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This
page was last updated on July 25, 2010.
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South
American Land Mammal "Ages"
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| Diagram of South American Land Mammal "Ages" (SALMAs) and "Three Stratum" model of South American ungulate evolution from Croft et al. (2008) modified following Gelfo et al. (2009). Note that the events listed for each stratum are not calibrated to the SALMA sequence to the left (although the strata themselves are) and that the youngest four SALMAs have been condensed so as to be legible at this scale. The First Appearance and Last Appearance of various ungulate groups are indicated by FA and LA, respectively. |