Two batillariid and four potamidid species from the middle to upper Middle Miocene Kukinaga Group, Tanegashima Island, southwest Japan are described systematically. Of these, the two batillariid species are new to science. Batillariids and potamidids from the Kukinaga Group are composed of three elements: (1) survivors from the late Early to early Middle Miocene, (2) species confined to the middle to late Middle Miocene, and (3) earliest records of living species. The occurrence of Vicarya japonica Yabe and Hatai from the Kukinaga Group marks the last appearance of the species in the Neogene of Japan, and the presence of Telescopium telescopium (Linné) and Cerithidea (Cerithideopsilla) cingulata (Gmelin) marks their first appearance in the Neogene in the Indo-Pacific region. The Kukinaga molluscan fauna, characterized by the occurrence of these gastropods, flourished during the Middle Miocene along the Pacific coast of southwestern Japan under the strong influence of a paleo-Kuroshio warm current. This period corresponds to a remarkable marine climatic warming event correlated with Neogene Climatic Optimum 2.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.