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Johns Hopkins University
Rhino horse, a 'missing link,' could solve 55-million-year-old mystery
Rhino horse, a 'missing link,' could solve 55-million-year-old mystery

A portly hoofed animal about the size of a wild pig just might help solve a 55-million-year-old mystery of evolution and continental drift. The mammal, which likely weighed 45 to 75 pounds, probably occupied a branch of the evolutionary tree right beside a broad group that has since radiated out into the modern rhinoceros, horse and hippopotamus, according to a study published online Thursday in the journal Nature Communications. Cambaytherium thewissi, first described nine years ago, comes as close to being described as a “missing link” as any paleontologist might dare (most eschew the term). It retains features later lost among its sister mammals, the perissodactyls –...

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