Late Oligocene mesotheriids (Mammalia, Notoungulata) from Salla and Lacayani (Bolivia): implications for basal mesotheriid phylogeny and distribution
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TLDR
For the first time, a large collection of basal mesotheriids yielded by the Bolivian Salla beds and previously referred to T. spegazzinianus was included in a large-scale analysis, leading to the recognition of a unique new species in the locality of Salla-Luribay and the distinction of the new Salla species from the Patagonian species T.—spegazinianus.About:
This article is published in Zoological Journal of the Linnean Society.The article was published on 2008-01-01 and is currently open access. It has received 73 citations till now. The article focuses on the topics: Monophyly & Taxon.read more
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Cenozoic South American Land Mammal Ages: Correlation to Global Geochronologies
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Phylogeny of the Notoungulata (Mammalia) based on cranial and dental characters
TL;DR: A new phylogeny of the notoungulates from cranial and dental anatomy is an essential step towards reconstructing the ancestral morphotype of the Notoungulata, and is crucial for research on the origin and phylogenetic affinities of these South American ungulates within the Placentalia.
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Alcidedorbignya inopinata, a basal pantodont (Placentalia, Mammalia) from the early Palaeocene of Bolivia: anatomy, phylogeny and palaeobiology
TL;DR: One of the major aims of this analysis is to test possible close phylogenetic relationships of Alcidedorbignya inopinata with the five orders of South American “ungulates”, and sheds light on the cranial anatomy of placentals from the earliest Paleocene.
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New Observations on the Skull of Pyrotherium (Pyrotheria, Mammalia) and New Phylogenetic Hypotheses on South American Ungulates
TL;DR: The clustering of Pyrotheria, Notoungulata, and Astrapotheria supports an isolated evolutionary history of these ungulates in South America similar to that of afrotherian mammals in Africa.
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Middle Eocene‐Oligocene broken‐foreland evolution in the Andean Calchaqui Valley, NW Argentina: insights from stratigraphic, structural and provenance studies
C. del Papa,Fernando Hongn,Jaime Eduardo Powell,Patricio Payrola,M. Do Campo,Manfred R. Strecker,Ivan Alejandro Petrinovic,Axel K. Schmitt,R. Pereyra +8 more
TL;DR: In this article, the authors present new stratigraphic, sedimentological and structural data from the Quebrada de los Colorados (QLC) Formation, in the Eastern Cordillera, with which to test two different end-member models.
References
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The linnean society of london
TL;DR: This issue contains the concluding instalment on Richard Owen and the Dinosauria, where Owen would view with incredulity the authors' present day obsession with this group of extinct monsters.
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Phylogeny as a central principle in taxonomy: phylogenetic definitions of taxon names.
TL;DR: Defining the names of taxa in terms of common ancestry, that is, using phylogenetic definitions of taxon names, departs from a tradition of character-based definitions by granting the concept of evolution a central role in taxonomy.
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The Fossil Mammal Fauna of South America
Bryan Patterson,Rosendo Pascual +1 more
TL;DR: In this article, it was shown that around the beginning of the Cenozoic, South America received a few wait immigrants-marsupials, edentates, ungulates-that reached the continent across a water barrier.