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Systematic and morphogeometric analyses of Pachyrukhinae (Mammalia, Hegetotheriidae) from the HuayquerÍas, Mendoza (Argentina): biostratigraphic and evolutionary implications
(Society of Vertebrate Paleontology, 2018-05)
We present new remains of Pachyrukhinae (Hegetotheriidae) from the Huayquerías del Este (Mendoza, Argentina). We identify Tremacyllus impressus, proposing T. subdiminutus as a synonym and providing new data on postcranial ...
Tracing the Paleobiology of Paedotherium and Tremacyllus (Pachyrukhinae, Notoungulata), the Latest Sciuromorph South American Native Ungulates – Part II: Orbital, Auditory, and Occipito-Cervical Regions
(Springer, 2021-06)
The caudal cranium and occipito-cervical region, although usually overlooked, are informative about the paleobiology of fossil mammals, allowing inquiry into vision and hearing abilities, as well as head and neck postures. ...
Systematic and morpho-geometric analyses of Pachyrukhinae (Mammalia, Hegetotheriidae) from the Huayquerías, Mendoza (Argentina): Biostratigraphic and evolutionary implications
(Society of Vertebrate Paleontology, 2018-05)
We give to know new remains of Pachyrukhinae (Hegetotheriidae) from the Huayquerías de San Carlos (Mendoza, Argentina). We identify Tremacyllus impressus, proposing T. subdiminutus a synonym name, and giving to know new ...
Dental shape variation of Neogene Pachyrukhinae (Mammalia, Notoungulata, Hegetotheriidae): systematics and evolutionary implications for the late Miocene Paedotherium species
(Cambridge University Press, 2018-10)
Paedotherium was the last representative of the pachyrukhines (Notoungulata, Hegetotheriidae), a small rabbit- or caviomorph rodent-like clade, with hypsodont and simplified dentition. In contrast to the Pliocene Paedotherium ...
Sciuromorphy outside rodents reveals an ecomorphological convergence between squirrels and extinct South American ungulates
(Nature Publishing Group, 2019-06)
Notoungulates were a diverse group of South American ungulates that included the rodent-like typotherians. However, they are typically compared with other ungulates and interpreted as grazers. Here we present the first ...
Tooth Size Variation in Assemblages of Tremacyllus (Hegetotheriidae, Notoungulata): Insights into Geographical Gradients, Systematics, and Sexual Dimorphism
(Springer, 2021-09)
Tooth size variation within fossil assemblages can be associated with intra- or interspecific variation, functional, developmental, and geographical factors, and/or sexual dimorphism. Understanding these sources of variation ...