<Tr> <Td> </Td> <Td> <P> (some extinct groups) X </P> </Td> </Tr> <P> (some extinct groups) X </P> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Insectivora (latest Cretaceous) (hedgehogs, shrews, moles, tenrecs) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> Anagalida </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Zalambdalestidae X (late Cretaceous) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Macroscelidea (late Eocene) (elephant shrews) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Anagaloidea X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Glires (early Paleocene) </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Lagomorpha (Eocene) (rabbits, hares, pikas) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Rodentia (late Paleocene) (mice & rats, squirrels, porcupines) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Archonta </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Scandentia (mid Eocene) (tree shrews) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Primatomorpha </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Plesiadapiformes X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Primates (early Paleocene) (tarsiers, lemurs, monkeys, apes including humans) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Dermoptera (late Eocene) (colugos) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Chiroptera (late Paleocene) (bats) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Carnivora (early Paleocene) (cats, dogs, bears, seals) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Ungulatomorpha (late Cretaceous) </Td> <Td> <Table> <Tr> <Td> Eparctocyona (late Cretaceous) </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> (some extinct groups) X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Arctostylopida X (late Paleocene) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Mesonychia X (mid Paleocene) (predators / scavengers, but not closely related to modern carnivores) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Cetartiodactyla </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Cetacea (early Eocene) (whales, dolphins, porpoises) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Artiodactyla (early Eocene) (even - toed ungulates: pigs, hippos, camels, giraffes, cattle, deer) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Altungulata </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Hilalia X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Perissodactyla (late Paleocene) (odd - toed ungulates: horses, rhinos, tapirs) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Tubulidentata (early Miocene) (aardvarks) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Paenungulata ("not quite ungulates") </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Hyracoidea (early Eocene) (hyraxes) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Sirenia (early Eocene) (manatees, dugongs) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Proboscidea (early Eocene) (elephants) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> <P> Insectivora (latest Cretaceous) (hedgehogs, shrews, moles, tenrecs) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> Anagalida </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Zalambdalestidae X (late Cretaceous) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Macroscelidea (late Eocene) (elephant shrews) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Anagaloidea X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Glires (early Paleocene) </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Lagomorpha (Eocene) (rabbits, hares, pikas) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Rodentia (late Paleocene) (mice & rats, squirrels, porcupines) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Archonta </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Scandentia (mid Eocene) (tree shrews) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Primatomorpha </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Plesiadapiformes X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Primates (early Paleocene) (tarsiers, lemurs, monkeys, apes including humans) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Dermoptera (late Eocene) (colugos) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Chiroptera (late Paleocene) (bats) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Carnivora (early Paleocene) (cats, dogs, bears, seals) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Ungulatomorpha (late Cretaceous) </Td> <Td> <Table> <Tr> <Td> Eparctocyona (late Cretaceous) </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> (some extinct groups) X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Arctostylopida X (late Paleocene) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Mesonychia X (mid Paleocene) (predators / scavengers, but not closely related to modern carnivores) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Cetartiodactyla </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Cetacea (early Eocene) (whales, dolphins, porpoises) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Artiodactyla (early Eocene) (even - toed ungulates: pigs, hippos, camels, giraffes, cattle, deer) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Altungulata </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Hilalia X </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Perissodactyla (late Paleocene) (odd - toed ungulates: horses, rhinos, tapirs) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Tubulidentata (early Miocene) (aardvarks) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Paenungulata ("not quite ungulates") </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Hyracoidea (early Eocene) (hyraxes) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <Table> <Tr> <Td> </Td> <Td> <P> Sirenia (early Eocene) (manatees, dugongs) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> <P> Proboscidea (early Eocene) (elephants) </P> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> </Td> </Tr> </Table>

When is a cat's brain fully developed