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Found some specimens while teeth hunting in a creek that feeds the Cooper River in South Carolina. I think the big tooth may be great white or mako. Not sure about the smaller ones. Also found several pieces that appear to be bone. Anybody got any thoughts on what I've got? *now numbered for for easier viewing.
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Chesapecten from the Miocene of Coastal Georgia and NE Florida
mbeyer747 posted a blog entry in Stratigraphic Succession of Chesapecten
Recently, two collectors who scuba dive for fossils throughout Florida and Georgia have recovered 5 chesapecten (including two paired valves) with morphological characteristics that signal a Miocene age. These characteristics include an acute byssal notch and a depressed byssal fasciole that is strongly differentiated from the shell’s auricle in terms of sculpture and elevation. The largest of the adult shells also displays an active ctenolium and one of the paired specimens displays significant gapes between valves when matched (the other pair was preserved as found by glue according to the collector and cannot be matched). Both of these aforementioned traits are also emblatic of Miocene age for Chesapecten. These shells were recovered from the following areas in Georgia and Florida: Savannah River, Effingham County, Georgia (Collector 1) Specimen 1 (W = 108.0 mm) R valve L valve R valve - close up of byssal notch and fasciole (most of fasciole has been degraded) R valve - close up of ornamentation L valve - close up of ornamentation Profile Close up of matrix, gray sand Savannah River, Effingham County, Georgia (Collector 1) Specimen 2 (W = 101.6 mm) R valve R valve - interior R valve - close up of byssal notch and fasciole L valve - note barnacles are modern species, not fossilized L valve - interior L valve - close up of ornamentation on auricle Side profile of pair, showing gapes Front profile of pair, showing gapes Cumberland Island, Camden County Georgia (Collector 2) Specimen 3 (W = 114.3 mm) R valve, note encrustation is recent not fossilized R valve interior, thick shell apparent Close up of byssal notch and fasciole Close up of ctenolium, although modern encrustation makes it difficult to see what is going on Close up of ornamentation St Mary’s River, Nassau County, Florida (Collector 2) Specimen 4 (W = 117.5 mm) R Valve R valve interior, active ctenolium and thick shell apparent Byssal notch and fasciole Close up of original sediment, note the olive and gray coloration Profile Suwanee River, Hamilton County, Florida (Collector 2) Specimen 5 (W = 69.9 mm) R valve, subadult specimen R valve interior, shell is thick for a subadult Of the Miocene strata from Coastal Georgia and NE Florida currently described in the literature, the Ebenezer Formation of Weems and Edwards (2001) of Upper Miocene Tortonian age appears to be the most suitable match for these chesapecten. The Ebenezer was originally defined by Huddleston (1988) as a member of the Coosawhatchie Formation (Middle Miocene). Weems and Edwards later elevated it to formational rank based on differences in lithological and dinoflagellate composition compared to the rest of the Coosawhatchie. The Ebenezer formation consists of gray to olive-gray, fine- to medium-grained micaceous sand and stretches from South Carolina to NE Florida. Five mappable members are apparent and separable by distinct unconformities. The lower four members correspond to dinoflagellate zone DN 8, while the uppermost member corresponds to DN 9. Revision of the Ebenezer to Formational Rank from Weems and Edwards (2001) According to the dinoflagellate zonation of de Verteuil and Norris (1996), DN 8-9 aligns with the Little Cove Point Member (DN 8) and the Windmill Point Member (DN 9) of the St Mary’s Formation of Maryland and Virginia. Alignment of the Ebenezer to St Mary's Formation of MD and VA from Weems, Self-Trail and Edwards (2004) Notably, no other Chesapecten in this age range outside of Maryland and Virginia has been reported in the literature. All specimens display similar characteristics which include an acute byssal notch, differentiated byssal fasciole, slightly inflated right valve, and a hinge size in adult specimens that is relatively small for adult chesapecten with the exception of Chesapecten covepointensis (DN 8 St Mary’s Formation) and in some cases Chesapecten santamaria (DN 9 St Mary’s Formation). However, it appears that these shells can be divided into two distinct variants although the preservation appears to be somewhat better outside the Savannah River region and may exaggerate these differences. Nevertheless, the Chesapecten collected outside of the Savannah River Region exhibit stronger, more raised ribs and have thicker, heavier shells compared to the specimens collected within the Savannah River region whose shells are thinner and ribs are lower and