@article{cfafb980f18c4e80bd7c3dcb32f7b6a7,
title = "Mid-Cretaceous step-wise demise of the carbonate platform biota in the Northwest Pacific and establishment of the North Pacific biotic province",
abstract = "The global spatiotemporal distribution of the Cretaceous carbonate platform biota, which is characterized by {"}tropical{"} Mesogean (= Cretaceous Tethys) taxa, is an important aspect of Earth's paleobiogeography. All available records of this biota in the Northwest Pacific (Japan and Sakhalin Island) are summarized in order to elucidate its stratigraphic distribution patterns and faunal changes, with special attention given to the biota of the Late Aptian-Early Albian. This carbonate platform biota flourished from the Berriasian to Early Albian interval in the Northwest Pacific, indicating that the Northwest Pacific clearly belonged to the Tethyan biotic realm at that time. A step-wise demise of the carbonate platform biota transpired in the latest Aptian to middle Albian interval. Mesogean key taxa (rudists and dasycladacean algae), some Mesogean indicators (hermatypic corals and stromatoporoids) and nerineacean gastropods disappeared at the Late Aptian to Early Albian transition. Following this event, other Mesogean indicators (orbitolinid foraminifers and calcareous red algae) and coated grains disappeared at the Early to middle Albian transition. There is no record of carbonate platform biota in the Northwest Pacific during the long interval between the Middle Albian and Paleocene. The step-wise demise of the carbonate platform biota in the latest Aptian-middle Albian interval strongly implies a {"}vicariance event{"}, which separated the North Pacific from the Tethyan biotic realm and established the North Pacific biotic province.",
keywords = "Albian, Aptian, Mesogean, North Pacific, Provincialism, Tethys, Vicariance event",
author = "Yasuhiro Iba and Sano, {Shin ichi}",
note = "Funding Information: We would like to dedicate this paper to the late H. Hayakawa in praise of his great contribution to the paleontological study of Cretaceous mollusks. We express our deep gratitude to K. Tanabe (Univ. of Tokyo), K. Yoshida (Shinshu Univ.) and A. Takahashi (Waseda Univ.) for helpful suggestions both in the field and laboratory and for critical reading of the manuscript. We thank the helpful comments and suggestions by anonymous reviewers to improve this manuscript, and T. Matsumoto (Kyushu Univ.), T. Hamada (Univ. of the Air), I. Hayami (Univ. of Tokyo), T. Oji (Univ. of Tokyo), late H. Hayakawa, Y. Shigeta (National Science Museum), Y. Hikida (Nakagawa Museum), Y. Morino (Pacific Consultant Co.) and N. Kikuchi (Kochi Univ.) for helpful discussion about paleobiogeography of the North Pacific regions and records of carbonate platform biota in Japan. Thanks are extended to R. Takashima (Hokkaido Univ.) for discussion about chronology and geology of the Sorachi and Yezo groups. We thank K. Hirauchi (Tsukuba Univ.) and K. Kosaka (Nihon Univ.) for the discussion about palaeogeography and tectonic setting of Northwest Pacific margins. We thank R. Schroeder (Senckenberg Museum) for the help in the identification of Orbitolina. We are grateful to the members of IGCP 434 “Land–Ocean Interactions of Carbon Cycle and Bio-diversity Change during the Cretaceous in Asia (Project Leader: H. Hirano)” for their helpful discussion and encouragement. This research was financially supported by a Grant-in-Aid from JSPS Research Fellowship (No. 10778 in 2006 and No. 3749 in 1992) and a part of the scientific research fund of the 21st Century Center of Excellence Program to the University of Tokyo (G3, leader T. Yamagata).",
year = "2007",
month = mar,
day = "16",
doi = "10.1016/j.palaeo.2006.09.008",
language = "英語",
volume = "245",
pages = "462--482",
journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",
issn = "0031-0182",
publisher = "Elsevier B.V.",
number = "3-4",
}