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Showing results for tags 'theropod'.
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So when I purchased this tooth it was listed as Timurlengia, however I know there have been recent discoveries of both a large Dromaeosaurid and carcharodontosaurid from this formation. Is there any way to figure out if this is Tyrannosauroid for sure? Uzbekistan - Bissekty Formation @Troodon
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HI all! I am pretty sure this is a theropod tooth - it has carinae but only on one side. It's curve is odd though. I can't quite seem to place an ID on it. Any help will be appreciated! It's 4 mm
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Just purchased this phalanx toe bone. It was sold as Spinosaurus, however I guess it's impossible to ID it like that. Just want confirmation it's indeed a theropod phalanx toe bone. Location: Taouz, South Morocco Size: 4cm (1.58")
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Hello and good evening. I found that in an unexplored area besides a river ,in a village close to Athens, Greece. Through research i find many similarities with claws of small theropods. Its size is around 3 cm length. Any ideas what exactly is it? Appreciate your time.
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This is a digital study of the head of Rugops primus. I screwed up some of the teeth (too recurved). I really should know better, haha.
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- abelisaurid
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I bought this tooth and in my limited knowledge I'm not sure it's a raptor, I do not have a big collection of teeth to compare it to, so I figured I'll ask the experts. Hellcreek formation, MT. 4 denticles/mm it's the same both sides, 13.6mm CH, 4.2mm CBW, 9.07mm CBL both sides denticles look the same to me. If any more pictures are needed, I can get them. also sorry about the photos I'm getting a better magnifying device, my little coin one isn't too good for big over all pictures.
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New paper on cf. Spinosaurus dental pathology. https://www.sciencedirect.com/science/article/pii/S0195667123000277 Paywalled
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Hi all, Any thoughts on the ID of this claw? About 3 cm long, sold as ?dromaeosaur claw from Hell Creek, Slope County, ND. The phalanx was found in the same location but not articulated. I've chewed through the excellent "Identification of Claws/Unguals from the Hell Creek/Lance Formations" topic but can't quite fit it to anything!
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Hello! Looking to ID this asian theropod tooth from the late cretaceous of Bayankhongor, Mongolia that is supposedly from Alioramus sp. The serrations are quite worn for this rooted tooth and are hard to see, the entire tooth measures 60mm Below I've attached some pictures, thanks in advance!
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From the album: Hell Creek / Lance Formations
Interesting blue color near the base, and some feeding wear at the tip of this immature Tyrannosaurid tooth.-
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Even though I like and support the development of portraying dinosaurs as real animals instead of monsters, it is hard to deny that an encounter with a big theropod must have been a pretty scary experience.
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Hello, Another microfossil from Wealden. This is very small, 3mm. Now, it's recurved and looks theropod, but it is notable different than the typical small Nuthetes/raptor type teeth we get from there. It also looks different than croc teeth. It is small, 3mm with the tip missing. The base is largely encased in the matrix, but the little bit that is is exposed suggests it to be slightly oval in shape rather than round. There are no visible serrations. If anyone has any thoughts, that would be great, I plan to take it to a dinosaur museum I will visit soon for a look too.
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Small claw from the Kem Kem? possible croc, turtle or small theropod?
msantix posted a topic in Fossil ID
Hi, I know claws from the Kem Kem are very hard to identify since not much is published on them, but this is a small 2.1cm claw from the Kem Kem with a curved shape that makes me think that it might be enough to determine if it is theropod (as listed) or croc or even turtle. My gut tells me it is likely to be croc or turtle, but I think some members here might have claws just like this in their collection, so thought it would be worth asking.
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New controversial study shows how theropods were "smarter" than primates
Pliosaur posted a topic in Fossil News
Although the research regarding this was only published this month, there has been a lot of intense speculation and controversy as to whether theropods especially Tyrannosaurus Rex were comparable to being "primates" of their time. "According to her findings, theropods had as many neurons in their brains as monkeys do today, with the T-Rex boasting "baboon-like" numbers of up to 3 billion neurons. That's a pretty scary level of intelligence for a killing machine the size of a house.With that many neurons, a T-Rex wouldn't have just possessed uncanny cognition. It also might have lived longer, up to 40 years, Herculano-Houzel estimates. That's enough time and smarts to potentially be a social creature with its own culture, like primates and whales, and also suggests they may have worked together, too." Some great sources and videos, feel free let me know your thoughts on this below! The actual study can be found online and reported in the Journal of Comparative Neurology https://www.science.org/content/article/some-dinos-may-have-been-brainy-modern-primates-controversial-study-argues https://phys.org/news/2023-01-phylogenetic-bracketing-dinosaurs-neuron-density.html https://www.sciencealert.com/t-rex-was-a-lot-brainier-than-we-thought-researcher-claims-
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A guy is selling this tooth, accordingly a theropod from France, found in Cherves-Richemont quarry, Cherves-de-Cognac. It measures 1,5 cm in length. The seller says it is "allosaurid". I've been looking a bit around for some similiar teeth from the area, as well as species, and I find it a bit hard to find some good articles or pictures to cover this, but from what I can make out of it at this point, it may either be Nuthetes, or perhaps a french Neovenator? I had read recently, that they had found teeth in France, resembling the holotype of Neovenator, so that would make sense with the "allosaurid". There's a lot of disagreement about Nuthetes in general as well, from what I've heard. So what would you guys classify this tooth as? To me the shape does not look much like any dromaeosaurid.
