DOI: 10.35537/10915/75246
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Estudios taxonómicos y paleobiológicos sobre los Metatheria (Mammalia) del Mioceno medio de La Venta, Colombia

Abstract: En el presente trabajo se realizó la revisión taxonómica de los Metatheria fósiles pertenecientes la asociación de vertebrados de La Venta, Colombia, así como también el análisis de su filogenia y paleobiología. Se revisó casi la totalidad de especímenes que componen esta asociación de metaterios. Estos materiales actualmente forman parte de colecciones en Estados Unidos (Museo de Paleontología de la Universidad de California, Berkeley), Japón (Primate Research Institute de la Universidad de Kioto) y Colombia … Show more

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Cited by 2 publications
(7 citation statements)
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“…Following Engelman et al (2020), for all the parsimony analyses, the Dasyuromorphia Gill, 1872 taxa (i.e., Dasyurus Geoffroy, 1796, Sminthopsis crassicaudata and Thylacinus cynocephalus) were constrained to form a monophyletic group, as it has been recovered in molecular analyses (e.g., Krajewski et al 1997;Westerman et al 2016;Kealy & Beck 2017) to avoid the potential recovery of Sparassodonta within Dasyuromorphia. This is a problem also found in previous studies due to their strong convergent similarities, especially in the dentition (Forasiepi 2009;Engelman & Croft 2014;Forasiepi et al 2015;Suarez et al 2016;Suarez 2019). These previous studies addressed the problem by excluding T. cynocephalus from the analyses.…”
Section: Cladistic Analysismentioning
confidence: 87%
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“…Following Engelman et al (2020), for all the parsimony analyses, the Dasyuromorphia Gill, 1872 taxa (i.e., Dasyurus Geoffroy, 1796, Sminthopsis crassicaudata and Thylacinus cynocephalus) were constrained to form a monophyletic group, as it has been recovered in molecular analyses (e.g., Krajewski et al 1997;Westerman et al 2016;Kealy & Beck 2017) to avoid the potential recovery of Sparassodonta within Dasyuromorphia. This is a problem also found in previous studies due to their strong convergent similarities, especially in the dentition (Forasiepi 2009;Engelman & Croft 2014;Forasiepi et al 2015;Suarez et al 2016;Suarez 2019). These previous studies addressed the problem by excluding T. cynocephalus from the analyses.…”
Section: Cladistic Analysismentioning
confidence: 87%
“…The resulting data matrix (see Appendix 2), containing 52 taxa and 403 morphological characters, was edited using the Mesquite software for Linux (version 3.70;Maddison & Maddison 2021). We made some modifications to the version of Engelman et al (2020), including the return to previous versions of some characters by redundancy or ambiguity and the addition of some characters proposed by Suarez (2019), which aim to elucidate some remarkable features present in thylacosmilids (see Modifications in Data Matrix in Appendix 1). Scoring for new characters and changes in coding were made using original specimens, casts or photographs, and additional information from the literature (see Material examined in Appendix 1).…”
Section: Cladistic Analysismentioning
confidence: 99%
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