They are pre-historic because there was no written record.
Humans
sup
Ringo Starr
It shows religious importance.
Neoclassical era Romantic Era Victorian Era Modernist Era
Another name for the Prehistoric Era is the Stone Age.
The prehistoric era is defined by a lack of written records and the use of stone tools by early human societies. It spans from the emergence of humans to the advent of writing systems. Key characteristics include cave paintings, hunter-gatherer lifestyles, and the slow development of agriculture.
I think the Equidea family are prehistoric horses, the characteristics depend on the era. if I'm right then a characteristic is that they had either 3 or 4 toes, depending on when it was.
Prehistoric Era
Characteristics of the Prehistoric era include cool climate, the environment became more similar to today's environment, and new agricultural practices were implemented.
cassica age
Humans
in prehistoric art all figures are well illustrated
The Paleo-Indian Era, The Archaic Era, The Woodland Era, The Mississippian Era
Prehistoric means before events where logged and recorded by man; all dinosaurs exisited in the prehistoric eras.
written launguage
hunter-gather, nomadic, egalitarian