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dc.contributor.author
Marsicano, Claudia Alicia  
dc.contributor.author
Domnanovich, Nadia Sonia  
dc.contributor.author
Mancuso, Adriana Cecilia  
dc.date.available
2019-12-26T14:17:30Z  
dc.date.issued
2007-03  
dc.identifier.citation
Marsicano, Claudia Alicia; Domnanovich, Nadia Sonia; Mancuso, Adriana Cecilia; Dinosaur origins: evidence from the footprint record; Taylor & Francis; Historical Biology; 19; 1; 3-2007; 83-91  
dc.identifier.issn
1029-2381  
dc.identifier.uri
http://hdl.handle.net/11336/92894  
dc.description.abstract
Triassic tracks and trackways assigned to dinosaur trackmakers or closest relatives have been mentioned from several Middle to the latest Triassic successions from both northern and southern Pangea. At present, the earliest gondwanan records are those from the Middle Triassic Los Rastros Formation in west-central Argentina. A reanalysis of Los Rastros ichnites at the Ischichuca area, including new material, has revealed the presence of a more diverse ichnofauna than previously suspected. The ichnocoenosis includes several tracks and trackways of bipeds with functionally tridactyl digitigrade pes, well developed claws, and a parasagittal posture of the hindlimbs. Previously, some large tridactyl footprints from the Ischichuca area were allied to theropod dinosaurs, although no synapomophies are preserved in the three-toed footprints that might discriminate among theropods, basal saurischians and basal ornithischian groups as their possible trackmakers. If the Ischichuca trackmakers are referred to a dinosaur taxon and/or to a close dinosaur sister-taxon, their presence in the Los Rastros levels suggests that derived dinosauriforms (including dinosaurs) had diverged and acquired their characteristic functionally tridactyl pes by at least the Middle Triassic, something that the body-fossil record has failed to document to date.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Taylor & Francis  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
ARGENTINA  
dc.subject
DINOSAURIA  
dc.subject
FOOTPRINTS  
dc.subject
LOS RASTROS FORMATION  
dc.subject
TRIASSIC  
dc.subject.classification
Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Dinosaur origins: evidence from the footprint record  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-11-08T15:12:53Z  
dc.journal.volume
19  
dc.journal.number
1  
dc.journal.pagination
83-91  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
London  
dc.description.fil
Fil: Marsicano, Claudia Alicia. Universidad de Buenos Aires; Argentina  
dc.description.fil
Fil: Domnanovich, Nadia Sonia. Universidad de Buenos Aires; Argentina  
dc.description.fil
Fil: Mancuso, Adriana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina  
dc.journal.title
Historical Biology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/08912960600866920  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/08912960600866920