Wikipedia - Saber-toothed Cat - Hyperlinked encyclopedia article discusses genera, evolutionary tree, use of the canine teeth, and species. - http://en.wikipedia.org/wiki/Sabre-toothed_cat
Sabre-Toothed Cats - Information from an Illinois State Museum exhibit on sabertooths and scimitar cats. - http://www.museum.state.il.us/exhibits/larson/smilodon.html