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{
    "pk": 41752,
    "title": "The first \nin situ\n collection of a mosasaurine from the marine Breien Member of the Hell Creek Formation in south-central North Dakota, USA",
    "subtitle": null,
    "abstract": "The upper Maastrichtian Breien Member situated within the lower portion of the Hell Creek Formation in south-central North Dakota records one of the last transgressions of the Western Interior Seaway (WIS) during the terminal Cretaceous. A fragmentary articular-prearticular complex and isolated vertebra belonging to a mosasauroid were recovered in 2016 from sandstones and mudstones deposited in a nearshore marine paleoenvironment within the southern arm of the bisected WIS. The medially-rotated retroarticular process on the articular-prearticular complex, the shape of the glenoid fossa, along with the morphology of the isolated vertebra, facilitate a conservative referral to a large-bodied mosasaurine such as \nMosasaurus\n or \nPrognathodon\n. The rocks of the Breien Member provide paleontologists a unique glimpse of intracontinental marine ecosystems immediately prior to the end of the Cretaceous Period. This discovery provides additional evidence that the latest Maastrichtian marine fauna is a continuation of the fauna preserved in the underlying Fox Hills Formation and that the marine faunal turnover that gave rise to the subsequent Cannonball Sea fauna recorded in Paleocene rocks in North Dakota occurred at the Cretaceous-Paleogene boundary.",
    "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": "Biogeography, Youngest Occurrence, Morphology, Squamate, Marine"
        }
    ],
    "section": "Article",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/8v08w2d6",
    "frozenauthors": [
        {
            "first_name": "Nathan",
            "middle_name": "E.",
            "last_name": "Van Vranken",
            "name_suffix": "",
            "institution": "STEM Division, Potomac State College, Keyser, West Virginia, USA",
            "department": "None"
        },
        {
            "first_name": "Clint",
            "middle_name": "A.",
            "last_name": "Boyd",
            "name_suffix": "",
            "institution": "North Dakota Geological Survey, Bismarck, North Dakota, USA",
            "department": "None"
        }
    ],
    "date_submitted": "2021-08-19T23:48:16+01:00",
    "date_accepted": "2021-08-19T23:48:16+01:00",
    "date_published": "2021-08-19T08:00:00+01:00",
    "render_galley": null,
    "galleys": [
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            "label": "",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/ucmp_paleobios/article/41752/galley/31220/download/"
        }
    ]
}