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Showing results for tags 'teeth'.
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Hello! Help please to identify this tooth. Is it Burnhamia? Length: 5 mm. Age: most probably Paleogene. Western Ukraine. Thanks in advance!
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Why are fossilized Great White Shark Teeth few and far between?
Jess1313 posted a topic in Questions & Answers
I've been looking around for a fossilized great white shark tooth for some time now and it seems like there just aren't many to choose from. The price also seems crazy for them. Are they more desirable than other fossilized shark teeth? It seems like I can get a small Meg for the cost of a Great White. My aunt has been wanting one, but I'm more confused on the price and availability of them. Are they more rare than Megs? Or are they just more desired? I don't want to get a modern one because of the way sharks are hunted. Does anyone know of why the prices and availability are they way they are?- 17 replies
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Found this in Eagle Ford creek bed, thought it was wood at first but think I see remnants of enamel or I wouldn't even take a guess at teeth. Bet this will be an easy one for someone. Thanks for looking!
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Hi everyone, I have a theropod teeth that I need help identifying. This tooth first came from a reseller from Morocco in 2019 (before Talsint teeth flooded the market). He promises this came from a Boulmane digger, and calls it a Jurassic tooth. Irregardless of whether this is a Jurassic tooth or not, the reseller is reliable when it comes to locality I have tried identifying this tooth but all my best guess is that it's a Megalosauridae indet. Here are its info: CH: 26.1 mm CBL: 13.7 mm CBW: 8 mm Distal denticle count: 13/5mm on mid line Mesial denticle count: 17.5/5mm on mid line Unique trait 1: Well visible transverse undulations Unique trait 2: Mesial carina ends well above the cervix. Even accounting for the worn tip, it's half the length of the distal carina Unique trait 3: Distal denticles significantly larger than mesial ones (DSDI > 1.2) I read "The distribution of dental features in non-avian theropod dinosaurs: Taxonomic potential, degree of homoplasy, and major evolutionary trends" but I am still unable to confidently assign a theropod family to this tooth. The lack of locality data from Boulmane further hurts the ID. Here are some of the relevant pages I highlighted from the paper: Regarding denticle size: Regarding the mesial carina terminating above the cervix: Regarding the transverse undulations: A compilation of features about my tooth and the potential IDs for it: If you have any insight regarding my tooth, I would love to hear it. Thank you
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Found these in our PaleoPack. I have no idea what the last one is. I'm thinking the first 3 pieces are Meg or Mako.
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Can anyone help me to determine the fossils on the pictures? They are all found were bone fragments from Pleistocene and/or Holocene material has been found. Could the teeth belong to Bos primigenius (Bojanus, 1827)? I think they belong to the above mentioned art. I also found some horse teeth at some locations. The brownish coloured teeth are from Zeeland. The black teeth are from Limburg (found in water/creeks). They are black and/or brown and fossil (not recent material judging by the colour and erosion).
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In February, I sifted at the shoreline on Caspersen Beach and Venice Beach, Florida. Finds include: (left) a crab claw & 2 ray tail barbs..... plus a variety of small shark teeth and ray mouth plates.
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Hi everyone! This school year has been incredibly busy which is why I haven't been on the forum as much as I'd like to be. However, about a month ago I ordered 3 lbs of washed "Texas Red Beds" (Permian-aged) matrix from PaleoTex - it arrived a few days ago, and I just couldn't wait until March Break to start looking through it (mainly because our March Break has been moved to mid-April - that's way too long to wait!!!) so I began the search last night. I've found a bunch of teeth and bones so far, and I was hoping to get some identification help for some of the larger/more interesting items that I've found so far. Thanks in advance to all who can help! I'll tag a few people who might be interested and/or who might be able to help: @grandpa @JamieLynn @jdp @dinodigger Here we go... Tooth 1 (three views) Tooth 2 (three views) Tooth 3 (three views) Tooth 4 (three views) Tooth 5 (three views) Tooth 6 (three views) Tooth plate ! (one view) Tooth plate 2 (one view) Bone 1 (one view) Bone 2 (two views) Bone 3 (one view)
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Hello all, Today I found two teeth and my girlfriend 1 tooth. Could anyone help us identifying the teeth? I thought Horse and Bison or Cow. But the teeth are quite big. And the big bone (second pic) what kind of animal is it?
