Articles producció científica> Enginyeria Mecànica

Cephalic biomechanics underpins the evolutionary success of trilobites

  • Dades identificatives

    Identificador: imarina:9207346
  • Autors:

    Esteve J
    Marcé-Nogué J
    Pérez-Peris F
    Rayfield E
  • Altres:

    Autor segons l'article: Esteve J; Marcé-Nogué J; Pérez-Peris F; Rayfield E
    Departament: Enginyeria Mecànica
    Autor/s de la URV: Marcé Nogué, Jordi
    Paraules clau: Trilobite Substrate Record Predation Moulting Finite-element models Exuviation Evolution Early cambrian trilobites Biomechanics Arthropod
    Resum: Arthropods (i.e. insects, spiders, crustaceans, myriapods and others), are the most successful Phanerozoic animals. The group is characterized by the possession of a segmented body, jointed limbs and a hard cuticle that is episodically moulted. One highly successful but now extinct group of arthropods is the trilobites. Trilobites underwent episodic moulting (ecdysis), and most trilobites possess facial sutures, lines of weakness in the cephalon, via which the exuviae is shed and the animal emerges. However, zones of weakness appear to represent a structural trade-off or constraint, particularly during burrowing; sacrificing a consolidated head region useful in burrowing for the ability to moult. Here we reconcile this trade-off by using biomechanical modelling to demonstrate that facial sutures exist in regions of low stress during the application of burrowing loads. Furthermore, facial sutures and the structure of the cephalon enable sutured trilobites to withstand greater stresses than their non-suture counterparts. We suggest that this ability to withstand greater burrowing loads enabled trilobites to successfully invade bioturbated and more consolidated sediments of the Cambrian Sediment Revolution, thus facilitating their diversification in the Cambrian and Ordovician and contributing to the evolutionary success of this iconic arthropod group.
    Àrees temàtiques: Planejamento urbano e regional / demografia Paleontology Materiais Geociências Ecology, evolution, behavior and systematics Ciências biológicas i Ciências ambientais Biodiversidade Astronomia / física
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: jordi.marce@urv.cat
    Identificador de l'autor: 0000-0001-9852-7027
    Data d'alta del registre: 2024-07-27
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://onlinelibrary.wiley.com/doi/full/10.1111/pala.12541
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Palaeontology. 64 (4): 519-530
    Referència de l'ítem segons les normes APA: Esteve J; Marcé-Nogué J; Pérez-Peris F; Rayfield E (2021). Cephalic biomechanics underpins the evolutionary success of trilobites. Palaeontology, 64(4), 519-530. DOI: 10.1111/pala.12541
    DOI de l'article: 10.1111/pala.12541
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2021
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Ecology, Evolution, Behavior and Systematics,Paleontology
    Trilobite
    Substrate
    Record
    Predation
    Moulting
    Finite-element models
    Exuviation
    Evolution
    Early cambrian trilobites
    Biomechanics
    Arthropod
    Planejamento urbano e regional / demografia
    Paleontology
    Materiais
    Geociências
    Ecology, evolution, behavior and systematics
    Ciências biológicas i
    Ciências ambientais
    Biodiversidade
    Astronomia / física
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