Fossiliferous limestone is an organic sedimentary rock formed from the accumulation of marine organism remains, which solidifies into rock containing visible fossils.
Fossiliferous limestone is a type of sedimentary rock that is considered an organic sedimentary rock.
This classification is based on its formation from the accumulation of organic material - specifically, the calcareous (calcium carbonate) shells and skeletons of marine organisms.
When these organisms die, their remains accumulate on the ocean floor, get buried over time, and eventually solidify into rock.
These biological processes lead to the chemical precipitation of minerals, primarily calcium carbonate.
Fossiliferous limestone contains visible fossils and is used as a record of the geological past, including the types of organisms that existed at the time of its formation.