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Hi all, I recently got into a discussion on the Dutch fossil forum about the definition of the term "carina", which my conversation partner equated to "the cutting edge of a tooth". They then further went on to claim crocodiles don't have carinae but rather apicobasal ridges that span the length of the tooth crown. Now I've used the term lots over the years and know @Jesuslover340 has also used carinae in the context of crocodile teeth. But as I can't find a singular definition of the term as pertains to teeth online, I was wondering how the term is officially defined - whether it might be possible that I may have been using it wrongly and under the wrong assumptions. So, basically: What are carinae? Are they the cutting edges of a tooth, or do they include the apicobasal ridges that are commonly found on the mesial or dorsal end of reptile teeth? Are carinae necessarily serrated? Is use of the term "carina" taxonomically restricted? Does the term apply to crocodiles, for example? I possible, I would like to try and get at an academically recognized definition of the term. Or, failing that, get insight into the academic discussion as to its meaning.
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Hi all! I have been using my new scope and camera to get some better photographs of conodonts I've recently found in nodules in Pennsylvanian Stark shale between Winterset and Bethany Falls limestone. I have found 4 of these 500-700micron, tooth-like structures-I destroyed several inadvertently removing the "carbonized film". Two of the 3 most recent are not connected to anything, but have a broad base. In the 3rd photo, you can see what appears to be a joint where the "tooth" connects. I am waiting on finer needles to clean this one. Though I call them "teeth", I don't really think they are-they are not conodonts that I can tell, and in a couple nodules, there are other "carbonized" pieces present (you can see portions in photo two). I think these are really cool!!! If anyone has even a thought about what they could be, I'd appreciate it, as always!! Bone
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I've started my journey into finding places to hunt along the KAW. With advice from people here and some research on my own, this week I've done some "test pits" where I'd take an hour or less before work testing out via walking around a site and see what I can find, to see if it's worth returning to. And so far I've had great success. I've found multiple pieces of bone, teeth, shell and marine animals (Fusulinids, crinoids, bryozoans, etc). I made a longer visit to the best site I've found yet and recovered more pieces. It's all been just surface searching, with only minor digging in for partially exposed pieces. I've still got to take more photos, but I wanted to share some of my recovered pieces thus so far. I've not yet identified the animals to what I believe to be pieces belong to, but they're still exciting for me. Long curved tooth is some rodent, probably muskrat. I've been trying to identify what kind of turtle the fragment belongs to. The rib and vertebrae, I'm unsure what the animal is from the fragments. Looks like some large mammal tooth or horn fragment. I've been pretty excited about the large amount of biodiversity I've uncovered in the small areas I've visited. I'm looking forward to more trips into the field.
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Hello! Help please identify this tooth. Height - slightly more than 1,5 mm. Age - mot probably Eocene. Location - Western Ukraine. Thanks in advance!
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Hi hoping for a bit of help with a couple of shark teeth finds from the Eocene (42mya), Bracklesham group in Whitecliffe Bay on the Isle of Wight. I don't often find shark teeth so not sure about the ID so hope someone on here can help. Walking back to the car I found a vertebra in the sand washed out from the cliff, (cliffs are Bembridge Marls / Solent Group or early Oligocene - about 34mya) my initial thought was turtle but something about the shape is making me think lizard so again would appreciate any help with the ID. (Grid in the photographs is 5mm square). If other views would help please let me know and I will post them as well. Any help would be much appreciated, Cheers Martyn
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A few more Indonesian megs - any restorations?
patrickhudson posted a topic in Is It Real? How to Recognize Fossil Fabrications
A few more Indonesian megs here I’m looking into. I’m mostly concerned about the roots and cementum areas. any major restorations you are seeing? I love the colors of the blades and just want to make sure I’m not getting hosed on anything fake. Thanks so much for all your input and expertise .
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I bought a set of shark teeth from the Eocene of Fürstenau, Germany. I have some pretty decent shots of them, though these are the only photographs available for now. 1 cm - 3.5 cm is the range Really I have no idea on species, and nor does the seller. Some appear to be sand tigers, and indeed upon researching the locality those are described from there. Others from that locality include Otodus auriculatus and Isurus praecursor, and those were the ones I was really after. And while I cannot seem to see any of the former, I do believe a few are Praecursor. I'm attaching photographs here. The third photograph has the teeth I believe to be Isurus praecursor highlighted. Could anyone confirm this? I'd also appreciate any IDs on the others. Thank you, Bellamy
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Hey all! i have an unprepared Brontotherium Jaw section up for trade. It’s from the Badlands, South Dakota, United States. It’s a really cool piece that displays well, I’m just looking for something new for my collection. I would be interested in trading for Dire Wolf teeth, an Eremotherium Tooth, other giant ground sloth teeth/claw cores. PM me offers or any questions. Thanks!
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Hello! Help please with id. Length - 5 mm. Age: probably Midle Miocene, bt not for sure. Western Ukraine. Thanks in advance!
