April 7, 2021 Journal article Open Access

Olivier Lambert; Alice Belluzzo

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{
  "@context": "https://schema.org/", 
  "@id": "https://doi.org/10.5194/fr-24-77-2021", 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Olivier Lambert"
    }, 
    {
      "@type": "Person", 
      "name": "Alice Belluzzo"
    }
  ], 
  "datePublished": "2021-04-07", 
  "description": "Abstract. With a remarkable exception for the Mediterranean, the worldwide\nPliocene record of true dolphins (Cetacea, Odontoceti, Delphinidae) remains\nscarce, in stark contrast with the large number of extant species testifying\nto the evolutionary success of this family. Based on a fragmentary skull\ndiscovered in lower Pliocene deposits (Zanclean, 5 to 4.4\u2009Ma) of the\nKattendijk Formation in the Antwerp harbour (Belgium, southern margin of the\nNorth Sea basin), we describe here a new delphinid species, Pliodelphis doelensis gen. et sp.\nnov. This small dolphin with cranial dimensions in the range of the\nshort-beaked common dolphin Delphinus delphis can be distinguished from other extinct and\nextant delphinids by a combination of cranial features including the maxilla\nbeing significantly narrower than the premaxilla at a short distance\nanterior to the antorbital notch in dorsal view, the maximum opening of the\nmesorostral groove being located at the level of the antorbital notches, a\ntransversely wide and anteroposteriorly long dorsal exposure of the\npresphenoid anterior to the bony nares, and all dorsal infraorbital foramina\nbeing located posterior to the premaxillary foramina. P. doelensis constitutes the first\nmember of the family described from the early Pliocene of the North Sea\nbasin and, for the whole North Atlantic realm, only the third outside the\nMediterranean. This new record contributes thus to our understanding of the\npoorly known Pliocene radiation(s) of true dolphins.", 
  "headline": "A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins", 
  "identifier": "https://doi.org/10.5194/fr-24-77-2021", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "inLanguage": {
    "@type": "Language", 
    "alternateName": "eng", 
    "name": "English"
  }, 
  "keywords": [], 
  "license": "https://creativecommons.org/licenses/by/4.0/", 
  "name": "A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins", 
  "url": "https://www.openaccessrepository.it/record/131113"
}