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I wasn’t expecting much from this weekend adventure, been having a dry spell with the last few hunts and a lot of misses. Gave it the good OL’College try again and oh did it pay off big time with finding not one but 2 teeth in extraordinary condition on back to back days and 2 different epochs vastly separated from each other geographically which is really cool. Time traveling but without the DeLorean! (Front and back photos of the larger tooth) 2 & 5/8 inches from tooth tip to the larger side of the root; which would be about 66 mm.

Found in Summerville, SC in a creek with Oligocene to Pleistocene. 95% of the angy I find here have obvious cusps, so these other 5% often confuse me. Chubs are rare in the area, so I think it has to either be a transitional angy or a meg. Just curious on what everyone's thoughts were, just so I know which of my Riker mounts to put it in. It's small at 1.25 inches. Thank you!

Hello I have recently purchased an UV flashlight. Under the UV light, I noticed that a couple of shark teeth are glowing fluorescent. I have two megalodon tooth and both are from Carolina; strangely only one tooth glows and the other does not. The otodus tooth fluoresce as well. Is to be noted that all three tooth are from different sellers, but have been reputable for selling genuine fossils. (However, I could very well be mistaken on the genuineness of the teeth) Suspecting a clear coat or vanish has been applied, I have proceeded to use a cotton swab soaked with acetone on both glowing tooth. But the teeth remains unchanged. Is there a reason for the fluoresence (especially on the Meg tooth - where it glows for one and not the other)? Is fluoresence on fossilized shark teeth a normal/common occurence? Is fluoresence on such a large proportion of a fossil an indication of fakery? Apologies for the many questions and, thank you and appreciate any help and advice on the matter.

Dear all, For as long as I can remember, I’ve always been interested in fossils. I am originally from the Netherlands but I grew up in the South of France. As a kid, you could always find me in the old abandoned quarry near to our house, looking for ammonite & sea urchin fossils on a heap of old stones! I am now 30 and I have moved to the Dutch Caribbean for work. Not having looked for fossils for about a decade, I decided with a friend to have a go at this old hobby of mine on a Sunday, on a spot rumored to feature loads of nice fossils. After 2 hours of searching and not finding jack and having been chased by a pack of wild dogs we decided to return home. But on our way back, on a spot that seemed interesting, we decided to have a final look and managed to find a whole heep of shark teeth. About 40 of them! I am very curious whether some shark teeth enthusiasts would be able to identify the species of sharks that once shedded these shining beauties! Especially the larger ones! Could they have been from great whites? or perhaps the Otodus sokolovi? Friendly regards, M.

Hey all! I’m in search of an Otodus Obliquus, specifically one from the US. I have other shark teeth to trade. I have some Cretaceous teeth, Megalodon, Angustiden, Some hastalis. If someone has one they may trade PM me! I’ll gladly send some pictures of what I have to see if we can make a deal! Thank you!!

Hello everyone, Recently just purchased this Auriculatus tooth from the Qsar-el-sagha Formation in Egypt. Whilst making a label for it I have learnt that there is a lot of debate on what genus it belongs to. The two options being Charcharocles and Otodus. It is my understanding that American Paleontologists believe it is from the Charcharocles genus as it has serrations (Otodus not having serrations). In juxtaposition eastern European Paleontologists believe that serrations vs non-serrations is not enough evidence for it to be consider a species of Charcharocles and believe it is a species of Otodus. Case and Cappetta (1990), the review of the Eocene fauna in the Fayum Depression of Egypt (where this tooth comes from) calls it a Charcharocles however several people have told me it does indeed belong to the genus Otodus. Was wondering if anyone here has followed this issue more closely and could inform me if there was now an “accepted” genus. Thanks in advance, Josh

So last weekend picked this up from another collecto. About 51 pieces of partial Megalodon teeth from Antwerp & Borseek, Belgium. These are quite more rare than you see in the USA or Indonesia for example. Biggest one measures around 5 inch.

