Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures

Autores
Schwab, Julia A.; Young, Mark T.; Walsh, Stig A.; Witmer, Lawrence; Herrera, Laura Yanina; Timmons, Zena L.; Butler, Ian B.; Brusatte, Stephen L.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations of the head and the vestibule that detects linear acceleration and gravity. The vestibule often contains structures, known as the otoliths or ' ear stones'. Otoliths are present in many vertebrates and are particularly well known from the fossil record of fish, but surprisingly have not been described in detail in most tetrapods, living or extinct. Here, we present for the first time a survey of the otoliths of a broad sample of extant crocodylian species, based on computed tomography scans. We find that otoliths are present in numerous crocodylian species of different growth stages, and they continue to increase in size during ontogeny, with positive allometry compared to skull length. Our results confirm that otoliths are a common component of the crocodylian vestibular system, and suggest they play an important role in sensory detection. Otoliths are likely common, but overlooked, constituents of the inner ear in tetrapods, and a broader study of their size, shape and distribution promises insight into sensory abilities.
Fil: Schwab, Julia A.. University of Edinburgh; Reino Unido
Fil: Young, Mark T.. University of Edinburgh; Reino Unido
Fil: Walsh, Stig A.. University of Edinburgh; Reino Unido
Fil: Witmer, Lawrence. Ohio University; Estados Unidos
Fil: Herrera, Laura Yanina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Timmons, Zena L.. National Museum Of Scotland; Reino Unido
Fil: Butler, Ian B.. University of Edinburgh; Reino Unido
Fil: Brusatte, Stephen L.. University of Edinburgh; Reino Unido
Materia
CROCODYLIA
INNER EAR
ONTOGENY
OTOLITH
VESTIBULAR SYSTEM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/188054
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structuresSchwab, Julia A.Young, Mark T.Walsh, Stig A.Witmer, LawrenceHerrera, Laura YaninaTimmons, Zena L.Butler, Ian B.Brusatte, Stephen L.CROCODYLIAINNER EARONTOGENYOTOLITHVESTIBULAR SYSTEMhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations of the head and the vestibule that detects linear acceleration and gravity. The vestibule often contains structures, known as the otoliths or ' ear stones'. Otoliths are present in many vertebrates and are particularly well known from the fossil record of fish, but surprisingly have not been described in detail in most tetrapods, living or extinct. Here, we present for the first time a survey of the otoliths of a broad sample of extant crocodylian species, based on computed tomography scans. We find that otoliths are present in numerous crocodylian species of different growth stages, and they continue to increase in size during ontogeny, with positive allometry compared to skull length. Our results confirm that otoliths are a common component of the crocodylian vestibular system, and suggest they play an important role in sensory detection. Otoliths are likely common, but overlooked, constituents of the inner ear in tetrapods, and a broader study of their size, shape and distribution promises insight into sensory abilities.Fil: Schwab, Julia A.. University of Edinburgh; Reino UnidoFil: Young, Mark T.. University of Edinburgh; Reino UnidoFil: Walsh, Stig A.. University of Edinburgh; Reino UnidoFil: Witmer, Lawrence. Ohio University; Estados UnidosFil: Herrera, Laura Yanina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Timmons, Zena L.. National Museum Of Scotland; Reino UnidoFil: Butler, Ian B.. University of Edinburgh; Reino UnidoFil: Brusatte, Stephen L.. University of Edinburgh; Reino UnidoThe Royal Society2022-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/188054Schwab, Julia A.; Young, Mark T.; Walsh, Stig A.; Witmer, Lawrence; Herrera, Laura Yanina; et al.; Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures; The Royal Society; Royal Society Open Science; 9; 3; 3-2022; 1-92054-5703CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rsos.211633info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.211633info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:20:29Zoai:ri.conicet.gov.ar:11336/188054instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:20:29.449CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
title Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
spellingShingle Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
Schwab, Julia A.
CROCODYLIA
INNER EAR
ONTOGENY
OTOLITH
VESTIBULAR SYSTEM
title_short Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
title_full Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
title_fullStr Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
title_full_unstemmed Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
title_sort Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures
dc.creator.none.fl_str_mv Schwab, Julia A.
