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{
    "pk": 41785,
    "title": "Two new plioplatecarpine mosasaurs (Mosasauridae; Plioplatecarpinae) of the genus \nEctenosaurus\n from the Upper Cretaceous of North America",
    "subtitle": null,
    "abstract": "Two new species of the rare mosasaur \nEctenosaurus\n are reported from the Upper Cretaceous of North America. \nEctenosaurus tlemonectes\n sp. nov. (YPM VP4673) consists of a largely complete skull and some associated post-cranial elements that were derived from an unknown level within the Smoky Hill Member of the Niobrara Chalk (upper Coniacian-lower Campanian), of Kansas, USA. \nEctenosaurus shannoni\n sp. nov. (ALMNH:Paleo:5452) is described from a much more fragmentary specimen collected from the unnamed member of the Mooreville Chalk (upper Santonian-lower Campanian) of Alabama, USA. These new taxa can be distinguished from the other members of the genus, \nE. clidastoides\n (Merriam, 1894) and \nE. everhartorum\n Willman et al. (2021), by clear morphological differences in the skull and jaws. Two parsimony analyses of a data matrix consisting of 98 characters and 20 terminal taxa were carried out, the first without constraints and the second constrained by the assumption of monophyly in \nEctenosaurus\n. Both analyses resulted in 30 equally parsimonious trees of 255 steps. Neither analysis yielded definitive information about the position of \nEctenosaurus\n within Plioplatecarpinae, suggesting the need for an expanded data matrix. Although \nEctenosaurus\n is an extremely rare component of the mosasaur assemblages from which it is found, it is also a diverse genus, with now at least four recognized species. This raises questions about the paleoecology and paleobiogeography of this genus and requires additional investigation.",
    "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": "Alabama, Kansas, Russellosaurina, Mooreville Chalk, Niobrara Chalk, Squamata, Santonian, Campanian"
        }
    ],
    "section": "Article",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/6jk04749",
    "frozenauthors": [
        {
            "first_name": "Caitlin",
            "middle_name": "R.",
            "last_name": "Kiernan",
            "name_suffix": "",
            "institution": "McWane Science Center, Department of Collections, 200 19th Street North, Birmingham, Alabama 35203; Alabama Museum of Natural History, Department of Research and Collections, University of Alabama, Box 870340, Tuscaloosa, AL, 35487, USA",
            "department": "None"
        },
        {
            "first_name": "Jun",
            "middle_name": "A.",
            "last_name": "Ebersole",
            "name_suffix": "",
            "institution": "McWane Science Center, Department of Collections, 200 19th Street North, Birmingham, AL, 35203, USA",
            "department": "None"
        }
    ],
    "date_submitted": "2023-10-24T01:02:04+02:00",
    "date_accepted": "2023-10-24T01:02:04+02:00",
    "date_published": "2023-10-23T09:00:00+02:00",
    "render_galley": null,
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            "label": "",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/ucmp_paleobios/article/41785/galley/31240/download/"
        }
    ]
}