I went to douglas point a few days ago, eager to get a large Otodus. What I did not expect to find was a skull fragment with teeth still embedded inside! None of the teeth are complete, but there is a lot of them, and it’s a pretty nice sized chunk of crocodile skull. I wasn’t even planning on doing douglas point that day, but we looked at both of the parking lots of both places, purse state, and douglas point, and I decided that zero cars was better than trying to navigate the beach with over 12 or so cars parked. There was no room for us to pull in anyways so I chose douglas point instead. The hunt started off very typically. I found a few goblins and sand tigers, some really nice bone fragments, and some busted up Otodus, one of which would have hit 1.75 if complete :(. But about half way through the trip, I found something odd. I thought it was one of the sandstone rocks from the zone 3 but it was colored brownish, so I picked it up and when I flipped it, there were rows and rows of teeth lining the bottom. I thought at first that I just found a jaw in the rock and did a little victory dance. It wasn’t until I investigated further that I came to realize that this was a piece of SKULL. WHAT?!?!? In my 10 years of collecting, I never would have thought that I’d ever find a skull. I was ecstatic! I will be taking this to the Calvert marine museum for further study and if they need this, I will give it up :(. That’s what a good scientist would do. Anyways, here are all the finds from that day. I found a lot. The whole haul: The whole haul flipped: Close up of the better stuff: I found 3 broken up Otodus teeth, a complete shark vertebrae, a scute, a coprolite with a fish scale inside, and a crocodile skull fragment. All the better stuff flipped: Underside of the skull: There are so many teeth in here! This is my first every crocodile skull, I’m now hoping to find the other pieces when I come back to this location. What a find! Coprolite: You can actually see what this animal had for lunch. This is a pretty neat fossil and would probably have been my favorite if not for the skull! Thank you for reading guys. I hope you enjoyed this trip report!

The era between the Miocene and Pliocene (23-2.3 Million Years ago) was, like the Carboniferous era 300 Million Years before, a golden age for the Chondricthyans. Not only was there a massive explosion in the diversity of grey sharks, but there was the emergence of perhaps the largest number of large macropredatory shark genera (sharks greater than 3 meters (10 feet) in length) currently known in Earth's geologic history. This includes the Giant Thrasher Shark Alopias grandis (which grew up to 13 meters (feet) in length) and the famous Carcharocles (Otodus) megalodon (which grew up to 17 meters (55 feet) in length). https://www.science.org/doi/10.1126/sciadv.abm9424 But this golden era of the giant macro predatory sharks wouldn't last, for between 3.8-2.4 Million Years ago there was an extinction event of large marine fauna that killed at least 14% of large marine fauna genera, including Carcharcoles (Otodus) megalodon. Though it's not entirely clear what caused this extinction event (some have hypothesized it could've been a mild gamma ray burst), C.megalodon's decline was due to the closing of the Isthmus of Panama by 4.5 Million Years ago (an area that was a C.megalodon nursery), a decline in diatoms that caused a decline in the food sources of many whales like Cetothere whales including Cetotherium (a known food source of C. megalodon), and Competition with the recently emerged Great White Shark (Carcharodon carcharias) and Orcas (Orcinus). By the extinction events end, most of the Miocene's large predatory sharks were extinct. