1.20 new prehistoric biome for archaeology !

I think it would be a great idea to add a new biome to the game in 1.20 update , i.e. hills with limestone rocks. The biome would add an interesting charm to the game. Along with this biome, archaeology could be added to the game, and the calcium block would have a better chance of a more expensive find. Bushes could be an interesting addition to this biome. There would be small caves in the rocks where you can find prehistoric remains like mammoth tusks or spears. Such a combination would be perfect for a snifer, which is a prehistoric mob. If it rained on the biome the next day, there would be a chance for fog to appear in the morning. I hope you liked my idea :D!