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{
    "pk": 41790,
    "title": "New mammalian herbivore records from the Early to Middle Miocene Castilletes fauna, Colombia and late Neogene environmental change in northern South America",
    "subtitle": null,
    "abstract": "<p>The Early to Middle Miocene mammal assemblage of the Castilletes Formation, Colombia records a diverse assemblage of mammals in the northern Neotropics prior to the Great American Biotic Interchange. We identify new records of herbivorous mammal taxa, with additional specimens of <em>Huilatherium </em>sp. and the first records of cf. <em>Pericotoxodon </em>sp., <em>Miocochilius </em>cf. <em>M . anomopodus</em> and ‘ <em>Scleromys</em>’ sp. All these genera are shared with other tropical Middle Miocene assemblages, including La Venta (Colombia) and Fitzcarrald (Peru) and increase the faunal similarity among them. Ecometric analysis of dental traits suggests a habitat change between the assemblages of the Castilletes Formation and the Ware Formation (Late Pliocene), consistent with results from other proxies that show increased opening and drying. In combination, these results support the utility of ecometric methods in Neogene South America and emphasise the importance of taxonomic revisions for these taxon-independent methods.</p>",
    "language": null,
    "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": "ecometrics"
        },
        {
            "word": "Neogene"
        },
        {
            "word": "South America"
        },
        {
            "word": "taxonomy"
        },
        {
            "word": "ungulate"
        },
        {
            "word": "rodent"
        }
    ],
    "section": "Article",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/1109w01k",
    "frozenauthors": [
        {
            "first_name": "Oscar",
            "middle_name": "Edward",
            "last_name": "Wilson",
            "name_suffix": "",
            "institution": "Other",
            "department": ""
        },
        {
            "first_name": "Aldo",
            "middle_name": "F.",
            "last_name": "Rincón",
            "name_suffix": "",
            "institution": "Universidad del Norte, Km 5 vía Puerto Colombia, Barranquilla, Colombia",
            "department": "None"
        },
        {
            "first_name": "Juan",
            "middle_name": "D.",
            "last_name": "Carrillo",
            "name_suffix": "",
            "institution": "Department of Biology, University of Fribourg, and Swiss Institute of Bioinformatics, Chemin du Musée 10, Fribourg, Switzerland",
            "department": "None"
        },
        {
            "first_name": "Catalina",
            "middle_name": "",
            "last_name": "Suarez",
            "name_suffix": "",
            "institution": "Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, Mendoza, 5500, Argentina",
            "department": "None"
        },
        {
            "first_name": "Juha",
            "middle_name": "",
            "last_name": "Saarinen",
            "name_suffix": "",
            "institution": "Department of Geosciences and Geography, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), 00014, Helsinki, Finland",
            "department": "None"
        }
    ],
    "date_submitted": "2024-07-23T09:30:53Z",
    "date_accepted": "2025-11-09T22:04:13.318000Z",
    "date_published": "2025-12-04T20:00:00Z",
    "render_galley": null,
    "galleys": []
}