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377595/ https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0084857 https://www.researchgate.net/publication/318160879_The_Pliocene_marine_megafauna_extinction_and_its_impact_on_functional_diversity https://royalsocietypublishing.org/doi/10.1098/rsbl.2020.0746 But there was a few genera that survived the extinction event 3.6-2.4 Million Years ago and lived long after it. These surviving taxon (likely surviving due to relying on different food sources then other large sharks of the miocene-pliocene) lived previously alongside C. megalodon and some survived up to at least the early Pleistocene (120,000-100,000 years ago). Here's a list of the large (non Great White Shark (Carcharodon carcharias)) macropredatory sharks of the late Pliocene-Early Pleistocene (If I'm missing any examples, let me know and I'll quickly add them). Hemipristis serra (Hemigaleidae, grew up to 3-5 meters (10-16 feet) in length) (Miocene-Pleistocene (Pleistocene strongholds: What is now Indonesia, Taiwan, South Carolina (U.S.), Alabama (U.S.), and Florida (U.S.)), 23.03-0.012 Million Years ago) Reconstruction 1 and 2 Image by artist @Tetrtophoneus, Image credit: https://www.deviantart.com/teratophoneus/art/Hemipristis-serra-871902574 Image by artist @HodariNundu (the two sharks below and next to the juvenile C.megalodon at the middle top are adult Hemipristis serra), Image credit: https://www.deviantart.com/hodarinundu/art/Mobbing-Meg-885731702 http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=83182 https://www.fossilguy.com/gallery/vert/fish-shark/hemipristis/hemipristis.htm https://www.researchgate.net/publication/364591134_A_previously_overlooked_highly_diverse_early_Pleistocene_elasmobranch_assemblage_from_southern_Taiwan Parotodus benedeni (Otodontidae, grew up to 7.6 meters (24.9 feet) in length) (Oligocene-Pleistocene (Pleistocene strongholds: What is now South Carolina (U.S.)), 33.9-0.012 Million Years ago) Reconstructions 1 and 2 Image by artist @imAdro, Image credit: https://www.deviantart.com/imadro/art/Parotodus-benedeni-908901669 Image by artist @SameerPrehistorica, Image credit: https://www.deviantart.com/sameerprehistorica/art/Parotodus-Size-882947974 http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=389883 https://www.petit-fichier.fr/2013/01/27/kent-b-w-1999-taille-parotodus-benedenii/? https://www.researchgate.net/publication/337937278_2019-canevet-a-review-of_the-extinct-genus-Parotodus https://www.app.pan.pl/archive/published/app63/app004542018.pdf http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&taxon_no=389883&max_interval=Quaternary&country=United States&state=South Carolina&is_real_user=1&basic=yes&type=view&match_subgenera=1 https://www.cambridge.org/core/journals/paleobiology/article/chondrichthyan-fossil-record-of-the-florida-platform-eocenepleistocene/2835CCEC27DC8EE0B24A5B62B1416618 Cosmopolitodus hastalis (Lamnidae, grew up to 5-7 meters (16.4-22.9 feet) in length) (Oligocene-Pleistocene (Pleistocene strongholds: What is now Japan, South Carolina (U.S.), Alabama (U.S.), and Florida (U.S.)), 30-0.012 Million Years ago) Reconstruction Image by artist @artbyjrc, Image credit: https://www.deviantart.com/artbyjrc/art/Going-to-need-a-bigger-boat-Lamnid-sharks-837971394 http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=265174 https://actapalrom.geo-paleontologica.org/Online_first/Chan_Cosmopolidus_planus.pdf Note: Cosmopolitodus hastalis was an ancestor to the extant Great White Shark (Carcharodon carcharias), along with living alongside the Great White Shark (Carcharodon carcharias) between the Miocene-Pleistocene. However, Cosmopolitodus hastalis’s being a member of the genus Carcharodon has yet to be confirmed). I hope you all find this helpful?

