigational barrier on the river in earlier times. The falls were a series of rapids formed by the relatively recent erosion of the Ohio River operating on 386-million-year-old Devonian hard limestone rock shelves. Louisville, Kentucky, and the associated Indiana communities— Jeffersonville, Clarksville, and New Albany—all owe their existence as communities to the falls, as the navigational obstacles the falls presented meant that late-18th-century and early- to late-19th-century river traffic could benefit from local expertise in naviga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indiana
Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the south and southeast, and the Wabash River and Illinois to the west. Nicknamed "the Hoosier State", Indiana is the List of U.S. states and territories by area, 38th-largest by area and the List of U.S. states and territories by population, 17th-most populous of the List of states and territories of the United States, 50 states. Its capital and largest city is Indianapolis. Indiana was admitted to the Union as the 19th state on December 11, 1816. Indigenous peoples of the Americas, Indigenous resistance to American settlement was broken with defeat of the Tecumseh's confederacy in 1813. The new settlers were primarily Americans of British people, British ancestry from the East Coast of the United States, eastern seaboard and the Upland South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inland Waterway
A waterway is any navigable body of water. Broad distinctions are useful to avoid ambiguity, and disambiguation will be of varying importance depending on the nuance of the equivalent word in other ways. A first distinction is necessary between maritime shipping routes and waterways used by inland water craft. Maritime shipping routes cross oceans and seas, and some lakes, where navigability is assumed, and no engineering is required, except to provide the draft for deep-sea shipping to approach seaports ( channels), or to provide a short cut across an isthmus; this is the function of ship canals. Dredged channels in the sea are not usually described as waterways. There is an exception to this initial distinction, essentially for legal purposes, see under international waters. Where seaports are located inland, they are approached through a waterway that could be termed "inland" but in practice is generally referred to as a "maritime waterway" (examples Seine Maritime, Loi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rugose Corals
The Rugosa or rugose corals are an extinct class of solitary and colonial corals that were abundant in Middle Ordovician to Late Permian seas. Solitary rugosans (e.g., '' Caninia'', '' Lophophyllidium'', '' Neozaphrentis'', '' Streptelasma'') are often referred to as ''horn corals'' because of a unique horn-shaped chamber with a wrinkled, or rugose, wall. Some solitary rugosans reached nearly a meter (3 ft 3 in) in length. However, some species of rugose corals could form large colonies (e.g., ''Lithostrotion''). When radiating septa were present, they were usually in multiples of four, hence ''Tetracorallia'' in contrast to modern ''Hexacorallia'', colonial polyps generally with sixfold symmetry. Rugose corals have a skeleton made of calcite that is often fossilized. Like modern corals (Scleractinia), rugose corals were invariably benthic, living on the sea floor or in a reef-framework. Some symbiotic rugose corals were endobionts of Stromatoporoidea, especially in the Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tabulate Coral
Tabulata, commonly known as tabulate corals, is a class of extinct corals. They are almost always colonial, forming colonies of individual hexagonal cells known as corallites defined by a skeleton of calcite, similar in appearance to a honeycomb. Adjacent cells are joined by small pores. Their distinguishing feature is their well-developed horizontal internal partitions (''tabulae'') within each cell, but reduced or absent vertical internal partitions ( ''septa''). They are usually smaller than rugose corals, but vary considerably in shape, from flat to conical to spherical. Around 300 species have been described. Among the most common tabulate corals in the fossil record are '' Aulopora'', '' Favosites'', '' Halysites'', '' Heliolites'', '' Pleurodictyum'', ''Sarcinula'' and '' Syringopora''. Tabulate corals with massive skeletons often contain endobiotic symbionts, such as cornulitids and '' Chaetosalpinx''. Like rugose corals, they lived entirely during the Paleozoic, being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eifelian
The Eifelian is the first of two faunal stages in the Middle Devonian Epoch. It lasted from 393.3 ± 1.2 million years ago to 387.7 ± 0.8 million years ago. It was preceded by the Emsian Stage and followed by the Givetian Stage. North American subdivisions of the Eifelian Stage include Southwood, and part of Cazenovia (or Cazenovian). Name and definition The Eifelian is named after the Eifel Mountains of Western Germany, which exposed the GSSP section at the Wetteldorf Richtschnitt outcrop. The base of the Eifelian is defined by the start of the '' Polygnathus partitus'' conodont zone. This layer lies within the Upper Heisdorf Formation, below the base of the Lauch Formation. Major events The earliest forest is known from the Eifelian stage. Cladoxylopsid trees including '' Calamophyton'' and other plants have formed the forest landscape in what is now England. Extinctions The end of the Eifelian was marked by a biological crisis known as the Kačák Event, a two-pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emsian
