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I found this tooth yesterday and it's not really like anything I've seen in the past. It appears to have been altered at some point after it was shed. In the first picture you can see that the left side is cracked, yet the right side is warped and completely fossilized. Can anybody tell me what causes this? @Troodon

Id please

Hello All, I had forgotten I had picked this up a Big Brook the other day. Definitely looks toothy. Nice size to it as it measures 1.5" (38mm). Not a sharks tooth. Perhaps Sawfish rostral tooth? Thanks!

I suspect this is just an ordinary bit of flint but I wanted to ask you all for your opinion just in case. I found it amongst gravel on the garden path outside my home in Scotland. The the width of the widest end is 1.4 cm, the thinnest is 0.9 cm and the full length is 3.1 cm.

I've had this tooth for about a year now after I found it on the Brazos River near Houston last summer. It's definitely fossilized and has the exact same texture and weight to it that all of the other fossils I've found in roughly the same area do. As far as I can tell the whole tooth is still there, but unfortunately the occlusal surface that makes identification the easiest is almost completely worn down, I'm assuming by the animal's age at the time it died. I've tried matching the shape of the top of the tooth with others I've found pictures of, but the issue is the pea-shaped "pinched in the middle" look is very common amongst many mammal species - tapir, deer, sloth, etc. The other thing throwing me off is the single root it appears to possess. If someone could help me with identification or point me in the right direction I'd be very grateful!

Hi all! I picked up this little beauty (14mm at its longest) last week at the North Sulphur River. Unfortunately, it’s not complete, but I like it anyway. I immediately assumed it was Mosasaur (I have been a regular hunter at that location for a few years), but now I am second guessing myself. Can someone confirm or refute? Apologies in advance if there are any issues with the photos; I am posting directly from my phone, so hopefully they are not too large, but good enough quality.

Better pieces of my Woolly Rhino and Mammoth teeth/molar Biggest mammoth tooth is around 11/12 lbs Biggest rhino tooth is around 4,5 inch

Hi, I went looking for fossils at Big Brook park recently and found this. I'm unsure of what it is? To me it definitely looks like a fossil maybe a sawfish tooth but I'm unsure. It doesn't really match anything I've seen on any sites.

