Published July 17, 2009
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Fig. 3 in Gastropods from Late Cretaceous Omagari and Yasukawa hydrocarbon seep deposits in the Nakagawa area, Hokkaido, Japan
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Fig. 3. The acmaeid gastropod Serradonta omagariensis sp. nov. from the Campanian (Upper Cretaceous) Omagari (A, B, D) and Yasukawa (C) seep sites in Hokkaido, Japan. A. Holotype (UMUT MM29351) in apical (A1), lateral (A2), and anterior (A3) views. B. UMUT MM30145 in apical (B1), lateral (B2), and anterior views. C. UMUT MM30146 in apical (C1), lateral (C2), and posterior (C3) views. D. UMUT MM30147 in apical (D1) and lateral (D2) views; D3, illustrates layering of the shell while D4 is a cross section through shell showing two layers obliterated by diagenesis. Abbreviations: p, prismatic; cl, cross lamellar.
Notes
Published as part of Kaim, Andrzej, Jenkins, Robert G. & Hikida, Yoshinori, 2009, Gastropods from Late Cretaceous Omagari and Yasukawa hydrocarbon seep deposits in the Nakagawa area, Hokkaido, Japan, pp. 463-490 in Acta Palaeontologica Polonica 54 (3) on page 469, DOI: 10.4202/app.2009.0042, http://zenodo.org/record/13276492
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