Our family was beach combing on San Jose island on the Texas coast. My daughter found a tooth that’s approximately 17 cm long. We have had no luck identifying it and hope you all may be able to help. The first photo with the tooth closest to the ruler seems to be the front side as the supposed tooth has a slight curve to it and I’m assuming the curve would have gone toward the back of the tooth when attached to the animal. The second is the back view. Both sides have a channel that runs almost the length of the tooth. The tip seems to have broken off but appears that the tooth would have come to a point.