I'm stuck in the house (health reasons) and have nothing better to do at the moment, so I'm going to make a long winded post. Hopefully some will find it educational and it won't fall on deaf ears.
I'll start out by saying that 95% of what we find has been used, some to exhaustion or near it. Many of these small 1 1/2" points that we find started out life at much greater lengths. We have to keep that in mind and always look for the tell-tale signs that will tell us the story of their life.
The vast majority of the flint "Spearheads" we find are nothing more than knives or similar utilitarian tools. Spears may have been used to some degree, but perhaps not to the extent that some may think. Let's discuss why "spearhead" isn't always the best option.
While alot of people like to envision Paleo man as an
--deleted-- grunting hairy dude with a short fuzzy toga and pointy stick, that's far from the truth. Early man in the Americas was a very intelligent person. He knew that if he ran up to an elephant and just started jabbing it with his pointy stick, the outcome most likely wasn't going to be that good. Instead, he made use of the terrain, natural traps (as well as devised one) and other tools to help him with his quarry. One of the greatest tools at his disposal was the atlatl. The atlatl could be thrown much further, with great force, and with greater accuracy than any spear. It would allow them to kill at greater distances, without as much risk to life & limb. We know that in France, the atlatl was used as early as 17,000 years ago. In the Americas, we know for a fact that Paleo man used the atlatl also. Folsom were most likely designed for atlatl use, and perhaps some Clovis also. There have been been atlatl found in context with Mammoth remains. If the truth be known, the thrusting spear / lance probably played a much larger role in the late Mississippian and Historic time periods than any other. It was used effectively by plains horsemen (along with others) to help take down bison as well as in warefare. However, during the historic times the heads of these lances were commonly made of metal obtained by the Europeans.
What about those large Dovetail, Hardin, Daltons, etc? What are they then? Simply, most all of them are knives. How do we know that those big Doves and Daltons are knives? Beveling is an easy clue. Beveling is the bi-product of being resharpened several times. Beveling is another ingenious thing that early man done. They found that if they would resharpen just one face of each side, instead of all four, that it would maintain sharp edge, but they could get twice as many sharpenings out of that blade. Their blades would last twice as long, because it would only lose flint at 1/2 the rate. Not all aboriginals employed this beveling technique, but many did, especially during early archaic times. Does this mean all knives are beveled? No, but beveled artifacts are generally a sure-fire sign of them being used as knives. So, Bolen Bevels are all resharpened (see how screwed up typology can be?). Ok, Ok, I got off track - back to the subject.
"Ceremonial" was brought up, so I'll address my opinions on it. I hate the word, almost as bad as the phrase "transitional paleo". The reason is because it's usually used as a cop-out, in a generic sense. When somebody can't make heads or tails of a point, they will undoubtedly bring up the "C" word. If it has flaking left instead of right, or if one barb is longer than another, or if it's 1/2" longer than normal..yup, people bring out the word ceremonial. I'm not saying that some items aren't ceremonial or have a special purpose, of course they do. I just think it's used entirely too much to try to explain something that they can't make sense of. I'm a somewhat accomplished knapper, have been doing it around 30 years. However, when I go to make a Hardin sometimes the material (or me) will be having a bad day and it will wind up looking like something that makes me scratch my head. This doesn't make it ceremonial. I'm sure the natives went through the same thing on a regular basis. Unless it's found in certain context, there really isn't much telling if something was ceremonial or not. Many HAVE been found in ceremonial context though. They have been found in burials covered with red ochre, or buried in doorways, or in other situations that lend creedence to them having been for that purpose.
Here's something yall may find interesting. The "Sweetwater Biface". Most of us are familiar with this large blade, considered to be one of the thinnest flint artifacts ever found. It's a monster, and the thinness will blow your mind. Gregory Perino and others have stated that it had to be ceremonial and was never used. To tell the truth, I always thought that also. Anyways, we have the Sweetwater over where I work, and I put it under a microscope last year to examine it. When I examined the ends of it, I noticed that it has use wear on the ends. It has been utilized, not just a little..but quite a bit. It's still possible that it could have served a special ceremonial function, but now there is the distinct possibility also that it was a utilitarian knife that just hadn't been resharpened yet.
Crap, had more to type, but have to go for now.