|Prehistoric Norimaki Ancestor|
Has the same appearance as Senbei with black bushy hair and a mustache. He carries a around a club and wears a Leopard skin tunic in the manga and a brown one in the anime.
The Birth of Arale
Main article: Volume 1: The Birth of Arale
He appears in The Mysterious Egg where he walks by Senbei, Arale Norimaki, and Peasuke Soramame during their trip to the prehistoric ages after Senbei made fun of Peasuke's ancestor which Peasuke laughs because Senbei's is funnier.
- He is never shown speaking and he is only shown from the side.
- On the cover of the chapter Dr. Monster, Senbei is seen dressed like a caveman looking exactly like the prehistoric ancestor and shouting at Arale Norimaki.
|Members||Arale Norimaki • Arale and Obotchaman's child • Gatchan • Jubei Norimaki • Midori Norimaki • Nitro Norimaki • Prehistoric Norimaki Ancestor • Ryota • Senbei Norimaki • Senbei Taromonosuke Norimaki • Senbei's Father • Turbo Norimaki • Senbei and Midori's third child|
|Related articles||Norimaki Residence • Mr. Time • Reality Machine • Alarm Clock • Fairy Tale Machine • Barberman • The Announcer|