Belemnite

: In various regions, ground-up belemnites were used as folk remedies for ailments like rheumatism, sore eyes, and even kidney stones in horses. 3. The "Belemnite Battlefields"

Belemnites were squid-like marine mollusks belonging to the class, making them cousins to modern squids, octopuses, and the extinct ammonites . belemnite

Paleontologists often find thousands of these fossils clustered together in "death beds" known as . Belemnites - British Geological Survey : In various regions, ground-up belemnites were used