The Chondricthyans (including the sharks and rays) have been around and keeping the ocean's ecosystems healthy for about 420 Million Years. Today, in celebration of this, I've decided to do a little fun post and list the eight times in Earth's history truly massive chondricthyans have emerged. Hope you all enjoy!!! The First is the Devonian, where there is at least one confirmed fossil (CMNH 5238) of a large currently unnamed Ctenacanthiform shark that reached lengths of 4.2-5 meters (13-16 feet) in length. https://www.mdpi.com/1424-2818/15/3/318 The Second is the Mississippian stage of the Carboniferous (358.9-323.2 Million Years ago), a golden age for chondricthyans. The Early Carboniferous saw the emergence of Giant Ctenacanthiform sharks like Saivodus striatus, which grew up to 10-11 meters (32-36 feet) in length. https://www.uky.edu/KGS/fossils/fossil-of-the-month_2022-07_Saivodus.php https://www.uky.edu/KGS/fossils/fossil-of-the-month_2022-07_how-big.php https://www.nps.gov/articles/000/fossils-of-the-2023-national-fossil-day-artwork.htm The Third is the Pennsylvanian stage of the Carboniferous (323.2-298.9 Million Years ago). Like the Mississippian, the Pennsylvanian was also a golden stage for Chondricthyans where large Ctenacanthiforms continued to thrive and large Eugeneodontida edestoids like Edestus (which could grow up to 6.7 meters (22 feet) in length) emerged. Large Ctenacanthiforms from this time include the unnamed Graham Formation Gilkmanius sp., which grew up to 7 meters (22 feet) in length. https://bioone.org/journals/journal-of-vertebrate-paleontology/volume-37/issue-3/02724634.2017.1325369/A-Pennsylvanian-Supershark-from-Texas/10.1080/02724634.2017.1325369.short The Fourth is the Permian (298-252 Million years ago). There were some large sharks, like the Ctenacanthiform Kaibabvenator (which grew up to 4.8-5.48 meters (16-18 feet) in length). But Eugeneodontida by this point contained the largest Chondricthyans alive at this time including Helicoprion (which grew up to 7.6 meters (25 feet) in length) and Parahelicoprion (which could grow up to 12 meters (36 feet) in length). https://www.academia.edu/29941296/Chondrichthyan_and_actinopterygian_remains_from_theLower_Permian_Copacabana_Formation_of_Bolivia https://doi.org/10.1002%2Far.24046 The Fifth is the Early Cretaceous (145-100 Million Years ago). Though the time's aquatic ecosystems was dominated by large marine reptiles, large sharks managed to emerge and fill ecological niches from time to time. This includes the Early Cretaceous Shark Leptostyrax, which grew up to 6.3 meters (20 feet) in length. https://www.researchgate.net/publication/277782424_A_Gigantic_Shark_from_the_Lower_Cretaceous_Duck_Creek_Formation_of_Texas The Sixth is the Late Cretaceous (100-66 Million years ago). Aquatic ecosystems still were dominated by marine reptiles, but large sharks were indeed present. This includes Cretodus crassidens (which grew up to 9-11 meters (29-36 meters) in length) and Ptychodus (which grew up to 10 meters (32 feet) in length). https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0231544 https://www.cambridge.org/core/journals/journal-of-paleontology/article/morphology-and-paleobiology-of-the-late-cretaceous-largesized-shark-cretodus-crassidens-dixon-1850-neoselachii-lamniformes/A670012A44DDC68FC098BB8C73368408 The seventh is the Miocene-Early Pilocene (23-3.6 Million Years ago). This period saw the rise and reign of some of the largest sharks known currently in the fossil record, including Carcharocles (Otodus) megalodon (which grew up to 17 meters (55 feet) in length). https://www.uv.es/everlab/PUBLICACIONES/2017/2017 Martinez-Perez et al HB miocene sharks.pdf https://www.science.org/doi/10.1126/sciadv.abl6529 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9385135/ The eighth is the Early Pliocene-Late Pleistocene (3.6-0.012 Million Years ago). This period saw the last remnants of the large 20 foot + in size carnivorous sharks from the Miocene-Pilocene mega shark era not including the non-Great White shark (Carcharodon carcharias) and not including the large plankton eating sharks make their final stand. These include Hemipristis serra (which grew up to 6 meters (20 feet) in length) and Parotodus benedeni (which grew up to 7.6 meters (24 feet) in length). https://www.app.pan.pl/archive/published/app63/app004542018.pdf https://www.researchgate.net/publication/364591134_A_previously_overlooked_highly_diverse_early_Pleistocene_elasmobranch_assemblage_from_southern_Taiwan https://www.cambridge.org/core/journals/paleobiology/article/chondrichthyan-fossil-record-of-the-florida-platform-eocenepleistocene/2835CCEC27DC8EE0B24A5B62B1416618 I hope this is helpful?

