When it comes to hunting quality shark teeth, I like to focus on hunting primarily soft mushy gray clay bottoms with fine black sandy gravel and a mixture of seashells. These environments can be tricky for some to hunt, as they can be really hard to spot the fossils. These areas often have a high density of shells covering the tacky clay bottom. In these areas, we use the cover ground rule: You have to cover ground in these areas to be most productive. We look for giant clam shell fields in the tacky clay. These giant clam shells seem to be the staple for debris in the area.
Our theory is that if you want to find larger teeth, look for the larger shells. It seems that most of the larger clams and teeth congregate together, while smaller shells and clams collect with the smaller teeth and fossils. While diving in these areas, I always look for the clam bed fields. They always get me excited. I have found some of my nicest and largest Megalodon shark teeth mixed in these clam fields, stuck in the clay. Keep in mind, these clam fields are not primarily living clams.
Most of these clams are those that have been eaten by predators or died and split in half, leaving only their shells behind. I think they primarily bury down in the clay bottom when alive, and once eaten, they are exposed on top of the ocean floor and gather together in these fields. The clay bottom is where the freshly eroding, high-quality Megalodon teeth are primarily coming from. When they erode out of the clay, they get trapped and gather in these clam fields. Another thing I like to look for in the clay bottom environment is low-relief limestone outcroppings. The science behind this is that the limestone relief you encounter protruding out of the clay bottom is actually the prehistoric seafloor.
Millions of years ago, when the Megalodon was hunting the ocean, it would feed on whales and lose their teeth. When the sharks lost their teeth, they would flutter down the water column and land on the limestone bottom. Over millions of years, sand and clay formed over the limestone, locking these teeth in place. So when you find limestone exposure, you are looking at the prehistoric seafloor. The clay has been brushed away by currents and the sea, leaving behind bones and teeth that have been uncovered after millions of years for us to find, just laying in plain sight on the prehistoric seafloor. Look for lots of smaller shark teeth and stingray barbs and mouthplates as well, as these areas can produce hundreds of teeth in a day of diving if you train your eye to spot them.
As mentioned previously, when hunting for smaller teeth and fossils, make sure you scale down the clams and shells and start looking for areas of less shell and smaller broken clams and shells. The thicker the shells, the harder the hunt, so I encourage you to look for cleaned-out areas of clay bottom with less shells and more fossils. You can find an abundance of teeth each dive if you get in the right areas. A lot of the smaller shark teeth we find in these areas belong to species of sharks that are still around today, such as bull sharks, tiger sharks, sand tiger sharks, and dusky sharks. This shows you just how special sharks really are, to be able to find teeth that were lost thousands to millions of years ago from modern-day species of sharks that still thrive in the oceans today.
Keep your eyes out for any unusual bones as well, as these areas also produce vertebrae from prehistoric whales and their ear bones and ribs. Usually, the bones in these areas are lighter in color instead of the usual black bones you find here. You’ll also find colorful and pretty bones ranging from orange to light brown. The colors of fossils and the quality of fossils in these areas are what collectors call museum quality. This is what keeps us hunting these areas time and time again. Anytime you can go home with a museum-grade specimen, it's a good day.
Museum-grade specimens are only about the top 1% of shark teeth we find. Generally speaking, this means that for every 100 teeth we find, 1 or 2 will be museum quality. Museum-quality teeth have perfect razor-sharp serrations, good colors with glossy, shiny enamel, and a nice bourlette. They are perfect condition teeth that were never used to eat by the shark that lost them. Many Megalodon shark teeth have busted tips due to them feeding on giant whales, which makes the museum-quality Megalodons from the tacky clayfields my favorite teeth to hunt, as they combine rarity and quality all in one.