Ammonites were an extinct group of marine cephalopods, recognized by their distinctive, coiled shells. Flourishing during the Mesozoic Era, they are among the most common and widely studied fossils of ancient ocean life.
Ammonites were an extinct group of marine cephalopods, recognized by their distinctive, coiled shells. Flourishing during the Mesozoic Era, they are among the most common and widely studied fossils of ancient ocean life.