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dc.contributor.author
Bronzati Filho, Mario
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dc.contributor.author
Benson, Roger B. J.
dc.contributor.author
Evers, Serjoscha W.
dc.contributor.author
Ezcurra, Martin Daniel
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dc.contributor.author
Cabreira, Sergio F.
dc.contributor.author
Choiniere, Jonah
dc.contributor.author
Dollman, Kathleen N.
dc.contributor.author
Paulina Carabajal, Ariana
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dc.contributor.author
Radermacher, Viktor J.
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Roberto da Silva, Lucio
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Sobral, Gabriela
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Stocker, Michelle R.
dc.contributor.author
Witmer, Lawrence
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dc.contributor.author
Langer, Max C.
dc.contributor.author
Nesbitt, Sterling J.
dc.date.available
2022-10-13T12:18:15Z
dc.date.issued
2021-06
dc.identifier.citation
Bronzati Filho, Mario; Benson, Roger B. J.; Evers, Serjoscha W.; Ezcurra, Martin Daniel; Cabreira, Sergio F.; et al.; Deep evolutionary diversification of semicircular canals in archosaurs; Cell Press; Current Biology; 31; 12; 6-2021; 2520-2529.e6
dc.identifier.issn
0960-9822
dc.identifier.uri
http://hdl.handle.net/11336/172876
dc.description.abstract
Living archosaurs (birds and crocodylians) have disparate locomotor strategies that evolved since their divergence ∼250 mya. Little is known about the early evolution of the sensory structures that are coupled with these changes, mostly due to limited sampling of early fossils on key stem lineages. In particular, the morphology of the semicircular canals (SCCs) of the endosseous labyrinth has a long-hypothesized relationship with locomotion. Here, we analyze SCC shapes and sizes of living and extinct archosaurs encompassing diverse locomotor habits, including bipedal, semi-aquatic, and flying taxa. We test form-function hypotheses of the SCCs and chronicle their evolution during deep archosaurian divergences. We find that SCC shape is statistically associated with both flight and bipedalism. However, this shape variation is small and is more likely explained by changes in braincase geometry than by locomotor changes. We demonstrate high disparity of both shape and size among stem-archosaurs and a deep divergence of SCC morphologies at the bird-crocodylian split. Stem-crocodylians exhibit diverse morphologies, including aspects also present in birds and distinct from other reptiles. Therefore, extant crocodylian SCC morphologies do not reflect retention of a ?primitive? reptilian condition. Key aspects of bird SCC morphology that hitherto were interpreted as flight related, including large SCC size and enhanced sensitivity, appeared early on the bird stem-lineage in non-flying dinosaur precursors. Taken together, our results indicate a deep divergence of SCC traits at the bird?crocodylian split and that living archosaurs evolved from an early radiation with high sensory diversity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cell Press
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARCHOSAURS
dc.subject
BIRDS
dc.subject
CROCODYLIANS
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DINOSAURS
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EXTINCT
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LIVING
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LOCOMOTION
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PTEROSAURS
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SEMICIRCULAR CANALS
dc.subject
SENSORY SYSTEM
dc.subject.classification
Paleontología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Deep evolutionary diversification of semicircular canals in archosaurs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-13T11:00:28Z
dc.journal.volume
31
dc.journal.number
12
dc.journal.pagination
2520-2529.e6
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Bronzati Filho, Mario. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Benson, Roger B. J.. University of Oxford; Reino Unido
dc.description.fil
Fil: Evers, Serjoscha W.. University of Oxford; Reino Unido
dc.description.fil
Fil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Cabreira, Sergio F.. No especifíca;
dc.description.fil
Fil: Choiniere, Jonah. University of the Witwatersrand; Sudáfrica
dc.description.fil
Fil: Dollman, Kathleen N.. University of the Witwatersrand; Sudáfrica
dc.description.fil
Fil: Paulina Carabajal, Ariana. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina
dc.description.fil
Fil: Radermacher, Viktor J.. University of the Witwatersrand; Sudáfrica
dc.description.fil
Fil: Roberto da Silva, Lucio. No especifíca;
dc.description.fil
Fil: Sobral, Gabriela. Staatliches Museum Für Naturkunde Stuttgart; Alemania
dc.description.fil
Fil: Stocker, Michelle R.. No especifíca;
dc.description.fil
Fil: Witmer, Lawrence. No especifíca;
dc.description.fil
Fil: Langer, Max C.. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Nesbitt, Sterling J.. No especifíca;
dc.journal.title
Current Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cub.2021.03.086
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0960982221004590
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