less pronounced. This is especially true of Specimen 1. It is possible that these variants originate from different members of the Ebenezer Formation. According to Weems and Edwards, “outside of the Savannah region, beds no older than dinoflagellate zone DN 9 occur”. This suggests that the shells collected outside of the Savannah River Region likely belong to Bed 5 of the Ebenezer Formation. Figure 3 of Weems and Edwards (2001) [shown below] suggests that someone scuba diving for fossils in the Savannah River is likely to collect in Bed 4. Therefore, it is possible that the Chesapecten specimens recovered from the Savannah River belong to Bed 4 of the Ebenezer Formation. This stratigraphic information aligns with the observed morphological differences among the specimens and tentatively supports the significance of these variations. Needless to say, more specimens are needed to confirm. Lateral Gradation of the Ebenezer from Georgia to Florida - Fig. 3 from Weems and Edwards (2001) Ward (1992) has remarked that the period between Chesapecten santamaria (DN 9) and Chesapecten middlesexensis (DN 10) represents a considerable loss of the fossil record in the stratigraphic succession of chesapecten. These Chesapecten, which bear a strong overall resemblance to Chesapecten middlesexensis while displaying traits of preceding species (smaller hinge, more differentiated byssal fasicole), could help bridge this apparent gap. Personal Remarks The equivalency of these shells to the St Mary’s Formation, not the Eastover formation is surprising to me given the strong resemblance to C. middlesexensis. If anyone knows of any findings correlating DN 8-9 to the Eastover, or of the Ebenezer to DN 10 please let me know. Also, if anyone has any additional samples of similar shells from similar sites, even in SC please let me know. Thank you! References de Verteuil, L., and Norris, G., 1996, Miocene dinoflagellate stratigraphy and systematics of Maryland and Virginia: Micropaleontology, vol. 42 (Supplement), 172 p. Huddlestun, P.F., 1988, A revision of the lithostratigraphic units of the coastal plain of Georgia; the Miocene through the Holocene: Georgia Geologic Survey Bulletin, no. 104, 162 p. Ward, L.W, 1992, Molluscan biostratigraphy of the Miocene, Middle Atlantic Coastal Plain of North America, VMNH Memoirs, no 2, 152p. Weems, R.E, Edwards, L.E., 2001, Geology of Oligocene, Miocene, and younger deposits in the Coastal Area of Georgia: U.S. Geological Survey, no 131, 129 p. Weems, R.E, Self-Trail J., Edwards, L.E., 2004, Supergroup stratigraphy of the Atlantic and Gulf Coastal Plains (Middle? Jurassic through Holocene, eastern North America): Southeastern Geology, volume 42, p 191-216- 1 comment
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Took a trip out to the Aquia formation along the Potomac river on Friday, I tend to go to the Calvert Cliffs a little more frequent so it had been a little while since I’ve been to this site. We had some rough weather and high wind earlier in the week so it had my hopes high. I arrived on the beach a few minutes before sunrise. I started out by finding a couple heartbreaking Otodus teeth that were just buried enough in the sand to give me hope of them being full. Alas, three times in a row I unearth a busted tooth. Finally my luck began to turn when I found a gorgeous Paleocarcharodon orientalis! A rare tooth for this site and it was in great condition. I continued on and to my disbelief there was another amazing condition Pygmy! I couldn’t believe my luck, then I just couldn’t help but laugh when saw a third great condition tooth. I could go a handful of trips and not find a single one, and here I am with three! The biggest only being .99” but the serrations on them make my heart skip a beat! But that wasn’t the end of my day, I finally find nice complete Otodus measuring 1.31”. On the walk back I managed to snag two more smaller Otodus to round out the trip. It was a crazy day; the weather was amazing and the river was calm, I had a bald eagle flying over head and I found three amazing Paleocarcharodon teeth! Thanks for reading, until next time!
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Peace River - Wauchula, FL (Misc. + bonus tiny Jacksonville Beach, FL shark teeth)
Hurricanerin posted a topic in Fossil ID
Hi friends! I recently took a trek to the Peace River and went in in Wauchla, FL. I would love some help identifying what I found. I still need to photograph all of the shark teeth I found in the Peace River, but there is a pic of a few teeny tiny teeth I found in Jacksonville Beach, FL. I numbered things since there are so many. Thank you so much for your help! .- 8 replies
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Hi friends, I would love some help identifying these itty bitty teeth from Jacksonville Beach, FL. If there's anything I can do to take better pictures, suggestions are more than welcome.
