Carboniferous Limestone is a type of sedimentary rock formed during the Carboniferous Period, which lasted from about 359 to 299 million years ago. This rock is primarily composed of calcium carbonate, derived from the remains of marine organisms like corals and shellfish. It is often found in regions that were once covered by shallow seas. The rock is known for its distinctive features, including fossils and its ability to form caves through a process called karstification. Carboniferous Limestone is commonly used in construction and as a source of lime for agriculture, making it an important resource in various industries.