Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777 |
Resumo: | In order to determine the normal stages of formation in the sequence of ossification of the cranium of Podocnemis expansa in its various stages of development, embryos were collected starting on the 18th day of natural incubation and were subjected to bone diaphanization and staining. In the neurocranium, the basisphenoid and basioccipital bones present ossification centers in stage 19, the supraoccipital and opisthotic in stage 20, the exoccipital in stage 21, and lastly the prooptic in stage 24. Dermatocranium: the squamosal, pterygoid and maxilla are the first elements to begin the ossification process, which occurs in stage 16. However, ossification centers begin to appear in stage 17 in most of these bone elements, i.e., the frontal, jugal, postorbital, parietal, premaxilla and prefrontal, followed by the palatine and quadratojugal in stage 19 and lastly by the vomer in stage 25. The quadrate bone of the splanchnocranium ossifies in stage 23. The mandible and hyoid apparatus, the dentary, coronoid and supra-angular, show ossification centers in stage 16 and the branchial horn I in stage 17. The sequence and synchronization of ossification in P. expansa show similarities as well as differences when compared with other species of Testudines. |
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Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777ReptilesPodocnemididaealizarinossificationReptilesPodocnemididaealizarinossificationAnatomia AnimalIn order to determine the normal stages of formation in the sequence of ossification of the cranium of Podocnemis expansa in its various stages of development, embryos were collected starting on the 18th day of natural incubation and were subjected to bone diaphanization and staining. In the neurocranium, the basisphenoid and basioccipital bones present ossification centers in stage 19, the supraoccipital and opisthotic in stage 20, the exoccipital in stage 21, and lastly the prooptic in stage 24. Dermatocranium: the squamosal, pterygoid and maxilla are the first elements to begin the ossification process, which occurs in stage 16. However, ossification centers begin to appear in stage 17 in most of these bone elements, i.e., the frontal, jugal, postorbital, parietal, premaxilla and prefrontal, followed by the palatine and quadratojugal in stage 19 and lastly by the vomer in stage 25. The quadrate bone of the splanchnocranium ossifies in stage 23. The mandible and hyoid apparatus, the dentary, coronoid and supra-angular, show ossification centers in stage 16 and the branchial horn I in stage 17. The sequence and synchronization of ossification in P. expansa show similarities as well as differences when compared with other species of Testudines.In order to determine the normal stages of formation in the sequence of ossification of the cranium of Podocnemis expansa in its various stages of development, embryos were collected starting on the 18th day of natural incubation and were subjected to bone diaphanization and staining. In the neurocranium, the basisphenoid and basioccipital bones present ossification centers in stage 19, the supraoccipital and opisthotic in stage 20, the exoccipital in stage 21, and lastly the prooptic in stage 24. Dermatocranium: the squamosal, pterygoid and maxilla are the first elements to begin the ossification process, which occurs in stage 16. However, ossification centers begin to appear in stage 17 in most of these bone elements, i.e., the frontal, jugal, postorbital, parietal, premaxilla and prefrontal, followed by the palatine and quadratojugal in stage 19 and lastly by the vomer in stage 25. The quadrate bone of the splanchnocranium ossifies in stage 23. The mandible and hyoid apparatus, the dentary, coronoid and supra-angular, show ossification centers in stage 16 and the branchial horn I in stage 17. The sequence and synchronization of ossification in P. expansa show similarities as well as differences when compared with other species of Testudines.Universidade Estadual De Maringá2010-05-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionEstudos embriológicosapplication/pdfapplication/pdfimage/pjpegimage/pjpegimage/pjpeghttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/577710.4025/actascibiolsci.v32i2.5777Acta Scientiarum. Biological Sciences; Vol 32 No 2 (2010); 181-188Acta Scientiarum. Biological Sciences; v. 32 n. 2 (2010); 181-1881807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/5777Ahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/5777http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/751375140814http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/751375140815http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/751375140816Vieira, Lucélia GonçalvesSantos, André Luiz QuagliattoLima, Fabiano Camposinfo:eu-repo/semantics/openAccess2022-11-23T17:33:49Zoai:periodicos.uem.br/ojs:article/5777Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:49Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
title |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
spellingShingle |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 Vieira, Lucélia Gonçalves Reptiles Podocnemididae alizarin ossification Reptiles Podocnemididae alizarin ossification Anatomia Animal |
title_short |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
title_full |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
title_fullStr |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
title_full_unstemmed |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
title_sort |
Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777 |
author |
Vieira, Lucélia Gonçalves |
author_facet |
Vieira, Lucélia Gonçalves Santos, André Luiz Quagliatto Lima, Fabiano Campos |
author_role |
author |
author2 |
Santos, André Luiz Quagliatto Lima, Fabiano Campos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Vieira, Lucélia Gonçalves Santos, André Luiz Quagliatto Lima, Fabiano Campos |
dc.subject.por.fl_str_mv |
Reptiles Podocnemididae alizarin ossification Reptiles Podocnemididae alizarin ossification Anatomia Animal |
topic |
Reptiles Podocnemididae alizarin ossification Reptiles Podocnemididae alizarin ossification Anatomia Animal |
description |
In order to determine the normal stages of formation in the sequence of ossification of the cranium of Podocnemis expansa in its various stages of development, embryos were collected starting on the 18th day of natural incubation and were subjected to bone diaphanization and staining. In the neurocranium, the basisphenoid and basioccipital bones present ossification centers in stage 19, the supraoccipital and opisthotic in stage 20, the exoccipital in stage 21, and lastly the prooptic in stage 24. Dermatocranium: the squamosal, pterygoid and maxilla are the first elements to begin the ossification process, which occurs in stage 16. However, ossification centers begin to appear in stage 17 in most of these bone elements, i.e., the frontal, jugal, postorbital, parietal, premaxilla and prefrontal, followed by the palatine and quadratojugal in stage 19 and lastly by the vomer in stage 25. The quadrate bone of the splanchnocranium ossifies in stage 23. The mandible and hyoid apparatus, the dentary, coronoid and supra-angular, show ossification centers in stage 16 and the branchial horn I in stage 17. The sequence and synchronization of ossification in P. expansa show similarities as well as differences when compared with other species of Testudines. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-05-24 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Estudos embriológicos |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777 10.4025/actascibiolsci.v32i2.5777 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777 |
identifier_str_mv |
10.4025/actascibiolsci.v32i2.5777 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/5777A http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/5777 http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/751375140814 http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/751375140815 http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5777/751375140816 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf image/pjpeg image/pjpeg image/pjpeg |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 32 No 2 (2010); 181-188 Acta Scientiarum. Biological Sciences; v. 32 n. 2 (2010); 181-188 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
_version_ |
1799317394211995648 |