Hey everyone! I just received a few teeth from the Kem Kem Beds near Taouz, Morocco. Among them one has me particularly stumped - I’ll do my best to provide as much information as possible, but let me know if more is needed! The tooth was listed as a theropod, though even the seller thought that assignment was only tentative. Its total height is 14mm. As the pictures above show, it’s moderately recurved as well as slightly curved lingually, with very distinct flutes running the whole length of the crown, 6 lingually and 9 labially, with the lingual flutes appearing stronger. It’s mediolaterally compressed, with a flat (or slightly concave?) lingual and more rounded labial profile, and a slightly lingually offset mesial carina. The distal carina reaches the base of the crown, whereas the mesial carina stops slightly short of it. The serration density on the distal carina is about 5/mm, on the mesial carina it’s about 7.5/mm (definitely noticeably smaller), getting more dense towards the base. When it comes to weird carnivores there’s of course no shortage in the Kem Kem, with a plethora of unusual teeth without a known owner. So far I haven’t come across one quite like this. I wouldn’t want to exclude the possibility of it being a theropod completely from the start. Still, my first thought went to Notosuchia: There’s an abundance of notosuchians known from the Kem Kem Group, probably as many described as undescribed. For one, there’s the small uruguaysuchid Araripesuchus rattoides (SERENO & LARSSON 2009), which can be excluded pretty easily. Aside from A. rattoides teeth being generally far smaller, the morphology doesn’t fit either: Specimens such as MNN GAD19 illustrate well that the largest teeth in Araripesuchus, its caniniforms, are recurved, but far more bulbous than what we are looking for. The other parts of its dentition are highly heterodont, with mostly small, low, rounded crowns. Additionally, none of its teeth are fluted in the fashion we see here. Next in line are the peirosaurids Hamadasuchus rebouli (BUFFETAUT 1994) and an as of yet undescribed taxon likely closer to more derived peirosaurids, Peirosauridae B [ROM 52620 and ROM 49282]. The latter is often attributed to H. rebouli, but will hopefully be revised after the description of BSPG 2005 I 83. IBRAHIM et al. 2020 lump everything into Hamadasuchus, but didn’t do their own analysis and note that reevaluations are in order. Similar to Araripesuchus, peirosaurids are highly heterodont, with conical anterior teeth and lower, more robust posterior teeth. The relatively high number of specimens helps in this regard: While recurved, the anterior teeth in Hamadasuchus are subconical and not overtly fluted. The posterior teeth, while possessing serrated carinae and showing some fluting, are far more stout and bulbous. In Peirosaurid B, the anterior teeth, most notably the caniniforms, are indeed fluted and recurved, but are very conical and do not possess serrated carinae. The posterior teeth, while possessing serrated carinae, some mediolateral compression, and being overall taller than in Hamadasuchus, are not recurved or fluted, but symmetrical and far more blunt than the pointed form we are looking for. Lastly, there are the ziphosuchians: IBRAHIM et al. 2020 use ‘Candidodontidae’ CARVALHO et al. 2004, though they note it’s unclear what exactly this family comprises of, so it might be best to treat its members simply as basal ziphosuchians. Libycosuchus brevirostris (STROMER 1914, 1915) has very little preserved in terms of teeth, and sits between other notosuchians which have very strange dentitions themselves. Looking at relatives such as Candidodon (CARVALHO & CAMPOS 1988), it would appear that these basal taxa would also have had mostly heterodont dentitions with conical anterior and low posterior teeth. Additionally, BUFFETAUT 1976 notes that the teeth appear to have been comparatively small overall, which appears right when looking at the alveoli of BSP 1912. I couldn’t find any reference to fluting or serrations in its immediate relatives, only in the far more derived members of this group, called ‘advanced notosuchians’ by POL & LEARDI 2015. There’s some evidence that animals similar to these younger South American taxa might have existed in the Kem Kem noted by IBRAHIM et al. 2020, but even then, the anterior teeth in this group show a consistently conical or teardrop-shaped cross-section, not the compressed shape we see here. IBRAHIM et al. 2020 go on to refer some material to Sebecidae SIMPSON 1937, though this is likely due to the general instability in notosuchian taxonomy. The material isn’t described in the text, but is highly doubtful to be from a true sebecid, as that family is only known from the Maastrichtian onward. Quite frankly I’m at a bit of a loss. I know trying to ID Kem Kem teeth too often ends in ‘We just don’t know’, and having looked at the options I haven’t made much headway - the tooth doesn’t really resemble anything that’s described or goes into the direction of what’s undescribed and fragmentary, at least to me. So I’d like to hear your opinions - is there something I have grossly overlooked? Is it just a very weird notosuchian or something else? Could it be a theropod after all? I’d love to hear your thoughts! Thank you very much for your help! BUFFETAUT, E. 1976: Der Land-Krokodilier Libycosuchus STROMER und die Familie Libycosuchidae (Crocodylia, Mesosuchia) aus der Kreide Afrikas BUFFETAUT, E. 1994: A New Crocodilian from the Cretaceous of Southern Morocco CARVALHO, I.d.S., & CAMPOS, D.d.A. 1988: Um mamífero triconodonte do Cretáceo Inferior do Maranhão, Brasil CARVALHO, I.S., RIBEIRO, L.C.S. & AVILLA, L.S. 2004: Uberabasuchus terrificus sp.nov., a New Crocodylomorpha from the Bauru Basin (Upper Cretaceous), Brazil IBRAHIM andabunchofothers, 2020: Geology and Paleontology of the Upper Cretaceous Kem Kem Group of Eastern Morocco POL, D. & LEARDI, J.M. 2015: Diversity Patterns of Notosuchia (Crocodyliformes, Mesoeucrocodylia) During the Cretaceous of Gondwana SERENO, P.C. & LARSSON, H.C.E. 2009: Cretaceous Crocodyliforms from the Sahara SIMPSON, G.G. 1937: New Reptiles from the Eocene of South America STROMER, E. 1914: Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens. II. Wirbeltier-Reste der Baharije-Stufe (unterstes Cenoman). 1. Einleitung und 2. Libycosuchus @Troodon

