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dc.contributor.authorHerrera, Laura Y.-
dc.contributor.authorFernández, Marta S.-
dc.contributor.authorLamas, Susana G.-
dc.contributor.authorCampos, Lisandro-
dc.contributor.authorTalevi, Marianella-
dc.contributor.authorBrandoni de Gasparini, Zulma N.-
dc.date.accessioned2020-06-02T12:55:18Z-
dc.date.available2020-06-02T12:55:18Z-
dc.date.issued2017-02-
dc.identifier.citationHerrera, Laura Y., Fernández, Marta S., Lamas, Susana G., Campos, Lisandro., Talevi, Marianella y et al. (2017) Morphology of the sacral region and reproductive strategies of Metriorhynchidae: A counter-inductive approach. Royal Society of Edinburgh; Earth and Environmental Science Transactions of the Royal Society of Edinburgh; 106 (4); 247-255es_ES
dc.identifier.issn1755-6910es_ES
dc.identifier.urihttp://sedici.unlp.edu.ar/handle/10915/87433-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/5185-
dc.description.abstractMorphological and physiological features indicate Metriorhynchidae as the only group of crocodylomorphs with a pelagic lifestyle. Some of these features have evolved convergently in several clades of tetrapods secondarily adapted to aquatic life. One striking feature of metriorhynchids as compared to other crocodylomorphs is the morphology of the pelvic region (i.e., ventrally deflected sacral ribs and reduced pelvic girdle), which increases significantly the depth of this region. This morphology, as a whole, resembles that of other viviparous Mesozoic marine reptiles not phylogenetically related to metriorhynchids. We tested two alternative hypotheses of reproductive strategies in this clade: oviparity vs. viviparity. Given the lack of direct evidence supporting one or the other, we explored the use of evidence that may disconfirm either of these hypotheses. Using this counter-inductive approach, we found no cases contradicting viviparity in metriorhynchids, except for their phylogenetic position as archosaurs. A survey of reproductive modes amongst amniotes depicts the evolutionary plasticity of the transition to viviparity, and a widespread occurrence among tetrapods secondarily adapted to a marine life. Assuming oviparity for metriorhynchids implies egg-laying out of the water. However, their postcranial morphology (i.e., features of fore and hind limbs, pelvic girdle, and tail) contradicts this possibility. In this context, we rejected oviparity for metriorhynchids.es_ES
dc.format.extentp. 247-255es_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.publisherRoyal Society of Edinburghes_ES
dc.titleMorphology of the sacral region and reproductive strategies of Metriorhynchidae: a counter-inductive approaches_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Herrera, Laura Y. Bayerische Staatssammlung für Paläontologie und Geologie. Munich, Alemania.es_ES
dc.description.filiationFil: Fernández, Marta S. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Unidades de Investigación Anexo Museo. División Paleontología Vertebrados. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Lamas, Susana Gisela. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Paleontología. Cátedra de Lógica y Metodología de la Ciencia. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Campos, Lisandro. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Unidades de Investigación Anexo Museo. División Paleontología Vertebrados. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Talevi, Marianella. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.es_ES
dc.description.filiationFil: Brandoni de Gasparini, Zulma N. UniversidadNacional de La Plata. Facultad de Ciencias Naturales y Museo. Museo de La Plata. División Paleontología Vertebrados. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Herrera, Laura Y. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Herrera, Laura Y. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Fernández, Marta S. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Talevi, Marianella. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Brandoni de Gasparini, Zulma N. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.subject.keywordCrocodylomorphaes_ES
dc.subject.keywordJurassices_ES
dc.subject.keywordMetriorhynchidses_ES
dc.subject.keywordNeuquén Basines_ES
dc.subject.keywordThalattosuchiaes_ES
dc.subject.keywordViviparityes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología.es_ES
dc.relation.journalissue106 (4)es_ES
dc.description.reviewtruees_ES
dc.description.resumenMorphological and physiological features indicate Metriorhynchidae as the only group of crocodylomorphs with a pelagic lifestyle. Some of these features have evolved convergently in several clades of tetrapods secondarily adapted to aquatic life. One striking feature of metriorhynchids as compared to other crocodylomorphs is the morphology of the pelvic region (i.e., ventrally deflected sacral ribs and reduced pelvic girdle), which increases significantly the depth of this region. This morphology, as a whole, resembles that of other viviparous Mesozoic marine reptiles not phylogenetically related to metriorhynchids. We tested two alternative hypotheses of reproductive strategies in this clade: oviparity vs. viviparity. Given the lack of direct evidence supporting one or the other, we explored the use of evidence that may disconfirm either of these hypotheses. Using this counter-inductive approach, we found no cases contradicting viviparity in metriorhynchids, except for their phylogenetic position as archosaurs. A survey of reproductive modes amongst amniotes depicts the evolutionary plasticity of the transition to viviparity, and a widespread occurrence among tetrapods secondarily adapted to a marine life. Assuming oviparity for metriorhynchids implies egg-laying out of the water. However, their postcranial morphology (i.e., features of fore and hind limbs, pelvic girdle, and tail) contradicts this possibility. In this context, we rejected oviparity for metriorhynchids.es_ES
dc.identifier.doihttps://doi.org/10.1017/S1755691016000165-
dc.relation.journalTitleEarth and Environmental Science Transactions of the Royal Society of Edinburghes_ES
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