I believe this is what the fossil is called, "Cladocyclus gardneri Agassiz". Is has been in my family since before WW1. It has been passed down from Generation to Generation & now I have I have received it I was hoping to learn a bit more about it other than what I have learned on the Internet. As I said in my opening, I am not 100% that this is called a "Cladocyclus gardneri Agassiz", But I believe it is. The Fossil is over 36 inches long and over 5 inches wide and in one piece as you can see in the photos. I was just wondering what the value on something like this may be and should I have this insured or donated to a museum or anything else you may be able to tell me about this huge fossil. I greatly appreciate in and all information that you can provide as well as ballpark on the value if feasable. Thank you so much for your time. My name is Neil Kingery, direct phone #937-776-5120