Geography of New Caledonia point is Mont Panié at elevation. The total area of New Caledonia is , of those being land. A territorial dispute exists with regard to the uninhabited Matthew and Hunter Islands, which are claimed by both France (as part of New Caledonia) and Vanuatu. The New Caledonian archipelago is a microcontinental island chain which originated as a fragment of Zealandia, a nearly submerged continent or microcontinent which was part of the southern supercontinent of Gondwana during the time of the dinosaurs. The Grande Terre group of New Caledonia, with Mont Panié at as its highest point, is the most elevated
New Caledonia rivers and lakes of New Caledonia. Some, such as "Neogalaxias", exist only in small areas. The nautilus—considered a living fossil and related to the ammonites, which became extinct at the end of the Mesozoic era—occurs in Pacific waters around New Caledonia. There is a large diversity of marine fish in the surrounding waters, which are within the extents of the Coral Sea. Several species of New Caledonia are remarkable for their size: "Ducula goliath" is the largest extant species of pigeon; "Rhacodactylus leachianus", the largest gecko in the world; "Phoboscincus bocourti" the largest skink in the world, thought to be