Same site? And what county?
The most complete point there, the serrated point near the top in both pictures, looks more like a Stockton type to me, which is pretty late. If you are in Sacramento/San Francisco area then I'd be more comfortable with it being a Stockton. If you are Northern California or in land into the mountains or into the Great Basin then it might be a particularly toothy Humbolt related thing.
A couple of the things do look older from what I can see, but it's just a bit of a guess. In the same row as the serrated point, the base next to it and the one to the far right kinda sorta look older.
If you are up in the hills and near an obsidian quarry, you could have thousands of years of debitage in a small area.