campanian

from The Century Dictionary.

• Belonging to or characteristic of Campania, an ancient province of southern Italy, including the Neapolitan plain.
• noun A native or an inhabitant of Campania.
• Of or pertaining to Campania (modern Champagne): applied specifically to a geological formation.
• noun In the extensive development of the Cretaceous system in France and Belgium, the uppermost division of the Senonian, equivalent to the uppermost Cretaceous of Great Britain, where the final stage, the Danian, is wanting.