{"pk":41741,"title":"Califrapana\n: a new genus of California and Bája California late Oligocene to early Miocene muricids previously attributed to the genus \nRapana\n (Mollusca: Gastropoda: Muricidae)","subtitle":null,"abstract":"Califrapana\n n. gen., is proposed for California late Oligocene to early Miocene muricids attributed previously to the possibly Paleocene to modern western Pacific and Indian oceans genus\n Rapana\n. Four fossil species have been assigned to \nRapana\n in the eastern Pacific. One of these species, \nR. perrini\n Clark and Arnold (1923), should be placed in another genus, the other species \nPurpura vaquerosensis\n Arnold (1907), \nR. imperialis\n Hertlein and Jordan (1927), and \nR. serrai\n Wiedey (1928) are synonymized here with the morphologically variable species \nCalifrapana vaquerosensis\n n. comb. We confirm \nC. vaquerosensis\n is an index fossil for the lower and middle “Vaqueros” California provincial molluscan stage of late Oligocene to early Miocene age in southern California and Bája California, México, although the lack of numerical dating and the misuse of lithostratigraphic and biostratigraphic names had made that difficult to determine. \nCalifrapana\n is distinguishable from similar genera by 1) its heavier shell, 2) an aperture that is pointed at its anterior and posterior ends, 3) more numerous fine to coarse spiral cords on the ultimate whorl, 4) less numerous nodes at the top of the ultimate whorl, which are commonly larger and more pronounced, and 5) the siphonal fasciole, which is large and broad, with a large, open channel.","language":"en","license":{"name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0","short_name":"CC BY-NC-SA 4.0","text":"<p><!-- x-tinymce/html --></p>\n<p>Readers are free to:</p>\n<ul>\n<li><strong>Share</strong> — copy and redistribute the material in any medium or format</li>\n<li><strong>Adapt</strong> — remix, transform, and build upon the material<br><br>The licensor cannot revoke these freedoms as long as you follow the license terms.</li>\n</ul>\n<p>Under the following terms:</p>\n<ul>\n<li><strong>Attribution</strong> — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.</li>\n<li><strong>NonCommercial</strong> — You may not use the material for commercial purposes .</li>\n<li><strong>ShareAlike</strong> — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.<br><br>No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.</li>\n</ul>\n<p>Notices:</p>\n<p>You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.</p>\n<p>No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.</p>","url":"https://creativecommons.org/licenses/by-nc-sa/4.0"},"keywords":[{"word":"Califrapana vaquerosensis, new combination, fossil gastropod, shallow-marine, \"Vaqueros\" molluscan stage, eastern Pacific, western Pacific"}],"section":"Article","is_remote":true,"remote_url":"https://escholarship.org/uc/item/3wr5675z","frozenauthors":[{"first_name":"Charles","middle_name":"L.","last_name":"Powell, II","name_suffix":"","institution":"United States Geological Survey, Menlo Park, CA 94025","department":"None"},{"first_name":"Roland","middle_name":"","last_name":"Houart","name_suffix":"","institution":"Research Associate: Royal Belgian Institute of Natural Sciences, Brussels, Belgium and Institute of Systematics, Evolution, Biodiversity (ISYEB); National Museum of Natural History (MNHN), CNRS, SU, EPHE, UA CP 51, 57 rue Cuvier, 75005 Paris, France.","department":"None"}],"date_submitted":"2021-04-15T18:45:21Z","date_accepted":"2021-04-15T18:45:21Z","date_published":"2021-04-15T07:00:00Z","render_galley":null,"galleys":[{"label":"","type":"pdf","path":"https://journalpub.escholarship.org/ucmp_paleobios/article/41741/galley/31213/download/"}]}