AnAge Browser

Order	Family	Genus	n entries	Options
Perissodactyla	Rhinocerotidae	Ceratotherium	1	Options ▾ Commands Query Survey Search ADW TOL ITIS Google
		Dicerorhinus	1	Options ▾ Commands Query Survey Search ADW TOL ITIS Google
		Diceros	1	Options ▾ Commands Query Survey Search ADW TOL ITIS Google
		Rhinoceros	2	Options ▾ Commands Query Survey Search ADW TOL ITIS Google

Found 4 branches in Rhinocerotidae (query or survey).