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dc.contributor.author Herrera, Laura Yanina
dc.contributor.author Fernández, Marta Susana
dc.contributor.author Lamas, Susana Gisela
dc.contributor.author Campos, Lisandro
dc.contributor.author Talevi, Marianella
dc.contributor.author Brandoni, Zulma Nelida
dc.date.available 2018-12-17T19:21:01Z
dc.date.issued 2017-02
dc.identifier.citation Herrera, Laura Yanina; Fernández, Marta Susana; Lamas, Susana Gisela; Campos, Lisandro; Talevi, Marianella; et al.; 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; 2-2017; 247-255
dc.identifier.issn 1755-6910
dc.identifier.uri http://hdl.handle.net/11336/66599
dc.description.abstract Morphological 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.
dc.format application/pdf
dc.language.iso eng
dc.publisher Royal Society of Edinburgh
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject CROCODYLOMORPHA
dc.subject JURASSIC
dc.subject METRIORHYNCHIDS
dc.subject NEUQUÉN BASIN
dc.subject THALATTOSUCHIA
dc.subject VIVIPARITY
dc.subject.classification Meteorología y Ciencias Atmosféricas
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Morphology of the sacral region and reproductive strategies of Metriorhynchidae: A counter-inductive approach
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-10-23T20:51:16Z
dc.journal.volume 106
dc.journal.number 4
dc.journal.pagination 247-255
dc.journal.pais Reino Unido
dc.journal.ciudad Edimburgo
dc.description.fil Fil: Herrera, Laura Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Bayerische Staatssammlung für Paläontologie und Geologie; Alemania
dc.description.fil Fil: Fernández, Marta Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
dc.description.fil Fil: Lamas, Susana Gisela. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Paleontología. Cátedra de Lógica y Metodología de la Ciencia; Argentina
dc.description.fil Fil: Campos, Lisandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
dc.description.fil Fil: Talevi, Marianella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
dc.description.fil Fil: Brandoni, Zulma Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
dc.journal.title Earth and Environmental Science Transactions of the Royal Society of Edinburgh
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://bit.ly/2SOeZwK
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1017/S1755691016000165
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://bit.ly/2rICXOG
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