Fossil Collecting in Florida - a Trip Report

Our nice mako and juvenile meg two teeth on the right, along side Cris' meg (left)

When my wife and her friend planned a get together trip in Central Florida earlier this year, she asked if we wanted to turn it into a mini vacation.  Always with fossil collecting in mind, and knowing the rich bounty of fossils that Florida has to offer, my daughter, Riley, and I convinced her to give us a day to go fossil collecting.  This post depicts the planning and actual events of our fossiling experience.

But, where to start?  We know that there are tons of fossils in Florida, but, it's a big state, and all of it was submerged throughout various periods of geologic history.  Our interest this time focused shark teeth, with a chance at finding the prized megatooth, of the largest predatory sharks in recorded history, Carcharocles megalodon.  If you do some research, you can find the popular public place to collect, where you can beachcomb or sift for shark teeth.  But, it would involve a lot of driving and testing to locate spots, and that takes time, and we didn't have the luxury of time.

So, we figured that the best thing to do was to do what anglers do when they want to find a trophy fish, hire a guide.  So, we researched and found some guides that really interested us.  It didn't hurt that we also discovered that someone we "knew" (virtually) from our past experiences on The Fossil Forum and their once heralded chat room that turned out to be a guide.  We booked a trip with Fossil Voyages' PaleoCris and WILDKYLE (their YouTube and Instagram names).  Of course, we had some questions about what to bring, etc. and they answered all of our questions, making it easier to prepare.

Still, this was a February trip, and the trip that we booked called for wading in creeks while shoveling and sifting for fossils.  Our main concern was weather or not to bring waders or hip boots, or if we could we wet wade or not.  In February, we wondered if the water temps in Central Florida were too chilly to wade in.  As it turned out, not at all, this time.  The weather was in the mid-80s all week while we were there, and nighttime lows weren't low enough to chill the water, so wet wading was fine.  After all, why bring heavy waders and pay for another checked bag on the plane?  We were trying to keep our vacation as cheap as possible.  As for other needed equipment, really, all that we needed was ourselves, dressed to get dirty and wet, a change of clothing, sunscreen, bug spray, some snacks and water.  Cris and Kyle supplied all of the collecting equipment.

First, we met them at a public shopping area, and then followed them to one of their favorite spots to take their clients.  From our vehicles, it was a short hike to the creek, and not a long wade to the area to start our fossil search.

So, we started sifting and...well...did they put us on fossils?  You tell me.  On our first and third sifts of the day, we found a nice juvenile meg (short for megalodon) in near perfect condition, and a monster giant mako shark (Carcharodon plicatilis).  This shark is considered by most experts in the field as a direct ancestor to our modern great white shark, Carcharodon carcharias.  The only difference in their teeth are the lack of serrations on the extinct shark.  Other than that, the teeth in each position of the jaw are nearly identical in shape and form.  The colors on this tooth were striking.  In the pic at the top of this article, these two teeth are the smaller of the three teeth pictured.

So, the shoveling and sifting adventure started with a couple huge finds.  Man, I thought then that this would be easy and we'd be wading in meg teeth in no time!  Of course, it's never easy.  You have to work for it, and yes, even here.  Just like catching a monster bass on your first cast, many times you have to work your butt off to find good fish the rest of the day.  That was the case here too.  Now listen, I'm not complaining at all, because at the end of the day, our combined finds were quite amazing for such a short time collecting.  Just a note, we collected until I couldn't take it any more.  Our guide friends would have accommodated us longer and they certainly worked hard for us all day.

About our guides, let me say here that they are first class, nice, friendly and certainly fun, and both Riley and I really enjoyed their company.  But, they were also very knowledgeable, helping Riley and I identify our finds as needed.  We knew about the teeth IDs, but some of the other vertebrate fossils and artifacts required their assistance, and that was much appreciated.  Not only that, my aching back slowed my shoveling pace later in the day, and both Cris and Kyle helped us fill both our sifters.  We couldn't have asked for better guides.

I won't chronicle the rest of the events while collecting, because you can see pretty much what happened for yourself in the two videos that I'll link later in this post.  I highly recommend that you watch and "like" them both, and subscribe to both channels.  But the bottom line is that it was a productive day, and we had an absolute blast, and a pleasure meeting these two avid paleontologists.

