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{
    "pk": 41595,
    "title": "Herpetocetine (Cetacea: Mysticeti) dentaries from the Upper Miocene  Santa Margarita Sandstone of Central California",
    "subtitle": null,
    "abstract": "Two fossil baleen whale (Mysticeti) dentaries from the Upper Miocene (10–12 Ma) Santa Margarita Sandstone of Central California preserve several distinct features similar to the enigmatic herpetocetine whale \nHerpetocetus\n. These features include an elongate coronoid process, a mandibular condyle with a planar articular surface, and a posteriorly extended angular process. The dentary is unknown for several Herpetocetinae (and the more inclusive clade Cetotheriidae), including the coeval \nNannocetus eremus\n. This occurrence would extend the known record of \nHerpetocetus\n by 6 Ma. Given the currently poor knowledge of Pacific Cetotheriidae during the Miocene, these specimens are identified to the subfamily Herpetocetinae, despite the similarity of these specimens to \nHerpetocetus\n. As the morphology of the supposedly distinctive lectotype dentary of \nHerpetocetus scaldiensis\n (the type species of \nHerpetocetus\n) may not be unique to \nHerpetocetus\n, this study suggests that the mandibular morphology of fossil mysticetes may be more homoplastic (or conservative) than previously assumed. Mysticete taxonomy should employ autapomorphic characters beyond the morphology of the dentary alone.",
    "language": "en",
    "license": null,
    "keywords": [
        {
            "word": "Baleen"
        },
        {
            "word": "Mysticeti"
        },
        {
            "word": "Cetacea"
        },
        {
            "word": "Santa Margarita Sandstone"
        },
        {
            "word": "Miocene"
        }
    ],
    "section": "Article",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/2pk1c7db",
    "frozenauthors": [
        {
            "first_name": "Robert",
            "middle_name": "W.",
            "last_name": "Boessenecker",
            "name_suffix": "",
            "institution": "Montana State University",
            "department": "None"
        }
    ],
    "date_submitted": "2014-03-18T16:48:12Z",
    "date_accepted": "2014-03-18T16:48:12Z",
    "date_published": "2011-02-18T08:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/ucmp_paleobios/article/41595/galley/31137/download/"
        }
    ]
}