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Collecting seashells on the beaches of Sanibel, Captiva and the world

Identify Your Shark’s Teeth

Posted by on May 22, 2013 in Bull Shark Teeth, Captiva Cruises, Cayo Costa, Fossil, Lemon Shark Teeth, Mako Sharks Teeth, Sand Shark teeth, Shark's Teeth, Snaggletooth Shark Teeth, Tiger Shark Teeth | 22 comments

fossil sharks teeth identification

A couple of weeks ago we found quite a few SHARK’S TEETH during our Shellabaloo 2 shelling adventure on a full day Captiva Cruise trip to the north side of Cayo Costa.

rusty sharks tooth hunting shellabaloo

These are just a few of the many FOSSILS we found…

sharks teeth fossils

After seeing so many different types of FOSSIL SHARK’S TEETH in just one area, I wanted to identify which type tooth was from what type of SHARK. Looking through my handy “Fossilized Shark’s Teeth & Fossils” book by Byron Fink, this is what I found….

fossil SAND shark teeth

 

The SAND SHARK and TIGER SHARK TEETH are quite different and a bit easier to identify…

tiger shark fossil teeth

The SNAGGLETOOTH SHARK is easier to identify if the serrated right edge isn’t worn to much…

fossil snaggletooth shark tooth

The LEMON SHARK isn’t as easy to I.D. if the “gum” part isn’t as prominent as these…

lemon shark fossil tooth

I still have a hard time distinguishing the MAKO and BULL SHARKS because they look so much alike and remember, they have different teeth in the lower and upper jaws AND they look different in the Labial View as opposed to the Lingual View. The author in my little book described the LABIAL VIEW as … “The front of the shark tooth you see when the shark opens it’s lips to smile at you before swallowing you.” Then he gives us the meaning of the LINGUAL VIEW as … “The side of the shark tooth (rear) you would see if the shark just swallowed you and you were looking out of the mouth“. Oh dear! LOL

mako shark fossil tooth

Bull Shark fossil tooth identification

Some of these SHARKS TEETH can be up to 40 million years old when most of the state of Florida was under water. Yes, the Gulf Of Mexico has SHARKS… but not swarming off the shores of our beaches with black teeth waiting to get you so don’t worry. Live or “new” sharks teeth are whitish and most FOSSILS are black or dark brown. If you take the full day Captiva Cruise excursion to Cayo Costa State Park, don’t forget to look for FOSSILS!

arrive boat Cayo Costa

I’ve been asked for some shelling reports for Sanibel and Captiva this week but the shelling hasn’t been as productive as last week because of strong east winds that have taken the shells back in the water. But! Even though we still have the east winds now, we have a really nice low tide in the evenings tonight and throughout the weekend so I think we could find some keepers on the sand bars before sunset this week. Kathy MT commented on the iLoveShelling Facebook page and said…  “Found a whole sunrise tellin beauty, Kings Crown, murex, fighting conchs, small whelks, lots of colorful scallops ( my favorites are the bright orange ) and lots of coquinas at the Sanibel side of Blind Pass this morning“. Thanks Kathy MT! So maybe even in the mornings. So whichever beach you decide to go to, try to find the sand bars and also search in the shallow water. Good luck!

sanibel stoop low tide east end

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