Mesolithic
All of these!!!
In prehistoric times, about 20,000 years ago.
the Precambrian era
Opposition to legalized abortion caused many conservatives to oppose the ERA.
Humans
Prehistoric means before events where logged and recorded by man; all dinosaurs exisited in the prehistoric eras.
Another name for the Prehistoric Era is the Stone Age.
Characteristics of the Prehistoric era include cool climate, the environment became more similar to today's environment, and new agricultural practices were implemented.
Prehistoric Era
cassica age
hunter-gather, nomadic, egalitarian
No written language.
No written language
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.
The Paleo-Indian Era, The Archaic Era, The Woodland Era, The Mississippian Era
The prehistoric era was followed by the ancient era, which typically covers the time period from the development of writing systems to the fall of the Western Roman Empire in 476 AD. This era is characterized by the rise of civilizations, the development of advanced societies, and significant advancements in areas such as technology, art, and governance.