The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs

Autores
Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; Nesbitt, Sterling J.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Osteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei are examined to infer their palaeobiology, such as histogenesis, age estimation at death, development of external sculpturing, and palaeoecology. Doswelliid osteoderms have a trilaminar structure: two cortices of compact bone (external and basal) that enclose an internal core of cancellous bone. In contrast, Chanaresuchus bonapartei osteoderms are composed of entirely compact bone. The external ornamentation of Doswellia kaltenbachi is primarily formed and maintained by preferential bone growth. Conversely, a complex pattern of resorption and redeposition process is inferred in Archeopelta arborensis and Tarjadia ruthae. Vancleavea campi exhibits the highest degree of variation among doswelliids in its histogenesis (metaplasia), density and arrangement of vascularization and lack of sculpturing. The relatively high degree of compactness in the osteoderms of all the examined taxa is congruent with an aquatic or semi-aquatic lifestyle. In general, the osteoderm histology of doswelliids more closely resembles that of phytosaurs and pseudosuchians than that of proterochampsids.
Fil: Ponce, Denis Alejandro. Inst.invest.paleobiol. y Geol. (iipg), (unrn) - Conicet; Argentina
Fil: Cerda, Ignacio Alejandro. Universidad Nacional de Río Negro; Argentina
Fil: Desojo, Julia Brenda. Div.paleont.vert., Fac.cs.nat. y Museo, Unlp; Argentina
Fil: Nesbitt, Sterling J.. Depart.geosc., Virginia Tech, Blacksburg, Virginia, Usa; Estados Unidos
Materia
Archosauria
Doswelliidae
Proterochampsidae
Histology
Palaeoecology
Microanatomy
Triassic
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/66881
Acceder
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spelling The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaursPonce, Denis AlejandroCerda, Ignacio AlejandroDesojo, Julia BrendaNesbitt, Sterling J.ArchosauriaDoswelliidaeProterochampsidaeHistologyPalaeoecologyMicroanatomyTriassichttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Osteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei are examined to infer their palaeobiology, such as histogenesis, age estimation at death, development of external sculpturing, and palaeoecology. Doswelliid osteoderms have a trilaminar structure: two cortices of compact bone (external and basal) that enclose an internal core of cancellous bone. In contrast, Chanaresuchus bonapartei osteoderms are composed of entirely compact bone. The external ornamentation of Doswellia kaltenbachi is primarily formed and maintained by preferential bone growth. Conversely, a complex pattern of resorption and redeposition process is inferred in Archeopelta arborensis and Tarjadia ruthae. Vancleavea campi exhibits the highest degree of variation among doswelliids in its histogenesis (metaplasia), density and arrangement of vascularization and lack of sculpturing. The relatively high degree of compactness in the osteoderms of all the examined taxa is congruent with an aquatic or semi-aquatic lifestyle. In general, the osteoderm histology of doswelliids more closely resembles that of phytosaurs and pseudosuchians than that of proterochampsids.Fil: Ponce, Denis Alejandro. Inst.invest.paleobiol. y Geol. (iipg), (unrn) - Conicet; ArgentinaFil: Cerda, Ignacio Alejandro. Universidad Nacional de Río Negro; ArgentinaFil: Desojo, Julia Brenda. Div.paleont.vert., Fac.cs.nat. y Museo, Unlp; ArgentinaFil: Nesbitt, Sterling J.. Depart.geosc., Virginia Tech, Blacksburg, Virginia, Usa; Estados UnidosPolish Academy of Sciences. Institute of Paleobiology2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66881Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; Nesbitt, Sterling J.; The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 62; 4; 10-2017; 819-8310567-79201732-2421CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.app.pan.pl/article/item/app003812017.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.4202/app.00381.2017info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:17Zoai:ri.conicet.gov.ar:11336/66881instacron: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:34982025-09-03 10:08:17.925CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
title The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
spellingShingle The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
Ponce, Denis Alejandro
Archosauria
Doswelliidae
Proterochampsidae
Histology
Palaeoecology
Microanatomy
Triassic
title_short The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
title_full The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
title_fullStr The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
title_full_unstemmed The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
title_sort The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs
dc.creator.none.fl_str_mv Ponce, Denis Alejandro
Cerda, Ignacio Alejandro
Desojo, Julia Brenda
Nesbitt, Sterling J.
