Fossil and life reconstruction model of Nipponites mirabilis （Image source：Masahiro miyasaka， CC BY-SA 4.0 ） Age Cretaceous（Turonian-Santonian） 93.9-83.6 Ma Taxonomy Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida Family: Nostoceratidae Genus: Nipponites Species: Nipponites mirabilis Morphological description Nipponites mirabilis exhibits a regular planispiral coiling during its early ontogenetic stages, with tightly wound whorls resembling those of