Fossils

• University College London's geology department explains shelly limestone is made up of marine fossils such as coral, which are packed together in calcite cement to form a hard limestone rock. These fossils formed between 200 and 300 million years ago.
  
  

Uses

• Shelly limestone is a tough, almost pure form of limestone, according to University College London. The rock is used in the construction industry, to create cement for road surfaces and as a source of calcium carbonate for the chemicals industry.
  
  

Landscape

• Th S-Cool website explains that limestone, such as shelly limestone forms a distinctive landscape called karst. A large area of karst landscape is found in the United Kingdom, particularly in the Yorkshire Dales and Peak District regions.