A Gomphotherium Calvertensis is a extinct prehistoric proboscidean or elephant species that lived during the Miocene epoch. Gomphotheroium fossils have been scarcely collected from the Chesapeake group of Maryland and Virginia. Gomphotheres are set aside from most common species of elephants such as the wolly mammoth or columbian mammoth by the existence of both upper and lower tusks. It is commonly thought the lower tusks were used for digging and foraging. Finding a single fossil specimen from a Gomphotherium in the mid atlantic Miocene marine sediments is quite uncommon, finding an associated set it probably unheard of. These three tusks, two uppers and a lower and the four lower teeth\jaw sections were collected in a little over a years time. A section of cliff containing choptank formation had been steadily dropping on the beach and from time to time these fossils would show up. This by far is one of the coolest things I have ever found
Below are photos of the separate teeth that make up the jaw sections above. You can see how this tooth has cone like structures that make up the crown. This is a distinctive of Gomphotherium elephant teeth. All four of these teeth are from the lower Jaw and I believe them to be the M3 and M4.