Young, Mark T.
Walsh, Stig A.
Witmer, Lawrence
Herrera, Laura Yanina
Timmons, Zena L.
Butler, Ian B.
Brusatte, Stephen L.
author Schwab, Julia A.
author_facet Schwab, Julia A.
Young, Mark T.
Walsh, Stig A.
Witmer, Lawrence
Herrera, Laura Yanina
Timmons, Zena L.
Butler, Ian B.
Brusatte, Stephen L.
author_role author
author2 Young, Mark T.
Walsh, Stig A.
Witmer, Lawrence
Herrera, Laura Yanina
Timmons, Zena L.
Butler, Ian B.
Brusatte, Stephen L.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CROCODYLIA
INNER EAR
ONTOGENY
OTOLITH
VESTIBULAR SYSTEM
topic CROCODYLIA
INNER EAR
ONTOGENY
OTOLITH
VESTIBULAR SYSTEM
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations of the head and the vestibule that detects linear acceleration and gravity. The vestibule often contains structures, known as the otoliths or ' ear stones'. Otoliths are present in many vertebrates and are particularly well known from the fossil record of fish, but surprisingly have not been described in detail in most tetrapods, living or extinct. Here, we present for the first time a survey of the otoliths of a broad sample of extant crocodylian species, based on computed tomography scans. We find that otoliths are present in numerous crocodylian species of different growth stages, and they continue to increase in size during ontogeny, with positive allometry compared to skull length. Our results confirm that otoliths are a common component of the crocodylian vestibular system, and suggest they play an important role in sensory detection. Otoliths are likely common, but overlooked, constituents of the inner ear in tetrapods, and a broader study of their size, shape and distribution promises insight into sensory abilities.
Fil: Schwab, Julia A.. University of Edinburgh; Reino Unido
Fil: Young, Mark T.. University of Edinburgh; Reino Unido
Fil: Walsh, Stig A.. University of Edinburgh; Reino Unido
Fil: Witmer, Lawrence. Ohio University; Estados Unidos
Fil: Herrera, Laura Yanina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Timmons, Zena L.. National Museum Of Scotland; Reino Unido
Fil: Butler, Ian B.. University of Edinburgh; Reino Unido
Fil: Brusatte, Stephen L.. University of Edinburgh; Reino Unido
description The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations of the head and the vestibule that detects linear acceleration and gravity. The vestibule often contains structures, known as the otoliths or ' ear stones'. Otoliths are present in many vertebrates and are particularly well known from the fossil record of fish, but surprisingly have not been described in detail in most tetrapods, living or extinct. Here, we present for the first time a survey of the otoliths of a broad sample of extant crocodylian species, based on computed tomography scans. We find that otoliths are present in numerous crocodylian species of different growth stages, and they continue to increase in size during ontogeny, with positive allometry compared to skull length. Our results confirm that otoliths are a common component of the crocodylian vestibular system, and suggest they play an important role in sensory detection. Otoliths are likely common, but overlooked, constituents of the inner ear in tetrapods, and a broader study of their size, shape and distribution promises insight into sensory abilities.
publishDate 2022
dc.date.none.fl_str_mv 2022-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/188054
Schwab, Julia A.; Young, Mark T.; Walsh, Stig A.; Witmer, Lawrence; Herrera, Laura Yanina; et al.; Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures; The Royal Society; Royal Society Open Science; 9; 3; 3-2022; 1-9
2054-5703
CONICET Digital
CONICET
url http://hdl.handle.net/11336/188054
identifier_str_mv Schwab, Julia A.; Young, Mark T.; Walsh, Stig A.; Witmer, Lawrence; Herrera, Laura Yanina; et al.; Ear stones in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures; The Royal Society; Royal Society Open Science; 9; 3; 3-2022; 1-9
2054-5703
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://royalsocietypublishing.org/doi/10.1098/rsos.211633
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.211633
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Royal Society
publisher.none.fl_str_mv The Royal Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781696415891456
score 12.982451

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