Paleontological Research

Additional Early Triassic (late Olenekian) Ammonoids from the Osawa Formation at Yamaya, Motoyoshi area, South Kitakami Belt, Northeast Japan

Variation of geochemical signals in coral skeletons: Environmental changes or biological processes?

Cuticle Formation of the Adductor Muscle Attachment in a Podocopid Ostracod, as an Example of a Calcified Arthropod

Coiled Nautiloids from the Lower Carboniferous Fayetteville Formation in Arkansas, Midcontinent North America

Changes in cavernicolous bivalve assemblages and environments within a submarine cave in the Okinawa Islands during the last 5,000 years

Carboniferous and Permian foraminifers from limestone fragments contained in the Upper Cretaceous Hiromine Formation in north of Himeji, Hyogo, Japan

Calcareous nannofossil and planktic foraminiferal biostratigraphy of the Paleogene Iojima Group in the Takashima Coalfield, Nagasaki Prefecture, southwest Japan

Batillariid and potamidid gastropods from the Middle Miocene Kukinaga Group, Tanegashima Island, southwest Japan, and their paleobiogeographic implications

Associations Between Stable Carbon Isotope Ratio and Vegetation in Modern and Fossil Land SnailsMandarina chichijimanaon Chichijima of the Ogasawara Islands

Articulatory and musculatory systems in a Permian concavo-convex brachiopod Waagenoconcha imperfecta Prendergast, 1935 (Productida, Brachiopoda)

Anin situVesicomyid-dominated Cold-seep Assemblage from the Lowermost Pleistocene Urago Formation, Kazusa Group, Forearc Basin Fill on the Northern Miura Peninsula, Pacific Side of Central Japan

Algae and their chloroplasts with particular reference to the dinoflagellates