A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States

Detalhes bibliográficos
Autor(a) principal: Delcourt, Rafael
Data de Publicação: 2017
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Papéis Avulsos de Zoologia (Online)
Texto Completo: https://www.revistas.usp.br/paz/article/view/128370
Resumo: Daspletosaurus is a Campanian genus of Tyrannosauridae from North America. This genus occupied the same geographic area of Albertosaurus, but remains of Albertosaurus are more abundant than Daspletosaurus. Here is described a subadult maxilla (AMNH FARB 5477) of Daspletosaurus sp. from Montana (USA) and possibly from the Two Medicine Formation. The description is based on Carr (1999) that described cranial ontogenetic variations in tyrannosaurids. The maxilla belongs to the ontogenetic Stage 3 sensu Carr (1999), in which the maxilla is thick, the lateral surface of the bone well sculptured, and the maxillary fenestra is subcircular and well separated from the anterior edge of antorbital fossa. Possibly there were more than one species of Daspletosaurus and the locality of the here described subadult specimen suggests that Daspletosaurus species occurred more southern than Albertosaurus.
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spelling A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United StatesDaspletosaurusOntogenyNorth AmericaMontana.Daspletosaurus is a Campanian genus of Tyrannosauridae from North America. This genus occupied the same geographic area of Albertosaurus, but remains of Albertosaurus are more abundant than Daspletosaurus. Here is described a subadult maxilla (AMNH FARB 5477) of Daspletosaurus sp. from Montana (USA) and possibly from the Two Medicine Formation. The description is based on Carr (1999) that described cranial ontogenetic variations in tyrannosaurids. The maxilla belongs to the ontogenetic Stage 3 sensu Carr (1999), in which the maxilla is thick, the lateral surface of the bone well sculptured, and the maxillary fenestra is subcircular and well separated from the anterior edge of antorbital fossa. Possibly there were more than one species of Daspletosaurus and the locality of the here described subadult specimen suggests that Daspletosaurus species occurred more southern than Albertosaurus.Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).2017-03-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/xmlhttps://www.revistas.usp.br/paz/article/view/12837010.11606/0031-1049.2017.57.09Papéis Avulsos de Zoologia; v. 57 n. 9 (2017); 113-118Papéis Avulsos de Zoologia; Vol. 57 Núm. 9 (2017); 113-118Papéis Avulsos de Zoologia; Vol. 57 No. 9 (2017); 113-1181807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/128370/125243https://www.revistas.usp.br/paz/article/view/128370/152206Copyright (c) 2017 Papéis Avulsos de Zoologia (São Paulo)info:eu-repo/semantics/openAccessDelcourt, Rafael2017-04-04T12:53:21Zoai:revistas.usp.br:article/128370Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2023-01-12T16:41:49.198677Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
title A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
spellingShingle A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
Delcourt, Rafael
Daspletosaurus
Ontogeny
North America
Montana.
title_short A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
title_full A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
title_fullStr A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
title_full_unstemmed A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
title_sort A subadult maxilla of a Tyrannosauridae from the Two Medicine Formation, Montana, United States
author Delcourt, Rafael
author_facet Delcourt, Rafael
author_role author
dc.contributor.author.fl_str_mv Delcourt, Rafael
dc.subject.por.fl_str_mv Daspletosaurus
Ontogeny
North America
Montana.
topic Daspletosaurus
Ontogeny
North America
Montana.
description Daspletosaurus is a Campanian genus of Tyrannosauridae from North America. This genus occupied the same geographic area of Albertosaurus, but remains of Albertosaurus are more abundant than Daspletosaurus. Here is described a subadult maxilla (AMNH FARB 5477) of Daspletosaurus sp. from Montana (USA) and possibly from the Two Medicine Formation. The description is based on Carr (1999) that described cranial ontogenetic variations in tyrannosaurids. The maxilla belongs to the ontogenetic Stage 3 sensu Carr (1999), in which the maxilla is thick, the lateral surface of the bone well sculptured, and the maxillary fenestra is subcircular and well separated from the anterior edge of antorbital fossa. Possibly there were more than one species of Daspletosaurus and the locality of the here described subadult specimen suggests that Daspletosaurus species occurred more southern than Albertosaurus.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-16
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/128370
10.11606/0031-1049.2017.57.09
url https://www.revistas.usp.br/paz/article/view/128370
identifier_str_mv 10.11606/0031-1049.2017.57.09
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/paz/article/view/128370/125243
https://www.revistas.usp.br/paz/article/view/128370/152206
dc.rights.driver.fl_str_mv Copyright (c) 2017 Papéis Avulsos de Zoologia (São Paulo)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Papéis Avulsos de Zoologia (São Paulo)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/xml
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. 57 n. 9 (2017); 113-118
Papéis Avulsos de Zoologia; Vol. 57 Núm. 9 (2017); 113-118
Papéis Avulsos de Zoologia; Vol. 57 No. 9 (2017); 113-118
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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