Warhammer 40K: Megafauna
Griffs likely have technology around the neolithic to bronze age.
Emerald Maiden Chapter 3: Hunter
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
The Highlander's Mares (M/M)
Stone huts had been fashioned from ancient neolithic circles, where ringed cairns were aligned in a mysterious fashion.
Emerald Maiden Chapter 5: The Trespasser
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
Emerald Maiden Chapter 2: Beast
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
Emerald Maiden Chapter 40: Learning
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
Emerald Maiden Chapter 24: Grudge
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
Emerald Maiden Chapter 35: Girls' Night
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
Triad's Sci-Fi Furry Book Chapter Three (Draft)
Eventually, the civilization they had was destroyed, and humans reverted to neolithic hunter-gatherer tribal bands, and weren't able to build a successful civilization for another hundred thousand years.
New World, New Customs
They were probably in the neolithic era in a very remote area and it didn't detect them." everyone realizes what a tough situation they are stuck with. there is no way to go back.
Emerald Maiden Chapter 10: The Tent
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.
Emerald Maiden Chapter 6: The Lake
Description: a young woman from a pre-neolithic society is accidentally whisked away to another world entirely during a raid on a research lab run by alien invaders.