Bivalve borings in Lower Jurassic<i>Lithiotis</i>fauna from northeastern Italy and its palaeoecological interpretation

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  • Davide Bassi
    Dipartimento di Fisica e Scienze della Terra, Università degli Studi di Ferrara, Ferrara, Italy
  • Renato Posenato
    Dipartimento di Fisica e Scienze della Terra, Università degli Studi di Ferrara, Ferrara, Italy
  • James H. Nebelsick
    Department of Geosciences, University of Tübingen, Tübingen, Germany
  • Masato Owada
    Faculty of Science, Department of Biological Sciences, Kanagawa University, Hiratsuka, Japan
  • Enrica Domenicali
    Museo di Casa Romei, Polo Museale dell'Emilia Romagna, Ferrara, Italy
  • Yasufumi Iryu
    Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Sendai, Japan

書誌事項

公開日
2017-01-05
DOI
  • 10.1080/08912963.2016.1265956
公開者
Informa UK Limited

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説明

AbstractRandom shell sections of the Pliensbachian (Early Jurassic) larger bivalve Opisoma from columns within the Main Post Office building of Ferrara, northern Italy, have been discovered to bear neat clavate-shape boreholes. These boreholes belong to the ichnogenus Gastrochaenolites Leymerie and represent bivalve borings. Opisoma is a subordinate component of the Lithiotis fauna characterised by aberrant shells thriving in tropical lagoonal settings which were widespread throughout the Tethyan and Panthalassa coasts. Although the Lithiotis fauna is well known in the palaeontological literature, no bivalve boring have been so far been formally described. The uniqueness of the morphology, size and substrate of these borings merits the designation of the new species Gastrochaenolites messisbugi ichnosp. nov. which thereby represents the first ichnospecies described from this fauna. The morphology of the boreholes and the included bivalves allows the boring activity to be ascribed to a mytilid bivalve. Pal...

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