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dc.contributor.author
Marsicano, Claudia Alicia
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dc.contributor.author
Barredo, Silvia
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dc.date.available
2019-12-26T16:04:54Z
dc.date.issued
2004-01
dc.identifier.citation
Marsicano, Claudia Alicia; Barredo, Silvia; A Triassic tetrapod footprint assemblage from southern South America: Palaeobiogeographical and evolutionary implications; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 203; 3-4; 1-2004; 313-335
dc.identifier.issn
0031-0182
dc.identifier.uri
http://hdl.handle.net/11336/92936
dc.description.abstract
A new Triassic tetrapod track assemblage recorded from levels of the Cuyana Basin (west-central Argentina) is described. The tracks came from multiple track-bearing horizons of the Upper Triassic (Carnian) Portezuelo Formation that indicate recurrent playa to mudflat conditions in a marginal lacustrine succession. This footprint assemblage is the most important one described up to now for the lower Mesozoic of South America, and forms a significant estimate of the fauna represented during that time in the region. Therefore, in order to understand the faunal significance of the assemblage, the track-makers were identified within a phylogenetic context. Although at a coarse taxonomic level, this analysis indicates the presence of non-mammalian therapsids (small cynodonts and large dicynodonts) and a quite diverse archosaur fauna that includes members of both crurotarsal archosaurs and dinosaurs (sauropodomorphs and theropods). Comparisons between the studied assemblage and other Early Mesozoic tetrapod track records from Gondwana suggest close relationships with those described from the Upper Triassic of the Karoo Basin in South Africa. In addition, the presence of putative basal sauropodomorph dinosaur tracks in the Portezuelo levels suggests that the stratigraphic range of the group extends back into the Carnian, farther than that documented by the known body-fossil record of the group in western Gondwana.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
LATE TRIASSIC
dc.subject
PALAEOBIOGEOGRAPHY
dc.subject
PHYLOGENY
dc.subject
TETRAPOD FOOTPRINTS
dc.subject
WEST-CENTRAL ARGENTINA
dc.subject.classification
Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A Triassic tetrapod footprint assemblage from southern South America: Palaeobiogeographical and evolutionary implications
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-12-12T14:53:28Z
dc.journal.volume
203
dc.journal.number
3-4
dc.journal.pagination
313-335
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Marsicano, Claudia Alicia. 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
dc.description.fil
Fil: Barredo, Silvia P.. Universidad de Buenos Aires; Argentina
dc.journal.title
Palaeogeography, Palaeoclimatology, Palaeoecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/S0031-0182(03)00689-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0031018203006898
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