Hi everyone! In an online auction I found this shark tooth. It is indicated as "Otodus megalodon tooth", found in West Java, Indonesia. Unfortunately there are no further details on the provenance. The shape looks very different than typical Megalodon teeth, but I admit I'm not an expert. Could it be another species of Otodus genus?

on a recent trip to barton, i found what i believe to be otodus auriculatus, but have never once heard let alone seen one found at that location before. was wondering if anyone here had found anything similar there

The seller states that this is a ~13 mm posterior O. auriculatus tooth from Bone Valley. It looks similar to the lower posteriors in this paper, but I would like to get a more educated opinion before adding it to my collection. Unfortunately, these are the highest quality images given.

Two recent trips to the Aquia formation along Maryland Potomac River yielded some pretty nice finds. First trip started slow just finding your average sand tiger and goblin shark teeth but by the end scored a few Otodus; unfortunately they were all worn with feeding damage but the largest at 1.95” is still quite the find. The two small Cretolamna were nice additions to the haul as well. Second trip the water was very high, even at low tide but I had they day off work so I wasn’t going to waste it, and I’m glad I went. Again all my Otodus have some damage to them but the bigger one measuring just under 1.7” even with the missing tip is a great tooth and one of my best Otodus from these locations. Top it off with two crocodile teeth and a nice shark vert and it turned out to be quite the nice hunt even with the high water.

Choosing a layout for my Obliquus "artificial" set, and wanted to see what you guys think. Largest tooth about 8cm, need some more small ones, but Im pretty stoked with this, now to build a box.

This is probably one of my best days out in the Paleocene I’ve had yet. I went to purse state park today and upon arriving, there were at least 6 cars. The beach was flooded with people, and boot prints were all over. It seemed well traversed. The tide was also coming in, with some of the beach inaccessible without wadders or high boots. It was slow going on the first half of the day but the second half couldn’t have been better. I was finding one stunning fossils after the next. This was a pretty good outing, and I will have to return as soon as possible. Here are all the finds: Everything pictured: I found a few sand tiger teeth, a back bone of some kind, 2 pretty nice sized Otodus teeth, and a complete ray mouth plate! This was a really good find I am extremely happy about this. Only a foot of beach had been exposed and I was finding a lot on these recently kicked up cobbles. Nobody had been around and the surf must have mixed up the gravel to the top of the beach where it was redeposited. A ton of people were on the beach, and there was a huge tide coming in, and this managed to be one of my best days in the Aquia. Closer up: A really nice little hound sharks tooth. These are my favorite tiny sharks teeth to find here. There is also a couple of sand tigers, a scapula (?) of some kind (crocodile? Turtle?), 2 nice Otodus teeth, and a show stopping ray plate to top it all off. This is my first complete large ray plate. I have a couple other small ones but this one is huge. Flipped: The ray plate is so cool. I am very happy that I came at high tide I think I will start doing that more often now. Lots of finds to be made! Ray Plate and Otodus: This was such a good day. I think the Aquia formation might be one of my favorites. I want to go out to Virginia at some point to collect the Aquia it’s been a while and I know there’s good stuff there. Thank you guys for reading this! I really had fun out there with a parking lot full of cars.

Recently, after going to my favorite fossil store, I aquired a Otodus Obliquus vertebrae. It came from a formation in Morocco, and is approximately 54 million years old, from the pliocene. Otodus is an extinct mackerel shark, related to the far larger O. Megalodon. The fossil is approximately 10.5 centimeters or 4.13 inches. I was wondering how large the shark would be relative to this vertebrae (assuming this was the largest vertebrae from the shark.)

