Felidae Oligocene, about 25 million years ago, with the appearance of "Proailurus" and "Pseudaelurus". The latter species complex was ancestral to two main lines of felids, the cats in the extant subfamilies and a third major group of extinct cats, which are assigned to the subfamily Machairodontinae. The machairodonts included the saber-toothed cats such as the "Smilodon". The "false sabre toothed cats", the Barbourofelidae and Nimravidae, are not true cats, but are closely related and together with Felidae and other cat-like carnivores (hyaenas, viverrids and mongooses) make up the feliform carnivores. Results of mitochondrial analysis indicates that all the Felidae descended
Felidae (novel) murderer, and that Joker's name was eventually cleared. Jesaja was coaxed out of the catacombs, and has found a home with a bartender. Francis muses that Claudandus had succumbed to hatred, lost his innocence, and in the process, became human. He states that all animals have the ability to lose their innocence and humans, who descended from animals, still carry a hint of innocence. The novel ends with Francis urging the reader to never cease believing in a world where all animals and humans coexist, including those "more sublime and intelligent than the latter--for example, Felidae." In Germany, "Felidae" became