Limestone high quality quarried limestone, called Indiana limestone. Many famous buildings in London are built from Portland limestone. Limestone was also a very popular building block in the Middle Ages in the areas where it occurred, since it is hard, durable, and commonly occurs in easily accessible surface exposures. Many medieval churches and castles in Europe are made of limestone. Beer stone was a popular kind of limestone for medieval buildings in southern England. Limestone and (to a lesser extent) marble are reactive to acid solutions, making acid rain a significant problem to the preservation of artifacts made from this stone.
Shining thicket rat 1818, which refers to the South American "Oxymycterus rutilans". Shining thicket rat The shining thicket rat ("Grammomys poensis") is a species of rodent in the family Muridae. It is found in Angola, Burundi, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Liberia, Nigeria, Rwanda, and Uganda. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, and subtropical or tropical moist shrubland. The species is more commonly referred to as G. rutilans, but Musser and Carleton (2005) noted that "Mus rutilans" Peters,