Ancient DNA Clarifies the Evolutionary History of American Late Pleistocene Equids

@article{Orlando2008AncientDC,
  title={Ancient DNA Clarifies the Evolutionary History of American Late Pleistocene Equids},
  author={Ludovic Orlando and Dean Male and Mar{\'i}a Teresa Alberdi and Jos{\'e} L Prado and Alfredo Prieto and Alan Cooper and Catherine H{\"a}nni},
  journal={Journal of Molecular Evolution},
  year={2008},
  volume={66},
  pages={533-538}
}
Hippidions are past members of the equid lineage which appeared in the South American fossil record around 2.5 Ma but then became extinct during the great late Pleistocene megafaunal extinction. According to fossil records and numerous dental, cranial, and postcranial characters, Hippidion and Equus lineages were expected to cluster in two distinct phylogenetic groups that diverged at least 10 MY, long before the emergence of the first Equus. However, the first DNA sequence information… Expand
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DNA analysis reveals that a very Hippidion-like metapod might also have been possessed by another South American equid, i.e., Equus (Amerhippus), an interpretation supported by complementary anatomical observations that may lead paleontologists to limb bone misidentification. Expand
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Considerations on the Paper “Morphological Convergence in Hippidion and Equus (Amerhippus) South American Equids Elucidated by Ancient DNAAnalysis’’, by Ludovic Orlando, Véra Eisenmann, Frédéric Reynier, PaulSondaar, Catherine Hänni
TLDR
The results need a more exhaustive review and new analyses to be done because the material used in the study belongs to the genus Hippidion and not to the subgenus Equus (Amerhippus), Orlando et al. 2003 conclude. Expand
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