Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy
- Autores
- Pacheco, Cristian P.; Martinelli, Agustín Guillermo; Pavanatto, Ane E. B.; Soares, Marina; Silva, Sérgio Dias da
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Probainognathian cynodonts are conspicuous elements of the Assemblage Zones of the Triassic Santa Maria Supersequence in southern Brazil. Within this group, the derived clade Prozostrodontia, in which the crown group Mammalia is included, is taxonomic diverse in the Hyperodapedon and Riograndia AZs. We describe here the second known specimen (CAPPA/UFSM 0123) of Prozostrodon brasiliensis, until now only represented by its holotype. CAPPA/UFSM 0123 includes a right dentary with dentition. As in the holotype of P. brasiliensis, it has four lower incisors, pc4 with conspicuous cusp a, and small cusps b, c, and d, pc5-pc6 of ‘triconodont’ type with cusps a > c > b > d, with continuous lingual cingulum bearing up to six small discrete cusps, length of the lower tooth row more than half the length of the dentary, and relatively deep horizontal ramus of the dentary. The new specimen is about 25% smaller than the holotype and there is not a diastema between the canine and postcanine teeth, indicating its juvenile condition. Based on both known specimens of P. brasiliensis, a discussion on tooth replacement is presented, showing that the adult individual has more postcanine tooth morphotypes than the juvenile one.
Fil: Pacheco, Cristian P.. Universidade Federal de Santa Maria; Brasil
Fil: Martinelli, Agustín Guillermo. Universidade Federal do Rio Grande do Sul; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pavanatto, Ane E. B.. Universidade Federal de Santa Maria; Brasil
Fil: Soares, Marina B.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Dias-da-Silva, Sérgio. Universidade Federal de Santa Maria; Brasil - Materia
-
CYNODONTIA
HYPERODAPEDON AZ
LOWER JAW
PROZOSTRODONTIA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/94044
Ver los metadatos del registro completo
id |
CONICETDig_29afd2360689feafe2e6239f67eb736a |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/94044 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomyPacheco, Cristian P.Martinelli, Agustín GuillermoPavanatto, Ane E. B.Soares, MarinaSilva, Sérgio Dias daCYNODONTIAHYPERODAPEDON AZLOWER JAWPROZOSTRODONTIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Probainognathian cynodonts are conspicuous elements of the Assemblage Zones of the Triassic Santa Maria Supersequence in southern Brazil. Within this group, the derived clade Prozostrodontia, in which the crown group Mammalia is included, is taxonomic diverse in the Hyperodapedon and Riograndia AZs. We describe here the second known specimen (CAPPA/UFSM 0123) of Prozostrodon brasiliensis, until now only represented by its holotype. CAPPA/UFSM 0123 includes a right dentary with dentition. As in the holotype of P. brasiliensis, it has four lower incisors, pc4 with conspicuous cusp a, and small cusps b, c, and d, pc5-pc6 of ‘triconodont’ type with cusps a > c > b > d, with continuous lingual cingulum bearing up to six small discrete cusps, length of the lower tooth row more than half the length of the dentary, and relatively deep horizontal ramus of the dentary. The new specimen is about 25% smaller than the holotype and there is not a diastema between the canine and postcanine teeth, indicating its juvenile condition. Based on both known specimens of P. brasiliensis, a discussion on tooth replacement is presented, showing that the adult individual has more postcanine tooth morphotypes than the juvenile one.Fil: Pacheco, Cristian P.. Universidade Federal de Santa Maria; BrasilFil: Martinelli, Agustín Guillermo. Universidade Federal do Rio Grande do Sul; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pavanatto, Ane E. B.. Universidade Federal de Santa Maria; BrasilFil: Soares, Marina B.. Universidade Federal do Rio Grande do Sul; BrasilFil: Dias-da-Silva, Sérgio. Universidade Federal de Santa Maria; BrasilTaylor & Francis Ltd2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94044Pacheco, Cristian P.; Martinelli, Agustín Guillermo; Pavanatto, Ane E. B.; Soares, Marina; Silva, Sérgio Dias da; Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy; Taylor & Francis Ltd; Historical Biology; 30; 4; 5-2018; 475-4850891-29631029-2381CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/08912963.2017.1292423info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/08912963.2017.1292423info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:02:16Zoai:ri.conicet.gov.ar:11336/94044instacron: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:34982025-09-29 10:02:17.1CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
title |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
spellingShingle |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy Pacheco, Cristian P. CYNODONTIA HYPERODAPEDON AZ LOWER JAW PROZOSTRODONTIA |
