Lower jaw Hastalis (aka Mako) shark tooth pulled straight from the fossil layer and prehistoric ocean floor of underground Florida several years ago. These shark teeth don’t have serrations like their descendants, and a much more uncommon tooth to find, the Great Whites. #SHRKco #sharks #sharktoothnecklace #mako #fossil | SHRKco

Interesting, very long and skinny, lower jaw Angustidens shark tooth fossil found digging straight through the ancient ocean floor in underground South Carolina by @fossilized_finds25. Even though these sharks were an ancestor to the Megalodon and were “mega-toothed sharks”, this species didn’t quite reach lengths that the Megalodon did. So, larger Angustidens like this are much more rare than a Megalodon tooth of this size #SHRKco #sharks #sharktooth #fossils #ancient | SHRKco