It is a monkey
There were no human species known as "Cavemen".
A prehistoric reptile ancestor is the therapsid.
The mightiest reptile is often considered to be the Tyrannosaurus rex, a massive predator that roamed the Earth during the late Cretaceous period. As for the closest ancestor of cavemen, modern humans (Homo sapiens) share a common ancestor with Neanderthals and other hominins, with a lineage that traces back to earlier species like Homo habilis, which lived around 2.4 million years ago.
The mightiest reptile is often considered to be the Tyrannosaurus rex, a large carnivorous dinosaur known for its size, strength, and predatory skills during the late Cretaceous period. As for the closest ancestor of modern humans, or "cave men," that title typically goes to Homo heidelbergensis, which lived around 700,000 to 300,000 years ago and is believed to be a common ancestor of both Neanderthals and anatomically modern humans.
therapsids
Caveman as a term could refer to either Neanderthal or Cro-Magnon man (who modern indigenous Europeans are descended from).Both modern humans (descended from Cro-Magnon) and Neanderthals share a common ancestor from 200,000 to 500,000 years ago. However, this ancestor has yet to be discovered.
no, but they share a common reptile ancestor.
The common ancestor of mammals and birds was a reptile.
The early ancestor closest to modern man in intellectual ability was the
chimpanzee
Monkey
Monkey