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Hey all, Curious to know your thoughts on this tooth. The low CHR is tough... CH: about 13mm adding 1mm for worn tip CBL: 8.5mm CBW: 4.0mm Mesial serration density: 5/mm Distal serration density: 4/mm
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This is a pretty quick drawing to test out my new ipad. It is supposed to be an abelisaurid theropod enjoying a fresh kill. I roughly based the head on the skull of Rugops primus.
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Is this a real complete Dromaeosaurus
Fissiletag posted a topic in Is It Real? How to Recognize Fossil Fabrications
I recently saw a listing of a complete Dromaesaurus or some other Dromaesaurid. It is extremely complete, and I've never seen something like it for sale. Is it real?
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Hey all, Curious to know your thoughts on this tooth from the JRf in Hill county, Montana. I'm thinking tyrannosaurid, but not aware of tyrannos having things like DSDI=1.5 (granted, neither does Dromaeosaurus) or serrations that get 50% denser towards the middle vs at the base. Judith River formation, Hill county, Montana CH: 13.5mm CBL: 6.5mm CBW: 3mm Mesial serration density: 5/mm Distal serration density: 3.3/mm Serration density greater near the tip and base.
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Is this a genuine deltadromeus tooth? Mesozoic Era Late Cretaceous Period ▓Albian ~ Cenomanian Morocco Sahara Kem Kem Basin Size about 60mm If anyone knows, please let me know. Thank you so much to everyone on the forums.
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Here are a few photos of my entire collection spread out in my living room between 3 seperate tables and separated by groups; Table #1 Crocodilians, Theropod Dinosaurs, Marine Mammals and Marine Reptiles. Table #2 77 Different Shark Teeth Species. Table #3 Amphibians and Reptiles, Miscellaneous Fossils and Fish.
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Hey all, What do you think of this one? Hell Creek formation, Powder River co, Montana CH: 10.9mm CBL: 6.6mm CBW: 2.9mm Mesial serration density: about 4.8/mm Distal serration density: about 4.0/mm Distal serrations are pretty worn except those near the tip, which look fairly chisel, but have an apical hook(?) Thanks!
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Any thoughts on this tooth from the Two Medicine formation in Teton co, Montana? CH: 19mm CBL: 10mm CBW: 4mm Mesial serration density: about 4.5/mm Distal serration density: about 4.5/mm Apical hook on the few unworn distal denticles.
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Hey all, This looks Dromaeosaurus to me, but we'll have to see if it's even possible to make that call without any posterior serrations. But the dramatic mesial twist that happens close to the tip and the general morphology give me hope. Also, curious to know what your take is on the posterior edge. The posterior serrations seem to have been sliced off. The serration-like indentations inside the slice itself look a little like they might come from the serrations of another individual's tooth (i.e., face biting or something similar). This tooth got seriously used! JRf, Hill co, Montana CH: 12mm CBL: 6mm CBW: 3mm Mesial serration density: about 4/mm Distal serration density: POSSIBLY similar, based on what might be traces
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Hello, I've got 5 teeth from Niger I thought I'd post all at once to get ID input. Thanks for any help you can offer. (1) Labeled Afrovenator. Tiouraren Formation of the Agadez region of Niger: Posterior looks to be about 2.75/mm Anterior looks to be about 2.5/mm (2) Labeled Afrovenator. Tiouraren Formation (Niger) Posterior looks to be about 2.25/mm Anterior looks to be about 1.8/mm (3) and (4) Two labeled Eocarcharia. Elrhaz formation, tenere desert, Niger. Is it possible for the anterior denticles to not extend to the bottom on Eocarcharia? On both of these, it looks possible that they were worn away on the bottom portion, but looks a little more to me like they end. Maybe anterior teeth? (3) Posterior look to be about 3/mm Anterior look to be about ~~2.5/mm Ending of anterior carina (4) Posterior about 3/mm and less perpendicular than the others, I think NO SERRATIONS PRESENT ON ANTERIOR, given the wear facet. (5) Labeled Eocarcharia. Elrhaz formation, tenere desert, Niger. Separated from (3) and (4) because it seems different enough from them to draw attention to to the diff. Posterior maybe 3.5/mm Anterior maybe ~~3.5/mm THANK YOU!!
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