Another guesstimate for point type is a SCALLORN. The basic design fits the book pics but those delicate serations are more pronounced than the typical Scallorn. Maybe it's a " cross over " Edwards which does feature the pronounced projections.
Scallorn time span shows it being used right up until the Spaniards first visited Texas ! Bow and arrows would have been at a near peak of development, requireing lighter weight points than the hand launched atala missles.
Target game probably ranged from the State bird of TX [ Mockingbird ] up to the Easter bunny [ Endangered species were probably the most delishious ]
I'm kinda leaning toward the SCALLORN based on where it was found. I believe it was in Red River Co, or possibly eastern Lamar Co. Either way, it was in the Red River valley. This point is amazing. It's by far the finest one I've ever actually held in my hand. It's the best point my stepdad has ever found in (I'm guessing here)probably 40 years of surface hunting. The crazy thing is, not only is this point razor-thin, but it's still intact aftr all those years. It still has this tiny, delicate tip on it. The craftsmanship is unreal