An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas

Autores
Rougier, Guillermo Walter; Gaetano, Leandro Carlos; Macovicky, Peter J.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The first remains of Early Cretaceous mammals in the Antlers Formation, Trinity Group, Texas, were described as a new genus and species of triconodont, Astroconodon denisoni. Mammals from the Antlers Formation, both in Texas and Oklahoma, include, in addition to Astroconodon, basal multituberculates, a spalcotheroid, a variety of small tribosphenic mammals basal to Theria, and arguably primitive members of both Metatheria and Eutheria. A small semi-articulated skeleton was also found at Mart Frye?s Farm, about 4.5 miles from the center of Decatur, TX, in the sandstones of the Antler Formation, Trinity Group. Mart Frye?s farm is about 2 miles from Greenwood Canyon, the type locality of Astroconodon. The skeleton includes ten dorsal vertebrae (some of them articulated to ribs), partial right pelvis, epipubic bone and partial right leg including femur and proximal fragments of tibia and fibula. No dental elements were found. All of the bones are deficiently preserved and the articular surfaces appear not to be completely ossified suggesting a sub-adult individual. The ilium, pubis and ischium are relatively gracile, while the femur, which has suffered much compression, is short and stout, with poorly differentiated laminar trocanters and neck. The incomplete femoral head would be oval and only slightly medially inflected. In these features, the femur resembles those of recently described triconodonts from the Jurassic and Cretaceous of China and tritylodonts. The pelvis (ilium plus ischium) is approximately 40mm long and the femur slightly longer. This is a large specimen for a Mesozoic mammal and does not agree in size with any of the dentally known mammals from the Antlers Fm. The similarly aged Cloverly Fm. from central USA, has yielded a tricondont similar to Astroconodon and, among other forms, the larger gobiconodontid Gobiconodon ostromi. The femur and tibia of the skeleton presented here are unlike that of Gobiconodon. We regard this partial skeleton as representing either a yet unknown mammal, probably a triconodont, or more likely a tritylodont.
Fil: Rougier, Guillermo Walter. University of Louisville; Estados Unidos
Fil: Gaetano, Leandro Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Macovicky, Peter J.. Field Museum of National History; Estados Unidos
71th Meeting Society of Vertebrate Paleontology
Las Vegas
Estados Unidos
Society of Vertebrate Paleontology
Materia
CYNODONT
EARLY CRETACEOUS
TEXAS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/221919

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spelling An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of TexasRougier, Guillermo WalterGaetano, Leandro CarlosMacovicky, Peter J.CYNODONTEARLY CRETACEOUSTEXAShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The first remains of Early Cretaceous mammals in the Antlers Formation, Trinity Group, Texas, were described as a new genus and species of triconodont, Astroconodon denisoni. Mammals from the Antlers Formation, both in Texas and Oklahoma, include, in addition to Astroconodon, basal multituberculates, a spalcotheroid, a variety of small tribosphenic mammals basal to Theria, and arguably primitive members of both Metatheria and Eutheria. A small semi-articulated skeleton was also found at Mart Frye?s Farm, about 4.5 miles from the center of Decatur, TX, in the sandstones of the Antler Formation, Trinity Group. Mart Frye?s farm is about 2 miles from Greenwood Canyon, the type locality of Astroconodon. The skeleton includes ten dorsal vertebrae (some of them articulated to ribs), partial right pelvis, epipubic bone and partial right leg including femur and proximal fragments of tibia and fibula. No dental elements were found. All of the bones are deficiently preserved and the articular surfaces appear not to be completely ossified suggesting a sub-adult individual. The ilium, pubis and ischium are relatively gracile, while the femur, which has suffered much compression, is short and stout, with poorly differentiated laminar trocanters and neck. The incomplete femoral head would be oval and only slightly medially inflected. In these features, the femur resembles those of recently described triconodonts from the Jurassic and Cretaceous of China and tritylodonts. The pelvis (ilium plus ischium) is approximately 40mm long and the femur slightly longer. This is a large specimen for a Mesozoic mammal and does not agree in size with any of the dentally known mammals from the Antlers Fm. The similarly aged Cloverly Fm. from central USA, has yielded a tricondont similar to Astroconodon and, among other forms, the larger gobiconodontid Gobiconodon ostromi. The femur and tibia of the skeleton presented here are unlike that of Gobiconodon. We regard this partial skeleton as representing either a yet unknown mammal, probably a triconodont, or more likely a tritylodont.Fil: Rougier, Guillermo Walter. University of Louisville; Estados UnidosFil: Gaetano, Leandro Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Macovicky, Peter J.. Field Museum of National History; Estados Unidos71th Meeting Society of Vertebrate PaleontologyLas VegasEstados UnidosSociety of Vertebrate PaleontologySociety of Vertebrate Paleontology2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/221919An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas; 71th Meeting Society of Vertebrate Paleontology; Las Vegas; Estados Unidos; 2011; 182-1821937-2809CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/wp-content/uploads/2021/04/SVP11Abstracts_Full.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:30:02Zoai:ri.conicet.gov.ar:11336/221919instacron: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 10:30:02.484CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
title An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
spellingShingle An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
Rougier, Guillermo Walter
CYNODONT
EARLY CRETACEOUS
TEXAS
title_short An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
title_full An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
title_fullStr An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
title_full_unstemmed An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
title_sort An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas
dc.creator.none.fl_str_mv Rougier, Guillermo Walter
Gaetano, Leandro Carlos
Macovicky, Peter J.
