What kind of sea animals can you find in limestone?

Limestone often contains fossils of marine animals, indicating that it was formed in shallow, warm seas. Common sea animals found in limestone include corals, mollusks like clams and snails, and echinoderms such as sea urchins and starfish. These organisms contribute to the sediment that eventually compacts into limestone rock. Additionally, the porous nature of limestone can host various marine life in its crevices and cavities.