The first one looks like a knife, the 2nd one is missing the base which is hard to determine the age. Both look like they would of been real nice if the bases were there.
I'm going to stick my neck out like a soft shell turtle and say the first one is a broken kirk just due to the crudeness and unfired material and the second maybe a wacissa but like it was said earlier without the base its just a guess. They are both a good start or a good day of hunting.