Who is the last common ancestor of chimpanzees and humans, and what year did Dental Apes evolve?

Dentists were people trained in he art of dentistry that is tooth care and used nova caine so i would say the 1940's maybe 1950's after the world war of 1930's-45 and the atom bomb was dropped on nagasaki and hiroshima. perhaps wag question or mean dental humans.

Species close to the last common ancestor of gorillas, chimpanzees and humans may be represented by Nakalipithecus fossils found in Kenya and Ouranopithecus found in Greece. Molecular evidence suggests that between 8 and 4 million years ago, first the gorillas, and then the chimpanzees (genus Pan) split off from the line leading to the humans.

Pierolapithecus catalaunicus, is one candidate. It's 13 million years old. There are several other contenders for the common ancestor, including Kenyapithecus and Equatorius or the older Morotopithecus and Afropithecus. But the fossils that do exist indicate that these ape species were more primitive than Pierolapithecus.

Species close to the last common ancestor of gorillas, chimpanzees and humans may be represented by Nakalipithecus fossils found in Kenya and Ouranopithecus found in Greece. Molecular evidence suggests that between 8 and 4 million years ago, first the gorillas, and then the chimpanzees (genus Pan) split off from the line leading to the humans.

Pierolapithecus catalaunicus, is one candidate. It's 13 million years old. There are several other contenders for the common ancestor, including Kenyapithecus and Equatorius or the older Morotopithecus and Afropithecus. But the fossils that do exist indicate that these ape species were more primitive than Pierolapithecus.