I have been collecting the Aquia formation in several different locations over the course of a few months or so. I haven’t been able to post the finds yet, so I decided that after all this time, I would just group them all into one rather than do a bunch of different posts. The locations I got these from were pg county, and Douglas point. I found a lot of really good stuff, it’s been very productive lately and I’m especially loving the new site in pg county. A lot of good fossils have been coming out of there recently. I am really excited for some of the future trips coming up, but until then, I will show y’all the finds from these locations. PG county (1st location): This little creek has produced a lot of really good finds. Every time I go here however, I always end up finding a broken Otodus. I have never pulled a complete Otodus out of here in all the time I’ve been visiting. Someday it will appear. Here are the photos of all the finds: All the finds grouped together: Two incomplete Otodus, a couple sand tigers/goblin sharks teeth, and some stingray plates are all that was found at this location. A cucullaea gigantea (giant false ark shell) found at this location. Some of the shell was intact as well. Close ups of the bigger sharks teeth: The two Otodus teeth are both broken, with one being heavily worn, and the other having a sheared blade and cusplet. Why I cannot find a complete one here I don’t not know. There are also some sand tiger teeth pictured here that I found as well. Flipped: The broken Otodus to the right is so pretty. Too bad it’s not complete. Smaller sharks / fossil fish teeth: In this photo, there are small sand tiger teeth, a hound shark tooth, and some other smaller species as well. There’s some fish teeth pictured here as well. Smaller fish / shark teeth flipped: I really love the deep black on some of these teeth. I hope to find a bigger one in this color. pg county (second location): Now this place is one of my favorite to go to. It’s got a lot of ground to search, and the fossils that come out of here are in stellar condition. the invertebrate fossils that come out of here preserve extremely well, and the vertebrate material from here is quite abundant as well. Every trip there never leaves me empty handed. In the past I have pulled out multiple Gastropods, a complete Otodus, 3 complete crocodile teeth, large sand tiger teeth, and a whole lot more. I now have some of my best Aquia formation fossils from both of these groups thanks to my recent trips here. The finds are as followed: Vertebrate remains: I have found quite a bit here. These are some of my best vertebrate remains I have ever found from this particular formation. The finds pictured here include a monster of a crocodile jaw, that is one of my favorite finds pictured here. That crocodile would have been massive in size. I measured my largest tooth against its sockets, and it didn’t even compare. The teeth coming out of this croc would probably be 2 inches in length. It’s a really big jaw! I also found a really nicely colored greenish orange sharks tooth from a goblin shark. It’s pretty big as well. The smaller sharks teeth are nice as well. I love the color of some of them. Vertebrate remains close up: The croc jaw is truly the star of the show, but I love all the fossils that come from this place. I will be returning here soon and look forward to collecting here once again. Flipped: The edge of the bone is extremely detailed, and it came right out of the clay as well. It’s like the bone just fell off the crocodile. The teeth that come out of here always have a lot of colors, and can be orange, greenish tint, or white colored. I I’m normally used to blue teeth from the Aquia so it’s cool to get some unique colors out of here. The bone itself also can have purplish tones to it making it stand out, and I have some pictures of the bone color uo close. The preservation from this layer is outstanding and I hope to keep pulling good fossils out of here. Close up of croc jaw: I don’t know if it’s obvious but whenever you look at this bone closely the color is almost a light purple of lavender. It’s a really beautiful color and makes the fossil all the more interesting. Invertebrates (some shark teeth in rocks, and potential Native American activity?): I found some oyster shells, a really nicely detailed small Gastropod. A really large (5 inches length) gastropod, a couple shark teeth, and some rock that looked worked. I’ve been looking for Native American stuff and believe to have found some pottery from here and some large rocks with chucks broken out of them, almost looks intentional to me and not done by the earth. Anyways I’m always keeping my eye out for that kind of stuff. Fossils close up: The two gastropods are my favorite finds from this location. I love how hefty the first one is, and the second one is beautiful. It’s hard to extract fossils from this stone complete as the shells are extremely soft and the matrix is hard to break open with a hammer and chisel. Douglas point: I have found a lot here. I took two trips here, which have been both separated. The first trip gave me a nice fish jaw, an Otodus in superb condition, and a lot more. I found a lot that day. The second trip was a whole lot less finds but found a small croc tooth and a really cool looking paraorthacodus clarkii. Here’s all the finds from this location: First trip: I found a lot this day. A piece of pottery from the old plantation, a huge fish jaw, some nice sand tigers, and a bunch of Otodus including a beautiful sharp 1 1/4 inch Otodus. Closeup: Some of the better stuff found that day. Close up of Otodus: What a stunning tooth! It’s absolutely perfect with very minor blade nicks from feeding. It actually makes this tooth a little cooler that it had been used to eat something. Fish maybe? Crocodile? Turtle? Another shark? Who knows. Otodus flipped: I am in love with this tooth. This is one of my prettier Otodus teeth. Last trip: I didn’t find a bunch this trip. There was absolutely no wave action, the water was still, and there had been no storms. It was way too calm to produce any good finds. I still managed to scrape up a small crocodile tooth, and a paraorthacodus clarkii with broken off cusplets. Some nice sand tigers as well. Here’s all the finds: Not much found that day. here’s a picture of the orthacodus: Broken off cusplets but it’s one of the biggest and most peculiar looking orthacodus I have in my collection. Thank you all for reading! This was a really fun compilation to put together and I cannot wait to get back out there and find more fossils. I’ve done a lot of research and am very excited with what locations I have next in store to visit.

