Archive for Fossil

May
22

Identify Your Shark’s Teeth

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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

Susan lighthouse

I couldn’t be happier to have another Shelling Sister that just moved to Sanibel! I feel like I’ve found my long lost Soul Sister… Susan. Of course she wanted to get the whole shelling experience on the Out Islands of Sanibel…. so before I knew it, she hired Capt. Brian Holaway for a shelling trip and she invited me to go along. Weehoo! First trip with Capt Brian!

susan capt b boat

We left the dock at 8 am but unfortunately the tide was too high to find good shells at that time so Capt Brian took us about an hour north to the beautiful town of Boca Grande on Gasparilla Island to show Susan a few landmarks by golf cart.

golf cart susan capt b

We saw the Gasparilla Island Light…

Boca grande Gasparilla Island lighthouse

We went to the Boca Grande Historical Society

Boca grande historical society

Brian’s friend Kim showed us fossils and artifacts on display at the sweet little museum…

artifacts boca grande historical

We went to the Port Boca Grande Light…

Boca Grande Lighthouse Museum

Then we hit the beach!

Boca Grande beach access

Where we sifted for SHARK’S TEETH…

sifting susan

Susan found a few FOSSILS like SHARK’S TEETH, fragments of STINGRAY BARBS and BONES.

Susans fossils

Along one of the beach paths we found a NICKERBEAN VINE with the prickly sea pods that host SEA BEANS which wash up on the beaches at times.

Nickerbean vine seed pods

These local gray drift seeds are called SEA PEARLS. So… now we know where they come from!

sea bean pearls nickerbean pod

I found a few WHITE MELAMPUS shells that were only 1/2 inch to 3/4…

white melampus identify

 But Susan found the grandpappy WHITE MELAMPUS weighing in at about 1 and 1/2 inches.

white melampus ss

UPDATE 6-21-12 – Susan H commented on Soul Sister Susan’s WHITE MELAMPUS saying “it looks as if Susan found a World Record Size (WRS) one. I’m serious, the largest size listed on Malacolog is 27 mm, which is just about an inch“.

So I got serious and dug through drawers of Clark’s dad old tools he inherited and found some very cool old calipers. Susan brought her shell over and we measured….

calipers measure seashell

Her WHITE MELAMPUS measured in at 30 mm. A World Record Size shell!! Thank you Susan H for giving us a heads up on this exciting news!

White Melampus aperuture ss

 I found a bivalve shell (it has a small hole in the top but it’s still pretty) that I didn’t recognize so after looking through all of my books… it looks like it’s a JUVENILE SOUTHERN QUAHOG. It has thin raised ridges that seem too delicate to be called a QUAHOG but I’m sure that’s what it is.

juvenile quahog

 When we got back to the dock at McCarthy’s Marina, the MANATEES were waiting for us!

manatee mcCarthys marina captiva

 We couldn’t have asked for a prettier day so thank you sooo much Soul Sister Susan for letting me tag along and to Captain Brian for guiding our gorgeous day.

seashells and sharks teeth

 

PS- Just if you are wondering…. Yes! Super Sheller Clark helped Soul Sister Susan and her beautiful family find their island home in paradise.  (I know, shameless plug …but hey, do you blame me?)

whelk on cayo costa

sailboat sand bar

pam brian susan boat dock captiva

Feb
02

Boxes and Boxes of Sanibel Seashells

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Leroy categorize seashells

Shells, shells and more shells. Leroy can’t get enough seashells!

tubs of seashells sanibel

He loves to walk the beaches of Sanibel to collect any type of shell he can find to bring home then clean, oil, categorize and box them all up in his garage. I see Leroy on the beaches quite a bit so he invited me over to see his collection.

organized Sanibel  seashells

He categorizes them at home AND he’s a volunteer at the Bailey-Matthews Shell Museum to organize shell collections that are donated to the museum. See? He can’t get enough of shells. I got tickled at this next box since those gorgeous CONES were  mixed together with all of the other “UNIVALVES”. He said “I have a method to my madness… I just don’t have enough of those categories to have their own box yet since we just moved here 2 years ago”. Yep, that would take a lot of CONES to make enough for their own box… for sure!

univalve box

 He also likes to collect BEACH BLING! You know I love me some BEACH BLING too. This was my favorite in his collection… a PURSE CRAB that still had all of it’s legs attached.

sanibel florida purse crab

This is kinda wild- ALLIGATOR GAR  jaw bones…

alligator gar jaw bone

Before he moved here, he used to collect GEODES from New Mexico…

geode from new mexico

He gave me a GEODE that was formed inside a fossil shell and a few yard shells. This is the first time I’ve seen a SEASHELL GEODE. Thank you so much for the tour, Leroy, and for my new “sheode”! (FYI-”sheode” is not a scientific name, I made that up- heehee)

geode in a shell

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