duiker (C. dorsalis). In 2012, Anne R. Johnston (of the University of Orleans) and colleagues constructed a cladogram of the subfamily Cephalophinae (duiker) based on mitochondrial analysis. They showed that within the "giant duiker" group, Jentink's duiker formed a clade with the bay duiker, and the zebra duiker is sister to this clade. Similarly, Abbott's duiker and yellow-backed duiker form a clade sister to Sylvicapra. Jentink's duiker and the bay duiker probably evolved during the Pleistocene, less than 2.5 million years ago. References Jentink's duiker Mammals of West Africa Jentink's duiker Jentink's duiker