author Rougier, Guillermo Walter
author_facet Rougier, Guillermo Walter
Gaetano, Leandro Carlos
Macovicky, Peter J.
author_role author
author2 Gaetano, Leandro Carlos
Macovicky, Peter J.
author2_role author
author
dc.subject.none.fl_str_mv CYNODONT
EARLY CRETACEOUS
TEXAS
topic CYNODONT
EARLY CRETACEOUS
TEXAS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The first remains of Early Cretaceous mammals in the Antlers Formation, Trinity Group, Texas, were described as a new genus and species of triconodont, Astroconodon denisoni. Mammals from the Antlers Formation, both in Texas and Oklahoma, include, in addition to Astroconodon, basal multituberculates, a spalcotheroid, a variety of small tribosphenic mammals basal to Theria, and arguably primitive members of both Metatheria and Eutheria. A small semi-articulated skeleton was also found at Mart Frye?s Farm, about 4.5 miles from the center of Decatur, TX, in the sandstones of the Antler Formation, Trinity Group. Mart Frye?s farm is about 2 miles from Greenwood Canyon, the type locality of Astroconodon. The skeleton includes ten dorsal vertebrae (some of them articulated to ribs), partial right pelvis, epipubic bone and partial right leg including femur and proximal fragments of tibia and fibula. No dental elements were found. All of the bones are deficiently preserved and the articular surfaces appear not to be completely ossified suggesting a sub-adult individual. The ilium, pubis and ischium are relatively gracile, while the femur, which has suffered much compression, is short and stout, with poorly differentiated laminar trocanters and neck. The incomplete femoral head would be oval and only slightly medially inflected. In these features, the femur resembles those of recently described triconodonts from the Jurassic and Cretaceous of China and tritylodonts. The pelvis (ilium plus ischium) is approximately 40mm long and the femur slightly longer. This is a large specimen for a Mesozoic mammal and does not agree in size with any of the dentally known mammals from the Antlers Fm. The similarly aged Cloverly Fm. from central USA, has yielded a tricondont similar to Astroconodon and, among other forms, the larger gobiconodontid Gobiconodon ostromi. The femur and tibia of the skeleton presented here are unlike that of Gobiconodon. We regard this partial skeleton as representing either a yet unknown mammal, probably a triconodont, or more likely a tritylodont.
Fil: Rougier, Guillermo Walter. University of Louisville; Estados Unidos
Fil: Gaetano, Leandro Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Macovicky, Peter J.. Field Museum of National History; Estados Unidos
71th Meeting Society of Vertebrate Paleontology
Las Vegas
Estados Unidos
Society of Vertebrate Paleontology
description The first remains of Early Cretaceous mammals in the Antlers Formation, Trinity Group, Texas, were described as a new genus and species of triconodont, Astroconodon denisoni. Mammals from the Antlers Formation, both in Texas and Oklahoma, include, in addition to Astroconodon, basal multituberculates, a spalcotheroid, a variety of small tribosphenic mammals basal to Theria, and arguably primitive members of both Metatheria and Eutheria. A small semi-articulated skeleton was also found at Mart Frye?s Farm, about 4.5 miles from the center of Decatur, TX, in the sandstones of the Antler Formation, Trinity Group. Mart Frye?s farm is about 2 miles from Greenwood Canyon, the type locality of Astroconodon. The skeleton includes ten dorsal vertebrae (some of them articulated to ribs), partial right pelvis, epipubic bone and partial right leg including femur and proximal fragments of tibia and fibula. No dental elements were found. All of the bones are deficiently preserved and the articular surfaces appear not to be completely ossified suggesting a sub-adult individual. The ilium, pubis and ischium are relatively gracile, while the femur, which has suffered much compression, is short and stout, with poorly differentiated laminar trocanters and neck. The incomplete femoral head would be oval and only slightly medially inflected. In these features, the femur resembles those of recently described triconodonts from the Jurassic and Cretaceous of China and tritylodonts. The pelvis (ilium plus ischium) is approximately 40mm long and the femur slightly longer. This is a large specimen for a Mesozoic mammal and does not agree in size with any of the dentally known mammals from the Antlers Fm. The similarly aged Cloverly Fm. from central USA, has yielded a tricondont similar to Astroconodon and, among other forms, the larger gobiconodontid Gobiconodon ostromi. The femur and tibia of the skeleton presented here are unlike that of Gobiconodon. We regard this partial skeleton as representing either a yet unknown mammal, probably a triconodont, or more likely a tritylodont.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/221919
An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas; 71th Meeting Society of Vertebrate Paleontology; Las Vegas; Estados Unidos; 2011; 182-182
1937-2809
CONICET Digital
CONICET
url http://hdl.handle.net/11336/221919
identifier_str_mv An enigmatic large-sized partial skeleton of an eucynodont from the Antlers Formation, Trinity Group, Early Cretaceous of Texas; 71th Meeting Society of Vertebrate Paleontology; Las Vegas; Estados Unidos; 2011; 182-182
1937-2809
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/wp-content/uploads/2021/04/SVP11Abstracts_Full.pdf
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
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dc.format.none.fl_str_mv application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Society of Vertebrate Paleontology
publisher.none.fl_str_mv Society of Vertebrate Paleontology
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