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First million-year-old DNA extracted from Siberian mammoth teeth
Oxytropidoceras posted a topic in Fossil News
Scientists analyse ‘world’s oldest DNA’ recovered from mammoth remains up to 1.2 million years old By April Roach, Evening Standard, February 17, 2021 First million-year-old DNA extracted from Siberian mammoth teeth By Michael Marshall, New Scientist, February 2021 The paper is: van der Valk, T., Pečnerová, P., Díez-del-Molino, D. et al. Million-year-old DNA sheds light on the genomic history of mammoths. Nature (2021). https://doi.org/10.1038/s41586-021-03224-9 Yours, Paul H. -
If you haven't read my 'about' on my profile, then... What are you doing? I'm the best person on this forum, duh, you should've memorised it by now(!) Jokes aside, I love conodonts. The gorgeous little extinct wigglers that resemble eels... They're so common, that they're used as index fossils. What does that mean? People identify the age of fossils, based on conodont elements found with them... That's crazy! How does this work? Well, evolution changes animals over time, as you'll know, which means, due to the abundance, and date range of the specimen, you can work out age of sediments based on the morphology of the fossils... Pretty cool, huh!? And not even just that, as they're made out of apatite (not appetite :BigSmile:), the colour of the fossils can indicate the temperature of the fossils... Wow... Here's the Conodont Alteration Index (CAI), taken from CAI - Wikipedia: Little fact here - conodonts first appeared in the Cambrian, about 540 mya (million years ago), and only went extinct yesterday. Uhm, sorry, let me check my notes on that - ah, in the early Jurassic / late Triassic, about 200 mya... Time flies, feels like it was last week the Mesozoic began! Here's a nice reconstruction of one. You can see the similarities between them and eels, but, although my friend Daniel likes to annoy me by saying "Isaac likes extinct eels", they are not eels. Notice the rather colourful array of teeth? Here's a full set: Looks like something out of a horror movie, huh? That's why I love 'em! Oh, also, here's some nice papers that I'd recommend: Overview of the conodont's history Conodont skeletal morphology Right, what was the point of this? Oh, yeah. Unfortunately (well, I say unfortunately, but it's a blessing), I get my material from the Cotswolds, in the south of England. If you've never heard of that, it's an incredibly famous area, famous for its Middle Jurassic oolitic limestone, abundant in microfossils. Have a link to everyone's favourite site's page on it Wikipedia - Cotswolds. Now, unfortunately, Middle Jurassic means that I can't get any of the little chordates... Ugh! Anyone care to share photos of their specimen, so I have a reason to cry?
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Greetings everyone. I collected this pretty little tooth on one of my Summerville, SC trips when I lived in Georgia. It's escaped scrutiny until now. While it unfortunately lacks the root the uniqueness has made me pursue an ID anyway, although it might not be possible. I have considered a serrated Alopias grandis based on the depth, irregular serrations, and overall shape. I've also considered a juvenile Otodus angustidens but I'm having difficulty finding good examples so a lot of comparisons are instead made with other Otodus species. I'd be interested in seeing what others think. @sixgill pete @Al Dente @MarcoSr I know you all had input for a similar thread a few years ago and I'd appreciate your thoughts.
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I found this Proboscid tooth on a riverbank in Kenya. Is it a recent one from L. africana or something older? It is about 9 or 10 cm long.
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Hello! Could it be Mustelus sp. tooth? It has some "serration" in interesting part of enamel (see arrows). Length - 2 mm. Age: most probably Miocene. Location: Western Ukraine. Thanks in advance! Kolya
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I was going to do some more exploring of new areas (trying to find a Calvert exposure until I can get the boat in the water since everything’s closed) but I decided to go back here yet again. I made a pretty good decision I think because I found a bunch of shark teeth that are of decent size, and a killer shark and fish vertebrae. I also found a small block of Calvert formation here too, and I found a lot of it exposed on another piece of land a few weeks ago, but then turned around after seeing a bunch of “no trespassing” signs posted all up and down. Go figure. So until I find another viable area, I may just keep coming back here, particularly since it’s giving me fantastic fossils. Here’s the spoils from yesterday. Shark vertebrae from the site. Very small! Here’s the fish vert, biggest and nicest one I’ve found there. Here’s some teeth, including goblin/sand tiger, a hound tooth, and a mystery tooth that may be a posterior from the sharks listed above. Anyways. that’s about it from the site. Every time I visit I always walk away with something nice. Hopefully, I can find some good Calvert formation that’s close to DC before it gets too warm.
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I found these two teeth, and I would like to know if they are small megalodon or angustidens teeth?
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