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- W4377861811 abstract "During the Pleistocene, South America had several genera and species of large hypercarnivorous canids, which became completely extinct at the end of this epoch. This paper presents a comprehensive systematic review of the group (four genera, seven species) based on new cladistic analyses that include genomic information and a study of intraspecific variation in canids. The results generated are discussed in the context of knowledge on the phylogeny, systematics, biostratigraphy, paleoecology, and biogeography of South American canids. Protocyon orcesi was synonymized with Protocyon troglodytes, and Canis nehringi with Aenocyon dirus. The genus Theriodictis would be paraphyletic, so T. tarijensis was transferred to Protocyon. “Canis” gezi does not belong to the genus Canis. The distribution of A. dirus and P. troglodytes would reach the Pampean Region and the latter as far as Mexico. On the other hand, the distribution of Theriodictis was restricted to the Pampean Region. The fragmentary nature of several taxa from North and South America complicates their phylogenetic location and biogeographical and evolutionary interpretations. However, several immigration events from North and Central America, and some later ones in the opposite direction, can be inferred, and a diversification in South America. New specimens with good preservation are needed to evaluate the presence of Chrysocyon and Theriodictis outside South America and the assignment of several canids from the Orocual sites (Venezuela). The available evidence does not allow us to corroborate the presence of large canids prior to the Ensenadense (>1.8 Ma)." @default.
- W4377861811 created "2023-05-24" @default.
- W4377861811 creator A5082150705 @default.
- W4377861811 date "2023-01-01" @default.
- W4377861811 modified "2023-10-09" @default.
- W4377861811 title "SISTEMÁTICA DE LOS GRANDES CÁNIDOS (MAMMALIA, CARNIVORA, CANIDAE) FÓSILES DE AMÉRICA DEL SUR" @default.
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