https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2019.00287/full
Frontiers | Evolutionary Significance of Equinae From the Mexican Neogene
North American Equinae integrates a monophyletic clade that consists of about 20 genera and 80 species. This group includes horses with hypsodont cheek teet...
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