In the following pics, I'll explain some of the finds.  Riley and I found most of these finds, but about 1/4 of them were thrown in that Cris and Kyle found, maybe more.  I couldn't remember exactly who found what for the most part.  Riley and I were a team, so anything that I say that I found, or Riley found, we actually found together.

These are the shark teeth, stingray dental plate fragments, and fish fossils found on the day.  The largest complete tooth in the middle is the large giant mako that we found on the third sift, and the small meg to the left was found on the first sift of the day.  Above those teeth are the fish fossils, including three sections of  a sawfish rostrum, a catfish spine,  a barracuda tooth and some other fish teeth.  Below the mako tooth are various smaller shark teeth found during the day, including a smaller mako tooth found by Cris, some snaggletooth shark teeth (Hemipristis serra), tiger shark teeth, and below them lots of lemon and requiem shark teeth.

Most of these bones and vertebrae are dugong (Metaxytherium floridanum) bones.  The two bones below are dolphin, and the one above that may be a fragment of a Gomphothere tooth.  A Gomphothere is an extinct elephant like mammal.

The bone in the center of the pic above is enlarged here.  It's a dugong ear bone, and apparently not very common.  Riley found this beauty in her sifter.

The two bones on the left are partial dolphin jaw bone fragments.  In person, you can easily see the slots that the teeth were placed.  This picture is not very clear.  The fossil to the right is the Gomphothere tooth fragment.

The fossils  in the upper left quarter of this picture are turtle shell fragments, and below that, some shells and internal molds of snails and clams.  The fossils in the upper right include the crocodile (Thecachampsa americana) scute that Cris found, and some croc teeth that Riley, Kyle and I found.  To the right of that is the meg tooth that Cris found.  The bottom half of the picture are the Native American artifacts that we found collectively, with the hammer stone to the left, some chert reject pieces (likely split when trying to manufacture points), and three pieces of pottery.  The bottom piece of pottery is old, but modern.  As both Cris and Kyle pointed out in the videos below, we were able to collect these artifacts because they were found on private property.  Incidentally, the hammer stone is a tool made from a chunk of dense limestone that is also packed with fossilized bivalves and other critters, so it's an artifact and fossil one one!

These fossils are from the late Miocene, about 8-9 million years old, and are from the Coosawhatchie Formation.

At the end of the day, I was exhausted from shoveling and sifting.  My back was in a ton of pain, and really reminded me of how out of shape I was.  We still had an hour and a half drive back to where we were staying, so, I was in a bit of a hurry to get out of there.

Cris and Kyle had some more work to do to close out their videos, so they did that while I cleaned up the fossils.  I accidentally scooped up Cris' meg into my container, not paying attention.  I didn't realize it until we returned from where we were staying.  I immediately texted Cris and apologized, and offered to ship it back to him, but he declined and told me to add it to our collection in our Florida riker mount.  I couldn't believe his generosity and humbly accepted his forgiveness.  I felt awful about the whole thing.  What the heck was I thinking?  Our entire collection is of stuff that we found, except for some stuff that we traded at the request of others that really wanted some of what we had.  Now, that isn't the case, and it troubles me.  I just hope it doesn't jeopardize our chances to book future trips.

Anyway, on to more good stuff for you guys to follow, the videos and YouTube Channels of both Cris and Kyle.  I hope you like them as much as I do.  They're fun, informative, and keep you hooked to the next one.  Please subscribe to their channels, and if you get a chance, contact them and book them.  I highly recommend it.  Please watch both videos, they each have some different stuff about our finds.  Also, please find and follow them on Facebook and Instagram.  You can contact them via Instagram to book a trip.

Cris' video:

Kyle's video:

Hire a Fossil Collecting Guide?

I've always collected fossils on my own, for years, beginning with shark tooth trips with my Parents, sitting on the beach digging holes in the sand, sifting with our fingers, and finding shark teeth.  We found jars of them.  Later in life, I sought out better specimens and explored various sites in my region.  I expanded my collecting to the inland formations, searching the Devonian fossil beds for older material.  I did this on my own, with my daughter, and a few friends along the way.  I never imagined going with a guide to fossil collect...until recently.

