Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare

Little is known about the embryonic development and variation of the chondrocranium in Crocodylia and there are no works on any Caiman species. Due to the importance of cranial features in the systematics of this clade, investigating the development of the skull in embryonic stages is essential. In...

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Detalles Bibliográficos
Autor: Fernandez Blanco, María Victoria
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/118037
Acceso en línea:http://hdl.handle.net/11336/118037
Access Level:acceso abierto
Palabra clave:EMBRYONIC STAGES
LARYNGEAL CARTILAGES
MORPHOLOGICAL VARIATION
NEUROCRANIUM
ONTOGENY
SKULL
SPLANCHNOCRANIUM
TRACHEA
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
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spelling Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacareFernandez Blanco, María VictoriaEMBRYONIC STAGESLARYNGEAL CARTILAGESMORPHOLOGICAL VARIATIONNEUROCRANIUMONTOGENYSKULLSPLANCHNOCRANIUMTRACHEAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Little is known about the embryonic development and variation of the chondrocranium in Crocodylia and there are no works on any Caiman species. Due to the importance of cranial features in the systematics of this clade, investigating the development of the skull in embryonic stages is essential. In this study, we present for the first time the development of the cartilaginous skull of two extant Caiman species. Anatomical descriptions of the embryonic chondrocranium of Caiman latirostris and Caiman yacare were made, paying special attention to their inter- and intraspecific variation. For this purpose, pre-hatching ontogenetic cranial series of these two caiman species were prepared with a double staining and diaphanization technique. The main differences with other crocodylian species were observed in the palatoquadrate, and interspecific variation within the genus was recorded in the hyobranchial apparatus and larynx. Some characters may be distinctive of Caiman (posterior and ventral surface of the otic process of the palatoquadrate articulated with the dorsal process of the columella auris, and otic process articulated with the lateral wall of the auditory capsule), Alligatoridae (presence of an epiphanial foramen) or C. latirostris and C. yacare (Corpus hyoidei with different number and position of foramina and different shapes of its anterior contour and anterior and posterior notch, different degrees of broadening of the distal end of the Cornu branchiale I, and presence/absence of a notch in the posteroventral surface of the cricoid). Homologies of the elements belonging to the hyobranchial apparatus could not be confirmed. As in other tetrapods the trachea consists of incomplete cartilaginous rings. Morphological changes and dissimilarities found in this study are useful as a context to start studying phylogenetic constraints. Moreover, in a heterochronic context, variations may be involved.Fil: Fernandez Blanco, María Victoria. 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; ArgentinaWiley Blackwell Publishing, Inc2019-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/118037Fernandez Blanco, María Victoria; Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare; Wiley Blackwell Publishing, Inc; Journal of Anatomy; 234; 6; 6-2019; 899-9160021-8782CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/joa.12968info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/joa.12968info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:13:13Zoai:ri.conicet.gov.ar:11336/118037instacron: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:34982024-05-08 14:13:13.463CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
title Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
spellingShingle Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
Fernandez Blanco, María Victoria
EMBRYONIC STAGES
LARYNGEAL CARTILAGES
MORPHOLOGICAL VARIATION
NEUROCRANIUM
ONTOGENY
SKULL
SPLANCHNOCRANIUM
TRACHEA
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
title_full Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
title_fullStr Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
title_full_unstemmed Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
title_sort Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare
dc.creator.none.fl_str_mv Fernandez Blanco, María Victoria
author Fernandez Blanco, María Victoria
author_facet Fernandez Blanco, María Victoria
author_role author
dc.subject.none.fl_str_mv EMBRYONIC STAGES
LARYNGEAL CARTILAGES
MORPHOLOGICAL VARIATION
NEUROCRANIUM
ONTOGENY
SKULL
SPLANCHNOCRANIUM
TRACHEA
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic EMBRYONIC STAGES
LARYNGEAL CARTILAGES
MORPHOLOGICAL VARIATION
NEUROCRANIUM
ONTOGENY
SKULL
SPLANCHNOCRANIUM
TRACHEA
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description Little is known about the embryonic development and variation of the chondrocranium in Crocodylia and there are no works on any Caiman species. Due to the importance of cranial features in the systematics of this clade, investigating the development of the skull in embryonic stages is essential. In this study, we present for the first time the development of the cartilaginous skull of two extant Caiman species. Anatomical descriptions of the embryonic chondrocranium of Caiman latirostris and Caiman yacare were made, paying special attention to their inter- and intraspecific variation. For this purpose, pre-hatching ontogenetic cranial series of these two caiman species were prepared with a double staining and diaphanization technique. The main differences with other crocodylian species were observed in the palatoquadrate, and interspecific variation within the genus was recorded in the hyobranchial apparatus and larynx. Some characters may be distinctive of Caiman (posterior and ventral surface of the otic process of the palatoquadrate articulated with the dorsal process of the columella auris, and otic process articulated with the lateral wall of the auditory capsule), Alligatoridae (presence of an epiphanial foramen) or C. latirostris and C. yacare (Corpus hyoidei with different number and position of foramina and different shapes of its anterior contour and anterior and posterior notch, different degrees of broadening of the distal end of the Cornu branchiale I, and presence/absence of a notch in the posteroventral surface of the cricoid). Homologies of the elements belonging to the hyobranchial apparatus could not be confirmed. As in other tetrapods the trachea consists of incomplete cartilaginous rings. Morphological changes and dissimilarities found in this study are useful as a context to start studying phylogenetic constraints. Moreover, in a heterochronic context, variations may be involved.
publishDate 2019
dc.date.none.fl_str_mv 2019-06
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/11336/118037
Fernandez Blanco, María Victoria; Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare; Wiley Blackwell Publishing, Inc; Journal of Anatomy; 234; 6; 6-2019; 899-916
0021-8782
CONICET Digital
CONICET
url http://hdl.handle.net/11336/118037
identifier_str_mv Fernandez Blanco, María Victoria; Development of the chondrocranium of two caiman species, Caiman latirostris and Caiman yacare; Wiley Blackwell Publishing, Inc; Journal of Anatomy; 234; 6; 6-2019; 899-916
0021-8782
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/joa.12968
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/joa.12968
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
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score 15.812429

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