He thought he had established the fact that horses were Polyphyletic, there being four or five contemporary series in the Miocene, but that the direct origin of the genus Equus in North America was not established with certainty."
"The Old Riddle and the Newest Answer"
John Gerard
The problem of the monophyletic or Polyphyletic origin of the human race has also been much discussed.
"Darwin and Modern Science"
A.C. Seward and Others
It is interesting to observe that some of these genera are not natural groups, but are "Polyphyletic," i.
"Darwin and Modern Science"
A.C. Seward and Others