Articles producció científica> Enginyeria Mecànica

Swimming and feeding in the Ordovician trilobite Microparia speciosa shed light on the early history of nektonic life habit

  • Identification data

    Identifier: imarina:9324077
  • Authors:

    Jorge Esteve
    Matheo López-Pachón
  • Others:

    Author, as appears in the article.: Jorge Esteve; Matheo López-Pachón
    Department: Enginyeria Mecànica
    e-ISSN: 1872-616X
    URV's Author/s: López-Pachón, Matheo
    Project code: Grant agreement No. 945413
    Abstract: Computational Fluid Dynamic simulations (CFD) show that the Ordovician trilobite Microparia speciosa had a high stability in the horizontal plane (parallel to the flow currents), suggesting that it could be very stable in the water column when it was enrolled, for hovering or to get stabilization when the current disturbed the swimming. This indicates a new way to use enrolment in trilobites during the Ordovician radiation, not only for protection against predators or the environment but also as a hydrodynamic tool to maintain stability within the water column. Metachronal propulsion was likely used by Microparia speciosa for swimming and, in a high-viscosity scenario, also for feeding. This is suggesting given that the vortex below Microparia speciosa takes particles directly to the mouth, and taken more particles when the trilobite is orientated in the way of the current (and no countercurrent). This suggests a passive feeding strategy for better energy saving when the trilobite is hovering in water column.
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    ISSN: 0031-0182
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source:
    Funding program: Marie Sklodowska-Curie Actions – European Union’s Horizon 2020 research and innovation programme
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    Acronym: MFP-Plus
    Article's DOI: 10.1016/j.palaeo.2023.111691
    Journal publication year: 2023
    Funding program action: Martí i Franquès COFUND Doctoral Programme
    Publication Type: info:eu-repo/semantics/article
  • Keywords:

    GOBE Arthropods Nektonization Computational fluid dynamics Biomechanics
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