Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?

Detalhes bibliográficos
Autor(a) principal: Grellet-Tinner, Gerald
Data de Publicação: 2006
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Papéis Avulsos de Zoologia (Online)
Texto Completo: https://www.revistas.usp.br/paz/article/view/33680
Resumo: The origin of avian endothermy is a long-held question the answer of which cannot be provided by first level observations. Oological and reproductive characters have collectively provided a new source of data useful for phylogenetic analyses and paleobiological inferences. In addition, the observations of reproductive and oological evolutionary trends in saurischian dinosaurs lead to the interpretation that not only, the thermophysiology of these dinosaurs progressively became more avian-like but after re-examination allows to infer that deinonychosaurians represented here by three troodontids and one dromaeosaurid might already have developed an avian-like endothermy, thus predating the rise of avians. These results based on reproductive traits are independently corroborated by the discoveries of troodontid dinosaurs 1) in high latitudes, 2) covered with feathers in Chinese Lagerstätten, and recently 3) fossilized in a death pose identical to an avian sleeping posture.
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spelling Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians? endothermyaviantroodontid theropod dinosaursoologyreproductive behaviorsendotermiaavianotroodontídeo dinossauro terópodooologiacomortamentos reprodutivos The origin of avian endothermy is a long-held question the answer of which cannot be provided by first level observations. Oological and reproductive characters have collectively provided a new source of data useful for phylogenetic analyses and paleobiological inferences. In addition, the observations of reproductive and oological evolutionary trends in saurischian dinosaurs lead to the interpretation that not only, the thermophysiology of these dinosaurs progressively became more avian-like but after re-examination allows to infer that deinonychosaurians represented here by three troodontids and one dromaeosaurid might already have developed an avian-like endothermy, thus predating the rise of avians. These results based on reproductive traits are independently corroborated by the discoveries of troodontid dinosaurs 1) in high latitudes, 2) covered with feathers in Chinese Lagerstätten, and recently 3) fossilized in a death pose identical to an avian sleeping posture. A origem da endotermia nas aves é uma questão há muito discutida e sua resposta não pode ser encontrada através de observações superficiais. Caracteres oológicos e reprodutivos surgiram como uma nova fonte de dados relevantes tanto para análises filogenéticas quanto para inferências paleobiológicas dos dinossauros Saurischia. Além disso, as observações das tendências evolutivas reprodutivas e oológicas nos dinossauros Saurischia nos levam a inferir que não apenas, como anteriormente a termofisiologia deste grupo de dinossauros tornou-se progressivamente ornítica, mas um posterior reexame nos permitiu concluir que os deinonicossauros, representados aqui por dois troodontídeos e um dromeossaurídeo, provavelmente já haviam desenvolvido uma endotermia semelhante a das aves, anterior, portanto, ao seu surgimento. Estes resultados baseados em características reprodutivas são independentemente corroborados pela descoberta dos dinossauros troodontídeos 1) em altas latitudes, 2) recobertos com penas, no chinês Langerstäten, e, recentemente, 3) fossilizados em posição idêntica à postura de repouso das aves. Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).2006-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/paz/article/view/3368010.1590/S0031-10492006000100001Papéis Avulsos de Zoologia; v. 46 n. 1 (2006); 1-10 Papéis Avulsos de Zoologia; Vol. 46 Núm. 1 (2006); 1-10 Papéis Avulsos de Zoologia; Vol. 46 No. 1 (2006); 1-10 1807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/33680/36418Grellet-Tinner, Geraldinfo:eu-repo/semantics/openAccess2012-07-15T19:34:05Zoai:revistas.usp.br:article/33680Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2023-01-12T16:41:30.147485Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
title Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
spellingShingle Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
Grellet-Tinner, Gerald
endothermy
avian
troodontid theropod dinosaurs
oology
reproductive behaviors
endotermia
aviano
troodontídeo dinossauro terópodo
oologia
comortamentos reprodutivos
title_short Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
title_full Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
title_fullStr Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
title_full_unstemmed Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
title_sort Oology and the evolution of thermophysiology in saurischian dinosaurs: homeotherm and endotherm deinonychosaurians?
author Grellet-Tinner, Gerald
author_facet Grellet-Tinner, Gerald
author_role author
dc.contributor.author.fl_str_mv Grellet-Tinner, Gerald
dc.subject.por.fl_str_mv endothermy
avian
troodontid theropod dinosaurs
oology
reproductive behaviors
endotermia
aviano
troodontídeo dinossauro terópodo
oologia
comortamentos reprodutivos
topic endothermy
avian
troodontid theropod dinosaurs
oology
reproductive behaviors
endotermia
aviano
troodontídeo dinossauro terópodo
oologia
comortamentos reprodutivos
description The origin of avian endothermy is a long-held question the answer of which cannot be provided by first level observations. Oological and reproductive characters have collectively provided a new source of data useful for phylogenetic analyses and paleobiological inferences. In addition, the observations of reproductive and oological evolutionary trends in saurischian dinosaurs lead to the interpretation that not only, the thermophysiology of these dinosaurs progressively became more avian-like but after re-examination allows to infer that deinonychosaurians represented here by three troodontids and one dromaeosaurid might already have developed an avian-like endothermy, thus predating the rise of avians. These results based on reproductive traits are independently corroborated by the discoveries of troodontid dinosaurs 1) in high latitudes, 2) covered with feathers in Chinese Lagerstätten, and recently 3) fossilized in a death pose identical to an avian sleeping posture.
publishDate 2006
dc.date.none.fl_str_mv 2006-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/paz/article/view/33680
10.1590/S0031-10492006000100001
url https://www.revistas.usp.br/paz/article/view/33680
identifier_str_mv 10.1590/S0031-10492006000100001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/paz/article/view/33680/36418
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
dc.source.none.fl_str_mv Papéis Avulsos de Zoologia; v. 46 n. 1 (2006); 1-10
Papéis Avulsos de Zoologia; Vol. 46 Núm. 1 (2006); 1-10
Papéis Avulsos de Zoologia; Vol. 46 No. 1 (2006); 1-10
1807-0205
0031-1049
reponame:Papéis Avulsos de Zoologia (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Papéis Avulsos de Zoologia (Online)
collection Papéis Avulsos de Zoologia (Online)
repository.name.fl_str_mv Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv publicacaomz@usp.br ; einicker@usp.br
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