No abstract available
Publication types
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Comment
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Biological Evolution*
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Bone and Bones / anatomy & histology
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DNA, Mitochondrial*
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Equidae / anatomy & histology
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Equidae / classification*
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Equidae / genetics
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Fossils
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Phylogeny*
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South America
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Species Specificity
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Tooth / anatomy & histology