Cathy Young, of Mid-Atlantic Fossil and Nature Adventures, contacted me via a fossiling friend, to help on one of her trips, using my boat to transport kids that were attending her paleontology camp to various local spots only reachable by boat, and some on private property where access is extremely limited except by her and her experts, who have permission on those sites.  I agreed to help and was very curious about her program.

As it turns out, looking back on my experience, Cathy, her experts, the volunteers helping as boaters and guides, really impressed me, not only on their knowledge, but how great they were with the campers attending her paleontology camp.  My bonus was to see a couple sites that I've never been to.  I didn't have much time to collect, as I had to be ready to move when the experts were ready to move.  That included gathering the campers assigned to my boat and keeping track of them so we could move quickly and safely.

Cathy Young is so nice and knowledgeable, and it was my honor to help her service out during the paleontology camp.  Cathy is the proprietor of the Mid-Atlantic Fossil and Nature Adventures.

The 2015 Paleontology Camp Experts:
In addition to Cathy, who is an expert in her own right, the experts, some world renowned, participate in each of Cathy's trips or activities, that occur from New York South to Alabama, ranging from fossil and mineral collecting expeditions to nature trips.  The experts for each trip specialize in the subject matter and location for each trip.

The 2015 paleontology camp had two experts.  I missed the first night's presentation by world renowned Dr. Bretton W. Kent, the author of one of my most prized books, Fossil Sharks of the Chesapeake Bay Region, that is so helpful for identification purposes.  I couldn't get off work earlier enough to make the trek down to where we were staying.  I did, however, get to meet him at breakfast the next morning, and that was a treat in itself.  Other than some small talk, I pretty much found myself tongue tied!

The other expert at the camp was Dr. Lauck "Buck" Ward, retired Curator of Invertebrate Paleontology at the Virginia Museum of Natural History (VMNH), and is currently a Curator Emeritis at VMNH.  I was fascinated by everything that he said, because there were teaching moments for all of us, the volunteers and the campers.  He had a way with the campers too, seemingly grumpy at first, but they all loved him, and I believe the feeling was mutual for him as well.  I really enjoyed talking with him as he answered my endless questions.

Dr. Lauck "Buck" Ward presenting his fossils to the campers.  He had a way with the campers that grabbed their attention, taught them and made it fun for them.

Dr. Ward provided enthusiastic discussion on the geology, formations, and fossils of each site that we visited as the campers collected fossils of all kinds, including fossilized shells, shark teeth and other vertebrate fossils.

Dr. Ward in action teaching both campers and volunteers at one of the collecting sites.

Campers and volunteers having a great time collecting fossils at one of the sites.

Some of the campers and a volunteer searching for fossils along the beach of one of the sites.

Cathy's paleontology camp included all kinds of activities after collecting hours, most were organized, others just happened.  Meals were entertaining, and each evening there was a presentation about fossils and geology for the campers, and even a session about how to construct a necklace for shark teeth found during the trip!

One of the unplanned activities during free time between volunteers and campers was a water balloon fight.  At first, there seemed to be distinct teams, but eventually it was a free for all.  At any rate, I avoided getting wet, but many became drenched.

I was very impressed with the program itinerary.  It was very organized and well planned.  Everyone seemed to find their share of fossils and had a great time, campers and volunteers alike.  If the other trips are as well planned and organized as the paleontology camp, and in my mind there is no doubt of that, then you may have a great time attending one of Cathy's trips.  I'd say the trips are worth every penny spent.  You'll get to meet and collect with experts to some places that are off limits to most people, and others where access is limited.

So, would I hire a guide?  I'd say yes, and in this case, you'd get your money's worth.  I plan on attending trips as a customer in the future along with my daughter.

For more information, you can visit the website  Mid-Atlantic Fossil and Nature Adventures, or email Cathy Young at cathy@fossilandnaturetrips.com.  You have a chance to find some great fossils and learn from the experts at the same time.  More importantly, you'll have fun.

Take a Visit to the Miocene

One of the most famous epochs containing formations with abundant shark teeth is the Miocene.  This post is displays pictures and information from the Calvert Formation, Miocene Epoch, approximately 18-25 million years old, and hopefully will give you a better idea what to find from this time period. 