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An afternoon excursion to the Frankstown Fossil site North of Tupelo, MS in Fall of 2023 resulted in one single shark tooth and a portion of an oyster shell. I am embarrassed to reveal that after about 30 shovels of sand sifted, the only tooth I found was in the prior sifting detritus of another fossil hound. Expedition injury report: I scraped my arm as I fell on the slippery clay attempting to descend into the creekbed. Win some and lose some. Time with an old friend was the best reward for this fossil expedition. darrell Barnes
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Hi all, Recently came back from a fossil hunting trip from a Miocene age deposit. Was looking through some of my finds and noticed that what I believe to be sand tiger (Carcharias taurus) teeth have striations on them. I am fairly new to shark teeth collecting and was wondering if only sand tiger's have them as I have not seen them on other genus. Wondering if anyone here that is more knowledgeable could shed light. Thanks in advance.
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Took a couple trips to Eocene/Miocene locations in Monmouth County, NJ. Thought I'd share some of my finds. First trip was on 11/17. Was a warm 60 degrees outside! Group shot of my finds. My first find was an erratic fossil from the Devonian with signs of bivalve/brachiopod, crinoid and Pleurodictyum. I also found this separate section of what I assume is a Crinoid stem Several bone pieces. Eagle Ray plate - my first ray plate found in NJ. Some of the shark teeth: Otodus obliquus - First time finding this species Otodus chubutensis - First time finding this species Physogaleus contortus Carcharias sp. Had to do some reconstructive surgery as it fell apart coming home.
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Hey all, I'm making a trip to Rocky Mount NC to visit some family and like going to Battle Falls, I have seen some shells along the bank of the river but wanted to ask if anyone knows if it's OK to collect teeth along the river. I know that they are there just not sure if it's ok to collect them.
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I just found this on the beach and honestly thought it was a shark tooth but didn’t realize only fossilized shark teeth are black. Is this a shark tooth? And if so, what kind? (The last picture is the inside and there is a fairly deep groove). Found in Gulf Shores, Alabama.
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A little while ago I complained about people measuring fossils to the nearest 1000th of an inch. A practice that is absolutely ridiculous. A thousandth of an inch is about the width of a human hair. (Probably white person human hair as other races have finer or thicker strands). If you are measuring forams under the microscope, this is fine. If you are measuring shark teeth and rex teeth that you can see without a magnifier, this is lunacy. Anyway, I just saw a post where an Indonseian shark tooth was measured to the nearest hundreth of an inch. Rather than hijack that thread, allow me to demonstrate my feelings on this. Here is the photo they shared; This measures 6.34 inches. That what it says on the calipers. But look at where the top of the caliper is. It is close to .03 inches off on the tip of the tooth. So this could be 6.31, or 6.32, or 6.30. Not sure. The point is.... that last digit is useless if not just plain wrong. Thankfully this tooth was not measured to the nearest number of human hairs. Math people call this concept 'significant figures'. This tooth is realistically and practically 6.3 inches long. The same happens when my colleague at work translates metric to inches. "It is 5 cm (=1.9685 inches) long". No it isn't!!! It is 1.9 inches. Did you measure the cm to the nearest ten thousandths? No, then why did you measure the inches to that fine detail? Yes, I give him a hard time about it. And, yes, maybe this is why it irks me on TFF as well. I urge people to not bother with the smaller units when measuring things this big. I am sure the sellers measuring these will never see my rant, but thanks for listening. Rant over. Carry on.
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I went out to a site that I haven't visited in a while, and it was a bust. Until. I was just getting ready to leave, and went back to a place that I had searched right at the beginning of the day and decided to search just a little more, and then I saw it, at first I thought it was just a fragment, but it turned out to be a complete posterior meg, and my largest one to date! It is always important to search twice, this find saved the day for me, and was a perfect end to the day.
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Had another early morning today, first time out since the time change so getting in the water for sunrise was a little difficult. None the less I launched the kayak around 6am and watched a beautiful sunrise on the water, then got to the beach to begin searching. Not to long after getting to the beach I found a great hastalis measuring 2.02” (my second biggest) and a few steps away found a nice little cow shark tooth! It slowed down from there finding a large fish vert (my largest) with the rest of my finds being a little further apart. Talked to a fellow fossil hunter on the beach who found a beautiful megalodon around 2.5” with great color, I was a bit jealous but it’s always nice to see other peoples finds. On the walk back to the kayak I found a nice little micro meg and some dolphin teeth to wrap the trip up. Another great day on the bay, I’ll be back soon!
