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dc.contributor.authorMarcé Nogué, Jordi
dc.contributor.authorFortuny Terricabras, Josep
dc.contributor.authorSánchez Romero, Montserrat
dc.contributor.authorEsteban Trivigno, Soledad de
dc.contributor.authorGil Espert, Lluís
dc.contributor.authorGalobart, Àngel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
dc.identifier.citationMarcé-Nogué, J., Fortuny, J., Sanchez, M., Esteban-Trivigno, S., Gil, L., Galobart, À. 3D computacional mechanics elucidate the evolutionary implications of orbit position and size diversity of early amphibians. "PLoS one", 24 Juny 2015, vol. 10, núm. 6, p. 1-23.
dc.description.abstractFor the first time in vertebrate palaeontology, the potential of joining Finite Element Analysis (FEA) and Parametrical Analysis (PA) is used to shed new light on two different cranial parameters from the orbits to evaluate their biomechanical role and evolutionary patterns. The early tetrapod group of Stereospondyls, one of the largest groups of Temnospondyls is used as a case study because its orbits position and size vary hugely within the members of this group. An adult skull of Edingerella madagascariensis was analysed using two different cases of boundary and loading conditions in order to quantify stress and deformation response under a bilateral bite and during skull raising. Firstly, the variation of the original geometry of its orbits was introduced in the models producing new FEA results, allowing the exploration of the ecomorphology, feeding strategy and evolutionary patterns of these top predators. Secondly, the quantitative results were analysed in order to check if the orbit size and position were correlated with different stress patterns. These results revealed that in most of the cases the stress distribution is not affected by changes in the size and position of the orbit. This finding supports the high mechanical plasticity of this group during the Triassic period. The absence of mechanical constraints regarding the orbit probably promoted the ecomorphological diversity acknowledged for this group, as well as its ecological niche differentiation in the terrestrial Triassic ecosystems in clades as lydekkerinids, trematosaurs, capitosaurs or metoposaurs.
dc.format.extent23 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
dc.subject.lcshFinite element method
dc.subject.lcshAnimal mechanics
dc.subject.otherecological niches
dc.subject.otherfinite element analysis
dc.subject.otherfossil record
dc.subject.otherTriassic period
dc.title3D computacional mechanics elucidate the evolutionary implications of orbit position and size diversity of early amphibians
dc.subject.lemacElements finits, Mètode dels
dc.subject.lemacMecànica computacional
dc.subject.lemacMecànica animal
dc.contributor.groupUniversitat Politècnica de Catalunya. LITEM - Laboratori per a la Innovació Tecnològica d'Estructures i Materials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/226506/EU/Synthesis of Systematic Resources/SYNTHESYS
local.citation.authorMarcé-Nogué, J.; Fortuny, J.; Sanchez, M.; Esteban-Trivigno, S.; Gil, L.; Galobart, À.
local.citation.publicationNamePLoS one

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