If you find fossils like these, perhaps the pictures and descriptions below will help you in some way to either identify your fossils or perhaps give you some good information about them. 

I'm really blessed to live along the Mid-Atlantic Coast of the U.S.A. because of the rich fossil deposits along our tidal rivers, bays, and the Atlantic coastline.  I will cover several species in this post, but anything I don't get to here will be covered at a later date in future posts.

(Above) Pictured left to right, I think it's a small toothed whale, but could be a large porpoise tooth, both teeth to the right of that is Carcharocles chubutensis (ancestor to the famous megalodon), and the one on the right is Carcharocles megalodon (the "shamer" half tooth is almost 4 1/2 inches long).  These sharks are fossils of extinct giant white sharks, or megatooth sharks. 

Many experts believe that this lineage died out about two million years ago at the end of the Pliocene epoch.  Many theories exist as to why they became extinct, but we may never know.  Others believe that this is the ancestor to the modern great white shark, Carcharodon carcharias.  The evidence in the fossil record seems to point to a different ancestor to our modern great white, which may have been an extinct giant mako shark, Cosmopolitodus hastalis.  The teeth are remarkably similar in size, shape, and jaw position and the only difference appears to be that the extinct mako lacks the serrations of the modern great white shark. 

You can follow the comparisons here:  http://www.elasmo.com/genera/slides/gw_evo/gw_intro.html.  Make sure that if you follow that link to use the drop down menu at the top right to view each part of the article.  It's really fascinating to me.  C. chubutensis grew to over 40 feet long sporting teeth over four inches long, while many believe that C. megalodon grew to 60 feet or more with teeth exceeding a whopping seven inches long!!!!  By the way, the website http://www.elasmo.com/ is a great website that can assist you in identifying your finds.


The chart above suggests the possible evolution of the massive megatooth extinct great white shark, Carcharocles megalodon.  There is one tooth not pictured that may have given rise to Otodus obliquus on the left of the chart called Cretalamna appendiculata from the Cretaceous and lived into the Paleocene.    

(link here:  http://www.elasmo.com/genera/cretaceous/cretalamna.html)  You'll notice that the older sharks, like Otodus obliquus, lack serrations, aren't as pronounced, or only partially cover the blade, and through evolution become more pronounced and completely cover the blade.  Likewise, the older teeth have large cusplets (basically, small blades or points jutting out of the root or blade).  As these sharks evolved, you'll notice the cusplet sizes decreased over time until non-existant in megalodon.  And finally, the blades become more robust and massive, and the teeth increase in size overall size (as the size of these sharks increased).

This is a posterior "meg" (the pet name palaeo types give megalodon).  This tooth position is the furthest from the center of the jaw.  I'm not sure if this is an upper or lower tooth.  Anyway, they aren't very common and always make my day when I find one.

The picture right below is "in situ" (latin for in position), in this case, a ground shot photo of the posterior meg tooth that I found in the previous picture.

Can you spot the tooth in this in-situ photograph?

When collecting shark teeth, often they are just laying on the ground, sometimes out in the open, other times hidden by gravel, shells, or partially covered by sand.  All it takes is a few waves to expose a tooth. 

To find these teeth, you not only need to recognize their shapes, how they glisten when wet or shine in the sun, sometimes their color, but especially when they are partially exposed.  You need to recognize a partial root, or part of a blade sticking out leaving a sharp even edge unlike the shells around it.  As you see in the picture at left, there is a lot of shell material on the beach.  I'd venture to say that about ninety five percent of the shells that you'll find along the Calvert Formation are fossil material.

How do the teeth and other fossils wind up on the beach?  Millions and millions of years ago, much of the Mid-Atlantic coastal plain of today was covered by the ocean.  As animals died they settled on the sea floor and became buried by silt or sand.  Those dead animals became fossilized eventually.  But, most of the shark teeth that you find were simply teeth that sharks lost as they fed.  Sharks shed teeth as they feed at the rate of five to ten thousand per year, per shark, depending on the species.  As prehistoric sharks lost their teeth, they settles into the silt on the sea floor and became buried.  Layer upon layer of silt and animal remains settled on the sea floor for millions and millions of years, eventually becoming clay and rock.  All the while, the fossilization of the animal remains occurred. 