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The places I hunt were over-run for the summer (particularly the place with 'different' cowshark lower laterals), so I took some time off. Less buggy now, beautiful time of the year (most times are!) Hit some old spots, mostly broken. Biggest tooth (hemi) is just over an inch long. Seemed more colorful, but still having issues with scanner.
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I’m a little late to getting around to posting this but it’s been a hectic week so far at work. I kayaked back out along the Calvert Cliffs last weekend and the weather was absolutely beautiful, getting close to if not over 80 degrees for the last weekend of October. I got on the water early to watch the sun rise and then started hunting. The nice weather definitely brought some more hunters out, with other kayakers, boaters, and jet skiers coming to the beach soon after landing. As expected it was a little slow but I still managed a nice little megalodon measuring 1.46” and a nice hastalis measuring 1.43”. As I was slowly checking out the shell line on the way back I found two micro megs, and a few dolphin teeth to finish the day off. All in all a great trip, love finding teeth and kayaking along the cliffs on a calm morning is just peaceful. See y’all next time!
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Seeking corrections and identification on shark teeth from Aurora, NC, USA (Miocene-Pliocene). Scale in mm. Thanks for any help you can provide! Sphyrna sp. (Hammerhead)? Carcharhinus sp(p). ? Carcharias sp.? Not sure. (Some kind of Galeocerdo?) Not sure. Not sure. (Carcharhinus sp(p).?
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Hello, Looking for help with these Upper Cretaceous shark teeth from Post Oak Creek, Sherman, Grayson Co., TX, USA (Warning: Some of these are heavily eroded). Thank you! Squalicorax? Species? Cretodus or Cretalamna? Mix of both? Scapanorhynchus sp? @ThePhysicist
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I am finally going through my Florida shark teeth. Most of these are from the Peace River. Hoping to get confirmations and corrections on my tentative IDs. I have numbered the groupings of taxa. Scale is in mm. No. 1: Galeocerdo cuvier? No. 2: Negaprion brevirostris? No. 3: Negaprion brevirostris? No. 4: Charcarhinus spp.? No. 5: Odontaspis taurus? No. 6: Hemipristis serra? No. 7: Galeocerdo aduncus? G. cuvier?
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Can anyone help I.d any of these shark teeth? All found at Bawdsey, Suffolk, or Felixstowe, Suffolk.
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Hey hi Everybody! I like the unusual teeth. And posterior teeth are some of the most unusual in any given species. So I thought I would start a thread for posterior shark teeth of any species. To kick it off..... Here are some from Shark tooth hill (round mountain silt). I think these are Carcharodon hastalis and (?) planus. The smallest one is just under 1/8th inch wide. So, if You have any posterior shark teeth - please post pictures here. Thanks, Tony
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Figured that I would share some photos of part of my collection so far. Fairly new to this game and sure that many of you have collections that are amazing! Please share some photos of some of yours, or your prized pieces. Would love to see them! The vertabrae with the doc numbers is probably my favorite piece other than what I have recently collected. It is from Bob Ernst's collection.
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I am trying to ID some of my teeth I have collected. I am a diver and I collected these teeth 20 miles ff the coast of North Carolina around 105 feet or 32 meters under water. Any help I can get will be great. James
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Hey all, I just returned from my first time at Caspersen beach, looking for shark teeth. I found a bunch of stuff, teeth, ray barb, and some other things that are puzzling me. I don’t think they’re just rocks. I know some are fossils, but I’d love someone to give me their input thanks
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I visited a spot along the Calvert Cliffs yesterday to do some shark tooth hunting. Over the summer I went on a few short trips where I brought friends/family (first timers) along, but I haven't been on a "serious" trip on my own since last winter. I found a few teeth and bones, but it was a tough day overall. The water level was very high for what was supposed to be a low tide leaving little beach exposed to collect on, the wind really picked up throughout the morning and the constant waves made it hard to search the waterline. There was also tons of sand accumulated which never helps. I spoke with 3 other collectors and all reported that finds were few and far between. One was a TFF member and we chatted for a while about kayaks (sorry, I forgot your username and tried searching for what I thought it was but nothing came up - please say hello if you see this!) Below are my finds for the day on 1/4" grid paper. Mostly small stuff but I found a couple decent hemis and a chunky fragment of what would have been a very nice megalodon tooth, probably in the 3-4" range if it were whole. I also found one of the largest cetacean bone fragments I've seen yet, at around 9.5"x2.5".
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