Recently I found a really interesting article rom 2021 describing fossilized specimens (in the form of teeth) of the giant shark Carcharocles (Otodus) megalodon from Buenos Aires Province, Argentina. Here is the article: De Pasqua, J., Agnolin, F., Rolando, A. M., Bogan, S., & Gambetta, D. (2021). First occurrence of the giant shark Carcharocles Megalodon (Agassiz, 1843) (Lamniformes; Otodontidae) at Buenos Aires Province, Argentina. Revista Brasileira De Paleontologia, 24(2), 141–148. https://doi.org/10.4072/rbp.2021.2.05 https://www.researchgate.net/publication/354201776_First_occurrence_of_the_giant_shark_Carcharocles_megalodon_Agassiz_1843_Lamniformes_Otodontidae_at_Buenos_Aires_Province_Argentina What really actually baffled me was the age the scientists who authored the paper assigned to the specimens. The specimen MMDA-1 was found close to the Atlantic coast in sedimentary deposits consisting of five depositional sequences (DS) dating between the Miocene and early Pleistocene eras. The authors state its possible the specimen came from DS5 or DS4, which date between the late Pilocene-early Pleistocene eras. If this is correct, this would make this incredible find even more incredible as it would represent the youngest known Carcharocles (Otodus) megaldon fossils (and no, I'm definitely not counting the HMS Challenger specimens as it's pretty much been confirmed those specimens are much much older than several thousand years old). Also, this is not potential proof C. megalodon survived into the Holocene! Though, I'm am a bit skeptical about the age give it was found in a pretty loose sedimentary deposit by the coast! What do you guys think? Do you think specimen MMDA-1 could be from the late Pilocene-early Pleistocene or do you think it could be older?

G'day everyone, Im pretty new here so I hope this is in the right spot. I am a hobby collector that is trying to put together a first row reconstructed set of Otodus Obliquus teeth. I would love to hear about any rescources or examples, pics or even advice or opions from others here, to help me choose tooth positioning and sizes. I have based my set so far, on a few pics of examples put together by other collectors like Hubbell, and Rathbone, and read a few old papers, but there is not much. Any advice would be greatly appreciated, and I can provide better pics if needed. If nothing else, hey just enjoy some pics of my Otodus teeth

A few days ago I took a trip to an Eocene/Miocene site in New Jersey with a friend. It was going be a quick trip so we weren't expecting very much. Not long after we started digging my friend scored a nearly complete Otodus aksuaticus. A little while later when I lifted my shovel out of the water I saw a big tooth fully exposed on my shovel. I instantly knew it was one of my biggest Otodus auriculatus teeth from NJ. This tooth measures 2 11/16 as it is and would've been over 3 inches if complete. It is my second largest auriculatus tooth from New Jersey. Despite not expecting too much, this trip ended up being a great one.

Hello everyone. I'm making my rounds across my different groups and forums, so if anyone has seen these photos before you'll have to suffer through them again. From June through the end of August I locked in on a concentrated area of sand tigers, makos, and my favorite mega-tooth shark: Otodus auriculatus. I didn't find one every trip out, but my most plentiful day gifted me 3, and my last trip out provided me with the largest tooth I have ever recovered from the garden state. I battled minuscule mosquitoes and a horsefly that was every bit horse as it was fly. Despite nature's best attempts to discourage me I persevered and wound up with 10 Otodus auriculatus teeth, a few decent makos, one whole and one half O. chubutensis, and a particularly nice cetacean tympanic bulla (ear bone). For anyone new to collecting there is disagreement over whether to classify the genus as otodus vs. carcharocles, but whether you go by O. auriculatus vs. C. auriculatus, we are discussing the same species. I enjoy collecting them not only due to their size, but because of the wide variation in shape, as well as their wicked serrations. You will find a picture of my rics down below. Additionally you will see a picture of a cetacean inner ear bone, either a whale or dolphin (as an aside dolphins are whales! but I digress). From my reading, there is no correlation between the size of a cetacean ear bone and the size of the animal it came from, still, my one and only mammal fossil that I am proud to have found. These finds are the culmination of many hours out in the field, and many more reading papers, talking with my friend, and my back begs me to reiterate, many, many hours in the field. While better quality and larger teeth have been found (many by my friend) they've given me hope that I may be able to find some exceptional pieces in the future. I've included a close-up of my larger ric as it shows its color with greater accuracy. The smallest ric is the most well preserved of the group, as smaller teeth often are. Thanks for viewing, Steve