After the oceans receded, what was once ocean floor, became exposed above sea level.  In our region, these exposed fossil deposits were eroded by water and wind eventually forming cliffs showing layers of the clay material.  Over time, as the cliffs eroded, chunks and boulders of clay crashed to the beach below.  Those boulders contained the fossils.  Waves and tidal currents stripped the clay material, and the boulders eroded quickly into small pebbles (like in the picture), or just sand and silt, and left the fossils strewn across the beach.  Waves and currents continually cover and expose the fossils that we're lucky enough to find.


The tooth above is currently unidentified.  I found it in the Calvert Formation.  It's serrated and uniform, and several local amateur paleontologists and collectors believe that it could be a great white shark, Carcharodon carcharias.  But, modern great white teeth are so rare here that I have yet to hear of anyone finding one.  So, more than likely, it's probably a posterior juvenile tooth of Carcharocles  megalodon.  If anyone knows for sure, I'd appreciate a comment.  At any rate, even though it 's quite small, it's one of my coolest teeth from the Calvert Formation.  The root is robust, the blade serrated, and there are no notches.  Edit:  I've since had the tooth identified as a symphyseal megalodon tooth, probably from a smaller adult shark.

The next tooth pictured in the above two photos, is Hemipristis serra, commonly known as the snaggletooth shark.  This is one of my favorite species of shark teeth.  It became extinct after the Miocene about 18 million years ago.  Teeth from this shark sometimes exceed 1 1/4 inches long suggesting that this shark grew to about 15 to 20 feet perhaps.  This must have been quite an opportunistic feeder because it has such a varied array of teeth in the jaw (known as the animals dentition). 

The upper teeth, like the two pictured above, have nasty huge serrations, like a steak knife and are extremely sharp.  The first picture shows an upper anterior (front) tooth.   The second pic, is an upper lateral (toward the side of the jaw) tooth.  These cool looking teeth are designed for cutting.  It's a fairly robust tooth as well with a root as strong as the modern tiger shark. 

The lower anterior (front) teeth, pictured above, resemble those of sand tiger sharks, although they all have serrated edges, some of serrations can be completely worn away and can confuse collectors who may misidentify them as a sand tiger shark.  The lower teeth are needle like (although a bit more robust) and somewhat hooked, which are perfect for grasping and holding prey while the upper teeth do the dirty work.  I imagine that this shark was a formidable predator in it's day. 

There is a modern day relative, Hemipristis elongata that lives off the coast of Africa.  The modern day shark only grows to about eight feet long, yet has a similar dentition, pictured on Elasmo.com here:  http://www.elasmo.com/selachin/slides/dent/pics/h_elongata-dent.jpg.

My brother and I were collecting along this beach years ago.  Not only did we find fossils, but, we enjoyed the peace and solitude, as our minds drifted back to the Miocene.

The scenery is quite beautiful along the Chesapeake Bay.  Sometimes you may find solitude while collecting, drifting back in prehistoric time, as the gentle slap of waves along the shore act as a sorting machine of the material on the beach. 

There are many techniques that people employ to find fossils, and I'll save that for a future blog post, but sometimes nature will do the work for you.  Each wave can expose something new to find.  Please note that it's illegal to dig into the cliffs.  Anything that you find here must come from the beach deposits.

Now, before we move on, let me clarify that the megalodon and chubutensis teeth above are not very common.  I may only find a few each year.  The teeth pictured at above are more of a typical mix of what you'd find on an average trip. The top left tooth is a sand tiger shark tooth. 

Notice the long, slender, needle like shape perfect for grasping prey, especially fish.  The lower anterior teeth of Hemipristis serra resemble these in shape.  Directly below that tooth is a cow shark tooth, Notorynchus primigenius, which has many cusplets.  These shark teeth also are some of my favorite finds and are very cool. To the right of those are mako teeth, more Hemipristis serra teeth, and below those are two species of extinct tiger sharks, and below that are lemon shark teeth and various requiem shark teeth that are extinct relatives of todays bull sharks. 

Anyway, you get a feel of how many shark teeth and different species that are likely to be found when conditions are right.  I'll get into more detail later about some of the species in that picture.






























