Prosimians also have features resembling primate fossils from about 50 million years ago . All this gives the misconception that prosimians are ancient animals that didn't keep up with the times. But this is not true.
Prosimians are a successful group that remained competitive.
They have carved out their own niche and thus play their role in the ecosystem of today. Their unchallenged reign came to an end 45-35 million years ago. All prosimians are found in the Old World only. Previously, the Tupaiidae were included here, but now are assigned a separate order, Scandentia. Prosimians lack many of typical primate characteristics and Prosimians also behave differently from monkeys and apes.