title_short |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
title_full |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
title_fullStr |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
title_full_unstemmed |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
title_sort |
Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy |
dc.creator.none.fl_str_mv |
Pacheco, Cristian P. Martinelli, Agustín Guillermo Pavanatto, Ane E. B. Soares, Marina Silva, Sérgio Dias da |
author |
Pacheco, Cristian P. |
author_facet |
Pacheco, Cristian P. Martinelli, Agustín Guillermo Pavanatto, Ane E. B. Soares, Marina Silva, Sérgio Dias da |
author_role |
author |
author2 |
Martinelli, Agustín Guillermo Pavanatto, Ane E. B. Soares, Marina Silva, Sérgio Dias da |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
CYNODONTIA HYPERODAPEDON AZ LOWER JAW PROZOSTRODONTIA |
topic |
CYNODONTIA HYPERODAPEDON AZ LOWER JAW PROZOSTRODONTIA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Probainognathian cynodonts are conspicuous elements of the Assemblage Zones of the Triassic Santa Maria Supersequence in southern Brazil. Within this group, the derived clade Prozostrodontia, in which the crown group Mammalia is included, is taxonomic diverse in the Hyperodapedon and Riograndia AZs. We describe here the second known specimen (CAPPA/UFSM 0123) of Prozostrodon brasiliensis, until now only represented by its holotype. CAPPA/UFSM 0123 includes a right dentary with dentition. As in the holotype of P. brasiliensis, it has four lower incisors, pc4 with conspicuous cusp a, and small cusps b, c, and d, pc5-pc6 of ‘triconodont’ type with cusps a > c > b > d, with continuous lingual cingulum bearing up to six small discrete cusps, length of the lower tooth row more than half the length of the dentary, and relatively deep horizontal ramus of the dentary. The new specimen is about 25% smaller than the holotype and there is not a diastema between the canine and postcanine teeth, indicating its juvenile condition. Based on both known specimens of P. brasiliensis, a discussion on tooth replacement is presented, showing that the adult individual has more postcanine tooth morphotypes than the juvenile one. Fil: Pacheco, Cristian P.. Universidade Federal de Santa Maria; Brasil Fil: Martinelli, Agustín Guillermo. Universidade Federal do Rio Grande do Sul; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pavanatto, Ane E. B.. Universidade Federal de Santa Maria; Brasil Fil: Soares, Marina B.. Universidade Federal do Rio Grande do Sul; Brasil Fil: Dias-da-Silva, Sérgio. Universidade Federal de Santa Maria; Brasil |
description |
Probainognathian cynodonts are conspicuous elements of the Assemblage Zones of the Triassic Santa Maria Supersequence in southern Brazil. Within this group, the derived clade Prozostrodontia, in which the crown group Mammalia is included, is taxonomic diverse in the Hyperodapedon and Riograndia AZs. We describe here the second known specimen (CAPPA/UFSM 0123) of Prozostrodon brasiliensis, until now only represented by its holotype. CAPPA/UFSM 0123 includes a right dentary with dentition. As in the holotype of P. brasiliensis, it has four lower incisors, pc4 with conspicuous cusp a, and small cusps b, c, and d, pc5-pc6 of ‘triconodont’ type with cusps a > c > b > d, with continuous lingual cingulum bearing up to six small discrete cusps, length of the lower tooth row more than half the length of the dentary, and relatively deep horizontal ramus of the dentary. The new specimen is about 25% smaller than the holotype and there is not a diastema between the canine and postcanine teeth, indicating its juvenile condition. Based on both known specimens of P. brasiliensis, a discussion on tooth replacement is presented, showing that the adult individual has more postcanine tooth morphotypes than the juvenile one. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05 |
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/11336/94044 Pacheco, Cristian P.; Martinelli, Agustín Guillermo; Pavanatto, Ane E. B.; Soares, Marina; Silva, Sérgio Dias da; Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy; Taylor & Francis Ltd; Historical Biology; 30; 4; 5-2018; 475-485 0891-2963 1029-2381 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/94044 |
identifier_str_mv |
Pacheco, Cristian P.; Martinelli, Agustín Guillermo; Pavanatto, Ane E. B.; Soares, Marina; Silva, Sérgio Dias da; Prozostrodon brasiliensis, a probainognathian cynodont from the Late Triassic of Brazil: second record and improvements on its dental anatomy; Taylor & Francis Ltd; Historical Biology; 30; 4; 5-2018; 475-485 0891-2963 1029-2381 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1080/08912963.2017.1292423 info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/08912963.2017.1292423 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
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 |
_version_ |
1844613825316257792 |
score |
13.070432 |