The above picture shows two very special finds.  The left tooth is cow shark, or sevengill shark, Notorynchus primigenius, a tooth that is fairly rare because of it's position in the jaw.  It's known as a symphyseal tooth, which is a fancy scientific word describing the center of the jaw.  This symphyseal tooth is from the cow sharks lower jaw.   As mentioned above, cow shark teeth really get me fired up when I find them.  They are not very common and just are very cool indeed. 

The tooth on the right is from a crow shark, Squalicorax kaupi, which became extinct long before the sharks of the Miocene.  It was a special find simply because it's from another time period, the Cretaceous, or the time of the dinosaurs, probably about a hundred million years old or so.  So what's so special about that?  Well, that formation is not near the Calvert Formation.  It's normally found about 50 miles away on the other side of the bay.  So, how did it get there?  We can only speculate.  Perhaps it was deposited during a flood millions of years ago after the Cretaceous period when the oceans receded.  Perhaps a collector that had been exploring Cretaceous deposits had one stuck in a sifter and accidentally dropped it.  More than likely, though, it was "reworked", which means that some other force of nature, perhaps and animal, like a shrimp, or crab, created a burrow and pushed the tooth from a deeper layer up into the Calvert Formation.  This could have even occurred from modern day animals burrowing, like ground hogs.  I've found two of these speces at this location.

Back to cow sharks.  In the picture above, there is a tooth from the upper anterior of a cow shark jaw. It's the right most tooth in the picture. You'll notice that it has less cusplets than the symphyseal tooth shown earlier.  In case you're wondering, the tooth on the left is a snaggletooth shark, and the center tooth is a C. chubutensis, or extinct great white.

The most impressive cow shark teeth are the lower anterior and lateral teeth.  The picture at left shows one of these teeth in situ.  In this particular species, you can have as many as seven cusplets.  There's another species, Hexanchus gigas that can have as many as a dozen cusplets!  That species is quite rare.  Both of these species are extinct, but both have very close relatives that are nearly identical from a tooth morphology standpoint.  Most of the teeth that you find from these sharks are broken.  You'll find segments of cusps, or perhaps a complete number of cusps but the root may have been broken off.  It's pretty rare to find a complete tooth. 

The main cusp was damaged on the one in the in situ photo.  But, on a different trip, I found a real nice one, above.  It was complete and perfect.  Notice the serrations ahead of the main cusp on the right edge of the blade.  The root is thin and fragile, but deep.  Cow shark teeth are not the primary goal of the collector.  In fact, most everyone leaves their house for a hunt hoping to find the elusive megalodon.  If you don't find a "meg" on your trip but come home with a cow shark tooth, then that's a real nice consolation prize if you ask me.  Always remember though, that no collection is complete unless you have representative specimens of each species of shark.  The tooth on the right is a porpoise tooth.

A riker mount full of teeth like this makes for a very impressive display, one that would cause jealousy among many fossil hunters around the world.

The next tooth that I'll show you is a mako shark Isurus desori (pictured above).  There are three types of extinct mako sharks that you can find in the Calvert Formation.  Isurus desori, or shortfin mako, and Isurus retroflexus, or longfin mako, are very similar to the shortfin and longfin makos of today.  The only difference is probably that the size of the mako teeth from the Miocene are slightly larger than their modern relatives.

Cosmopolitodus hastalis, is the third species found in the Calvert Formation. Many palaeontologists think that C. hastalis was the direct ancestor to our modern day great white shark.  I'll have pictures of those teeth in future fossil updates.

The right most tooth in the picture above is from a Bigeye Thresher shark Alopias superciliosus.  These teeth are not common at the cliffs.  The teeth are always less than an inch long, but have robust roots and blades, and are unserrated.  There are two species of thresher sharks that lived around here millions of years ago.  Thresher sharks, it's believed, use the upper lobe of the tail, which is extremely long, to herd baitfish in huge baitballs, and the sharks gorge themselves while feeding on the bait ball.  Some people think that they can actually use their tails to maim prey, like fish.

There are several types of commonly found teeth, but I'll post about those at a later date.  Hopefully, for a while, this will be enough for you to absorb!

While you're waiting for the next update, check out these great fossil websites and forums:  http://www.thefossilforum.com/ and http://www.blackriverfossils.org/.

There's a lot of information on those sites in addition some knowledgeable and friendly people.