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dc.contributor.author
Case, Judd A.
dc.contributor.author
Goin, Francisco Javier
dc.contributor.author
Woodburne, Michael O.
dc.date.available
2021-12-16T19:24:24Z
dc.date.issued
2005-12
dc.identifier.citation
Case, Judd A.; Goin, Francisco Javier; Woodburne, Michael O.; "South American" marsupials from the late cretaceous of North America and the origin of marsupial cohorts; Springer; Journal of Mammalian Evolution; 12; 3-4; 12-2005; 461-494
dc.identifier.issn
1064-7554
dc.identifier.uri
http://hdl.handle.net/11336/148903
dc.description.abstract
Newly described marsupial specimens of Judithian (late Campanian) and Lancian (Maastrichtian) age in the western interior of North America (Wyoming to Alberta) have dental morphologies consistent with those expected in comparably aged sediments in South America (yet to be found). Three new Lancian species are referable to the didelphimorphian Herpetotheriidae, which suggests that the ameridelphian radiation was well under way by this time. The presence of a polydolopimorphian from Lancian deposits with a relatively plesiomorphic dental morphology and an additional polydolopimorphian taxon from Judithian deposits with a more derived molar form indicate that this lineage of typically South American marsupials was diversifying in the Late Cretaceous of North America. This study indicates that typical South American lineages (e.g. didelphimorphians and polydolopimorphians) are not the result of North American peradectian progenitors dispersing into South America at the end of the Cretaceous (Lancian), or at the beginning of the Paleocene (Puercan), and giving rise to the ameridelphian marsupials. Instead, these lineages, and predictably others as well, had their origins in North America (probably in more southerly latitudes) and then dispersed into South America by the end of the Cretaceous. Geophysical evidence concerning the connections between North and South America in the Late Cretaceous is summarized as to the potential for overland mammalian dispersal between these places at those times. Paleoclimatic reconstructions are considered, as is the dispersal history of hadrosaurine dinosaurs and boid snakes, as to their contribution to an appraisal of mammalian dispersals in the Late Cretaceous. In addition, we present a revision of the South American component of the Marsupialia. One major outcome of this process is that the Polydolopimorphia is placed as Supercohort Marsupialia incertae sedis because no characteristics currently known from this clade securely place it within one of the three named marsupial cohorts.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
AMERIDELPHIA
dc.subject
BIOGEOGRAPHY
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DIDELPHIMORPHIA
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JUDITHIAN
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LANCIAN
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MARSUPIAL PHYLOGENY
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POLYDOLOPIMORPHIA
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
"South American" marsupials from the late cretaceous of North America and the origin of marsupial cohorts
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-12-03T19:36:11Z
dc.journal.volume
12
dc.journal.number
3-4
dc.journal.pagination
461-494
dc.journal.pais
Alemania
dc.journal.ciudad
Berlín
dc.description.fil
Fil: Case, Judd A.. Saint Mary's College of California; Estados Unidos
dc.description.fil
Fil: Goin, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina
dc.description.fil
Fil: Woodburne, Michael O.. Museum of Northern Arizona; Estados Unidos
dc.journal.title
Journal of Mammalian Evolution
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10914-005-7329-3
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s10914-005-7329-3
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