Hello all. I picked up these teeth from a charity shop. I'm pretty sure they are shark teeth, and just bought them to pop in my curiosity collection, but when I was researching I didn't think they were the 'typical' shark style. I was wondering if anyone could help me identify the species it has come from?

I am looking for nice chubutensis tooth and I saw this on online. Please help me figure out what this is.. Is this a chubu or meg? I know nothing about locality of this fossil except Southeastern US..

Just found what appears to be some kind of rodent molar in big brook, New Jersey. I know that there are both pleistocene and modern mammal fossils at this site, is there any way to tell if this is a fossil or a modern animal?

Live in Southern Maryland. Found this in creek feeding to the Patuxent River. Have no idea if it’s a plant or tooth or tusk of some kind. Also have found many Miocene shark teeth, a wild boar skull from the 1500s, and arrow heads. Thanks for the help

As a dinosaur tooth collector since 2018 I have been fortunate enough to obtain the majority of species I have been looking for in a relatively short space of time. That being said, in the last year I have noticed there has been a severe shortage of high quality dinosaur material available. Not just online but from private collectors too and those that have been available, the prices have shot up considerably compared to a couple of years ago for example. Perhaps Covid 19 is a cause of this. Im just curious as to why people may think this is and their theories behind it. Are people realising the worth of what they have and keeping hold of them? Is material simply drying up in the field? I’d love to hear your views and if anyone else has noticed this shortage in higher end dinosaur fossils, teeth in particular and also the drastic increase in prices for those that have become available (I appreciate prices and specific examples cannot be discussed).

Hi! This is my first time here so may i most embarrassingly start by asking if this is even a tooth? Found along Red Deer River in Alberta a few km south of Tolman Bridge (in Horseshoe Canyon formation). I found it washed up in an erosion channel. Thank you, Danno/

Hey folks, A friend of mine gave me this tooth for cleaning his house but has no idea what it is. We know nothing about this tooth but I think it looks horse like.

This is another one from Marlboro NJ. I can't figure out what it is. I thought maybe a tooth.

Hi, we found this in Charmouth beach, do you think it may be a tooth or a claw? Thanks!

I bought this megalodon tooth the other day and was wondering whether it is real or not. I added images of it from the front and the back

Hi all, I bought this from a car boot sale, from a seller who sells fossil's. The seller said it is a spinosauraus tooth. I had a look online and saw that spinosauraus teeth are typically rounder, whilst this is very pointed and quite thin. The seller did sell larger round ones, as well as these smaller more narrow teeth. I chose this one as it was the least broken. I can't really identify what a fake tooth would look like. Could someone tell me if they think this is a real tooth or not?

Hello again. I saw this supposedly Daspletosaurus tooth, said to be from the Two Medicine Formation, Montana. It measures approximately 1.5 inches. If you could help me, I would appreciate it. Thanks

I'm assuming this is a fish or ray tooth, what type is it? Found at Big Brook (little bigger than a finger nail) Found this tooth at Big Brook and was wondering what type of tooth this is?

This is a spinosaur tooth from Kem Kem Formation, Morocco. I obtained this from online. It is a large tooth, with length of 3.5" , and seems like broken into several pieces and repaired. I don't see any restoration in near-root area. Very white, clean. broken tip, which is very common for spinosaur tooth. Sadly, it broke into two pieces. The tooth is more fragile than I thought... The broken side shows shiny ivory color. Is it okay to use LocTite super glue?

Found this tooth and Peace River would like to know what it's from