Wisconsin

=Name: Trilobite= =Description of the organism:= =Time existed:= =Preservation: Preserved in rock formations. Can be found mostly in the southern part of Wisconsin, usually in limestone and dolomite deposits.= =Who found it/ Why state fossil?: Increase Allen Lapham found the first fossil specimens in the 1930's.= =Sources:= "Exploring Time & Space." The Paleontology Portal. Web. 30 Mar. 2012. . "State Fossil of Wisconsin." AtoZ The USA. 2012. Web. 30 Mar. 2012. . "Wisconsin's State Fossil." Wisconsin Department of Natural Resources. Web. 30 Mar. 2012. .
 * =//Calymene celebra//=
 * =The genus name //Calymene is Greek for "cover".//=
 * =//trilobite// means "three-lobed" in Greek.=
 * =A marine arthropod, it was three-lobed and had a hard exoskeleton that would shed as the organism grew, a segmented body, and jointed appendages. It would crawl the sea floors, feeding off of other marine life. About one to two inches (2.5 to 5 cm) in length, the largest ever found is 14 inches (35.6 cm) long.=
 * =It existed in the Ordovician and Early Silurian, Paleozoic Era (~ 460-430 million years ago). Lived in the warm salt sea waters covering North America.=