Now at least five distinct species of Oxen are known to have inhabited Europe and the British Isles during the later periods of the Tertiary era, which have been named respectively, Bison priscus, Bos primigenius, frontosus and longifrons, and ovibos moschatus.
"The Romance of Natural History, Second Series"
Philip Henry Gosse
Changed "moschatas" to "moschatus" on page 361: "ovibos moschatus."
"The History of the European Fauna"
R. F. Scharff
Ostwald, W. ovibos moschatus.
"Darwin and Modern Science"
A.C. Seward and Others