The Emsian is one of three faunal stages in the Early Devonian Epoch. It lasted from 410.62 ±1.95 million years ago to 393.47 ±0.99 million years ago. It was preceded by the Pragian Stage and followed by the Eifelian Stage. It is named after the Ems river in Germany. The GSSP is located in the Zinzil'ban Gorge in the Kitab State Geological Reserve of Uzbekistan , image_flag = Flag of Uzbekistan.svg , image_coat = Emblem of Uzbekistan.svg , symbol_type = Emblem of Uzbekistan, Emblem , national_anthem = "State Anthem of Uzbekistan, State Anthem of the Republ ..., above the contact with the Madmon Formation. In North America the Emsian Stage is represented by Sawkill or Sawkillian time. Biological events During this period, earliest known agoniatitid ammonoid fossils began appearing within this stage after first appearing in previous stage and began to evolutionarily radiate within this stage, in which a new ammonoid or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rugose2
Rugose means "wrinkled". It may refer to: * Rugosa, an extinct order of coral, whose rugose shape earned it the name * Rugose, adjectival form of rugae Species with "rugose" in their names * ''Idiosoma nigrum'', more commonly, a black rugose trapdoor spider * Rugose spiraling whitefly {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interpretive Center
An interpretation centre, interpretive centre, or visitor interpretive centre is an institution for dissemination of knowledge of natural or cultural heritage. Interpretation centres are a kind of new-style museum, often associated with visitor centres or ecomuseums, and located in connection to cultural, historic or natural sites. Interpretation centres use different means of communication to enhance the understanding of heritage. To aid and stimulate the discovery process and the visitor's intellectual and emotional connection to heritage, the main presentation strategy tends to be user-friendly and interactive, and often use scenographic exhibitions and multimedia programs. Many interpretation centres have temporary exhibitions related to a specific aspect of the site. An interpretation centre can be a viable solution for effective communication of heritage information in municipalities and rural areas where resources may not exist to establish a traditional, full-scale muse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falls Of The Ohio State Park
Falls of the Ohio State Park is a state park in the U.S. state of Indiana. It is located on the banks of the Ohio River at Clarksville, Indiana, across from Louisville, Kentucky. The park is part of the Falls of the Ohio National Wildlife Conservation Area. The exposed fossil beds of the Jeffersonville Limestone dated from the Devonian period are the main feature of the park, attracting about 160,000 visitors annually. The Falls was the site where Lewis and Clark met for the Lewis and Clark Expedition at George Rogers Clark's cabin. The park includes an interpretive center open to the public. In 1990, the Indiana state government hired Terry Chase, a well-established exhibit developer, to design the center's displays. Construction began in September 1992, costing $4.9 million with a total area of . The center functions as a museum with exhibits that concentrate on the natural history related to findings in the nearby fossil beds as well as the human history of the Louisville ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Bison
The American bison (''Bison bison''; : ''bison''), commonly known as the American buffalo, or simply buffalo (not to be confused with Bubalina, true buffalo), is a species of bison that is endemic species, endemic (or native) to North America. It is one of two extant species of bison, along with the European bison. Its habitat, historical range ''circa'' 9000 BC is referred to as the great bison belt, a tract of rich grassland spanning from Alaska south to the Gulf of Mexico, and east to the Atlantic Seaboard (nearly to the Atlantic tidewater (geographic term), tidewater in some areas), as far north as New York (state), New York, south to Georgia (U.S. state), Georgia, and according to some sources, further south to northern Florida, with sightings in North Carolina near Buffalo Ford on the Catawba River as late as 1750. Two subspecies or ecotypes have been described: the plains bison (''B. b. bison''), smaller and with a more rounded hump; and the wood bison (''B. b. athabascae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buffalo Trace (road)
The Vincennes Trace was a major trackway running through what are now the American states of Kentucky, Indiana, and Illinois. Originally formed by millions of migrating bison, the Trace crossed the Ohio River near the Falls of the Ohio and continued northwest to the Wabash River, near present-day Vincennes, before it crossed to what became known as Illinois. This buffalo migration route, often 12 to 20 feet wide in places, was well known and used by American Indians. Later European traders and American settlers learned of it, and many used it as an early land route to travel west into Indiana and Illinois. It is considered the most important of the traces to the Illinois country. It was known by various names, including Buffalo Trace, Louisville Trace, Clarksville Trace, and Old Indian Road. After being improved as a turnpike, the New Albany-Paoli Pike, among others. The Trace's continuous use encouraged improvements over the years, including paving and roadside development. U. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