author Ponce, Denis Alejandro
author_facet Ponce, Denis Alejandro
Cerda, Ignacio Alejandro
Desojo, Julia Brenda
Nesbitt, Sterling J.
author_role author
author2 Cerda, Ignacio Alejandro
Desojo, Julia Brenda
Nesbitt, Sterling J.
author2_role author
author
author
dc.subject.none.fl_str_mv Archosauria
Doswelliidae
Proterochampsidae
Histology
Palaeoecology
Microanatomy
Triassic
topic Archosauria
Doswelliidae
Proterochampsidae
Histology
Palaeoecology
Microanatomy
Triassic
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Osteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei are examined to infer their palaeobiology, such as histogenesis, age estimation at death, development of external sculpturing, and palaeoecology. Doswelliid osteoderms have a trilaminar structure: two cortices of compact bone (external and basal) that enclose an internal core of cancellous bone. In contrast, Chanaresuchus bonapartei osteoderms are composed of entirely compact bone. The external ornamentation of Doswellia kaltenbachi is primarily formed and maintained by preferential bone growth. Conversely, a complex pattern of resorption and redeposition process is inferred in Archeopelta arborensis and Tarjadia ruthae. Vancleavea campi exhibits the highest degree of variation among doswelliids in its histogenesis (metaplasia), density and arrangement of vascularization and lack of sculpturing. The relatively high degree of compactness in the osteoderms of all the examined taxa is congruent with an aquatic or semi-aquatic lifestyle. In general, the osteoderm histology of doswelliids more closely resembles that of phytosaurs and pseudosuchians than that of proterochampsids.
Fil: Ponce, Denis Alejandro. Inst.invest.paleobiol. y Geol. (iipg), (unrn) - Conicet; Argentina
Fil: Cerda, Ignacio Alejandro. Universidad Nacional de Río Negro; Argentina
Fil: Desojo, Julia Brenda. Div.paleont.vert., Fac.cs.nat. y Museo, Unlp; Argentina
Fil: Nesbitt, Sterling J.. Depart.geosc., Virginia Tech, Blacksburg, Virginia, Usa; Estados Unidos
description Osteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei are examined to infer their palaeobiology, such as histogenesis, age estimation at death, development of external sculpturing, and palaeoecology. Doswelliid osteoderms have a trilaminar structure: two cortices of compact bone (external and basal) that enclose an internal core of cancellous bone. In contrast, Chanaresuchus bonapartei osteoderms are composed of entirely compact bone. The external ornamentation of Doswellia kaltenbachi is primarily formed and maintained by preferential bone growth. Conversely, a complex pattern of resorption and redeposition process is inferred in Archeopelta arborensis and Tarjadia ruthae. Vancleavea campi exhibits the highest degree of variation among doswelliids in its histogenesis (metaplasia), density and arrangement of vascularization and lack of sculpturing. The relatively high degree of compactness in the osteoderms of all the examined taxa is congruent with an aquatic or semi-aquatic lifestyle. In general, the osteoderm histology of doswelliids more closely resembles that of phytosaurs and pseudosuchians than that of proterochampsids.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
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/11336/66881
Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; Nesbitt, Sterling J.; The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 62; 4; 10-2017; 819-831
0567-7920
1732-2421
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66881
identifier_str_mv Ponce, Denis Alejandro; Cerda, Ignacio Alejandro; Desojo, Julia Brenda; Nesbitt, Sterling J.; The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 62; 4; 10-2017; 819-831
0567-7920
1732-2421
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.app.pan.pl/article/item/app003812017.html
info:eu-repo/semantics/altIdentifier/doi/10.4202/app.00381.2017
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Polish Academy of Sciences. Institute of Paleobiology
publisher.none.fl_str_mv Polish Academy of Sciences. Institute of Paleobiology
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
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score 13.13397

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