Rhinoceros: odd-toed ungulates (hoofed mammals) in the family Rhinocerotidae. AKA: Rhino Kingdom: | Animalia Phylum: | Chordata Class: | Mammalia Order: | Perissodactyla Family: | Rhinocerotidae While nearly 100 known rhinoceros species have existed throughout the eons, there are currently five species of living rhinos. ...