The Silurian is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago (Mya), to the beginning of the Devonian Period, 419.2 Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's start and end are well identified, but the exact dates are uncertain by a few million years. The base of the Silurian is set at a series of major Ordovician–Silurian extinction events when up to 60% of marine genera were wiped out.
Mequon is the largest city in Ozaukee County, in the U.S. state of Wisconsin, and the third-largest city in Wisconsin by land area. Located on Lake Michigan's western shore with significant commercial developments along Interstate 43, the community is a suburb in the Milwaukee metropolitan area. Despite being an incorporated city, approximately half of Mequon's land is undeveloped and agriculture plays a significant role in the local economy. At the time of the 2010 census the population was 23,132.
The Niagara Escarpment is a long escarpment, or cuesta, in the United States and Canada that runs predominantly east–west from New York through Ontario, Michigan, Wisconsin, and Illinois. The escarpment is most famous as the cliff over which the Niagara River plunges at Niagara Falls, for which it is named.
Grafton is a village in Ozaukee County, Wisconsin, United States. Located about 20 miles (32 km) north of Milwaukee and in close proximity to Interstate 43, it is a suburban community in the Milwaukee metropolitan area. The village incorporated in 1896, and at the time of the 2010 census the population was 11,459.
Saukville is a town in Ozaukee County, Wisconsin, United States. The Village of Saukville is located in the town's southeast quadrant. The population was 1,755 at the 2000 census.
Saukville is a village in Ozaukee County, Wisconsin, United States. Located on the Milwaukee River with a district along Interstate 43, the community is a suburb in the Milwaukee metropolitan area. The population was 4,451 at the 2010 census.
Germantown is a town in Washington County, Wisconsin, United States. The population was 278 at the 2000 census. It is surrounded by the village of Germantown.
Germantown is a village in Washington County, Wisconsin, United States. The population was 19,749 at the 2010 census. The village surrounds the Town of Germantown. In July 2007, Germantown was ranked the 30th most appealing place to live in the United States by Money Magazine.
The Milwaukee Journal Sentinel is a daily morning broadsheet printed in Milwaukee, Wisconsin, where it is the primary newspaper. It is also the largest newspaper in the state of Wisconsin, where it is widely distributed. It is currently owned by the Gannett Company.
The Eastern Ridges and Lowlands is a geographical region in the eastern part of the U.S. state of Wisconsin, between Green Bay in the north, and the border with Illinois in the south. Lake Michigan lies to the east of the region.
The United States District Court for the Eastern District of Wisconsin is a federal trial court of limited jurisdiction. The court is under the auspices of the United States Court of Appeals for the Seventh Circuit, although patent claims and claims against the federal government under the Tucker Act are appealed to the United States Court of Appeals for the Federal Circuit. The Eastern District was established on June 30, 1870.
Wisconsin's 4th congressional district is a congressional district of the United States House of Representatives in Wisconsin, encompassing a part of Milwaukee County and including all of the city of Milwaukee and its working-class suburbs of Cudahy, St. Francis, South Milwaukee, and West Milwaukee. Recent redistricting has added the Milwaukee County North Shore communities of Glendale, Shorewood, Whitefish Bay, Fox Point, Bayside, and Brown Deer to the district. It is currently represented by Gwen Moore, a Democrat.
The American System-Built Homes were modest houses designed by architect Frank Lloyd Wright. They were developed between 1912 and 1916 to fulfill his interest in affordable housing. Wright was devoted to the idea of providing beautiful yet affordable homes to the public. His firm produced over 960 drawings for the project, the largest number of drawings for any project in the Wright archives. The designs were standardized, and customers could choose from seven models. Because of this standardization, the lumber could be precut at the factory, thereby cutting down on both waste and the amount of skilled labor needed for construction. The buildings are often termed prefabricated homes, but they were not, since no parts of the homes were constructed off-site. The lumber was cut at the factory, packaged along with all other components, and delivered to the work site for construction. Some are located in a federal historic district in Milwaukee, Wisconsin, and others have been designated Chicago Landmarks in Chicago, Illinois.
Soldiers' Home Reef, also known as Rocky Point, National Military Asylum Reef, or Veterans' Hill is a fossilized coral reef rock formation in Milwaukee, Wisconsin. The reef formation was discovered by geologist Increase A. Lapham in the 1830s. It and other fossilized coral reefs that he discovered were the first geological reef formations described in North America, and are among the first described in the world. This reef was declared a National Historic Landmark in 1993.
The Thomas A. Greene Memorial Museum, also known as Greene Geological Museum or Greene Museum, is a mineral and fossil museum in Milwaukee, Wisconsin administered by the Department of Geosciences at the University of Wisconsin–Milwaukee.
Truax Field Air National Guard Base, also known as Truax Field, is a military facility located at Dane County Regional Airport. It is located five miles (8 km) northeast of the center of Madison, a city in Dane County, Wisconsin, United States.
Waubeka is an unincorporated census-designated place in the Town of Fredonia, Ozaukee County, Wisconsin, United States. Located on the Milwaukee River, the community is part of the Milwaukee metropolitan area. As of the 2010 census, its population is 657.
Paleontology in Wisconsin refers to paleontological research occurring within or conducted by people from the U.S. state of Wisconsin. The state has fossils from the Precambrian, much of the Paleozoic, and the later part of the Cenozoic. Most of the Paleozoic rocks are marine in origin. Because of the thick blanket of Pleistocene glacial sediment that covers the rock strata in most of the state, Wisconsin’s fossil record is relatively sparse. In spite of this, certain Wisconsin paleontological occurrences provide exceptional insights concerning the history and diversity of life on Earth.
The Laketown Dolomite is a dolomite geologic formation in Nevada and Utah. It preserves fossils dating back to the Silurian period.
The Waukesha Biota refers to the biotic assemblage of the Konservat-Lagerstätte of Early Silurian age within the Brandon Bridge Formation in Waukesha County and Franklin, Milwaukee County, Wisconsin. It is known for the exceptional preservation of its diverse, soft-bodied and lightly skeletonized taxa, including many major taxa found nowhere else in strata of similar age.
