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Showing results for tags 'theropod'.
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From the album: Dinosaur Teeth
Tyrannosaurus rex tooth from Hell Creek Formation, South Dakota. -
From the album: Dinosaur Teeth
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From the album: Dinosaur Teeth
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From the album: Dinosaur Teeth
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From the album: Dinosaur Teeth
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From the album: Dinosaur Teeth
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According to the seller this is a parietal skull bone from a Kem Kem theropod, likely abelisaurus or carchadorontosaurus. Opinions? Kem Kem basin, Tegana fm, Red Sandstone Beds. Taouz, South Marocco. Size: 19 cm (7.48 inch)
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This is a decent sized footclaw from Niger. I do get they are very hard to identify with species and that is not what I'm after. I am however after if its a Theropod claw or a Sauropod?
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Hello everyone, new to the forum here, I got a dinosaur tooth from a friend and was wondering if anyone can identify it. It’s about 1 inch and was discovered in the hell creek formation and in the powder River county. Let me know your thoughts and thanks in advance!
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I ordered these two teeth yesterday off an auction site. Both sold as undescribed theropod. Now, I see no theropods are actually desxribed from there--but if anyone is able to narrow it down to a family or something that would be great. Only a small amount of visible serrations unfortunately which will make it hard. The second one, I am wondering if it may actually be Razandrongbe because of the rounded base. Tooth 1 -- 1 inch Tooth 2 - 0.69 inch The full location is Ambondromamy region, mahajanga basic, madagascar. isalo IIIb Formation. To stop the teeth photos getting mixed up in uploadimg, this first page is tooth one. I will replymwith tooth 2.
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I see what I think are serrations on this very small tooth fragment. Is this Theropod? If so is it possible to id?
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Hello, I hope someone can help identify this claw from Niger. As with almost all material from Niger, information about where it was found is not available. But I hope someone has an idea based on the external features. So far, two possible options have been mentioned for this approximately 4 cm / 1.6 inches theropod claw. The options are two theropods that fall within the Noasauridea family. Option 1 is an Afromimus (Elrhaz formation, early Cretaceous) and option 2 is a Spinostropheus (Tiouraren, middle Jurassic). There's Hematite on the claw. Hope someone has an idea. Thanks in advance! - Mike
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I was looking at some of my small theropod teeth, but I was not 100% sure what the best ID for these two teeth were. Any input or help would be appreciated. These were sold as Nanotyrannus, but very small chance of dromaeosaurid and Aguja dromaeosaurid respectively, but I think they might be Richardoestesia cf. gilmorei. The cross-section of the Hell Creek tooth I think rules out Dakotaraptor, or at the very least, does not match the known morphology. Edit: Oops, I used the really funky side of the ruler I'm using. I was going to use the millimeter side, but ending up using a side that measures 20mm per. The measurements are accurate though as I used calipers for that. Hell Creek Formation; Garfield County, Montana CBL: 6mm CBW: 2.4mm Mesial Density: 8-9/mm [Towards end of carinae] Distal Density: 11/2mm (5.5/mm) CH is a bit difficult since the tooth has heavy feeding wear, but it is 8.3mm tall, but could be significantly higher. The mesial carinae does not appear to extend to the base. Aguja Formation; Brewster County, Texas CH 6.4mm CBL 3.7mm CBW 1.4mm Mesial Density: Possibly worn down, or none Distal Density: 16/2mm (8/mm)
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Hi! This compressed, incomplete tooth is 2,9 cm long and has fluting and tiny serrations of the right dimensions for a Suchomimus tooth. Yet it does look quite different than some other Suchomimus teeth I have seen online, so I would love to hear your opinions. The location given is Gadoufaoua, Tenere Desert, Niger, Elrhaz Fm. Thanks!
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Any idea what this little tooth could be from? It was found in the Hell Creek formation outside of Faith, South Dakota. It has no serrations and the seller says it may be a juvenile richardoestesia.
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Is anyone able to actually ID a claw like this? It is 9CM straight. Footclaw or handclaw even? Niger claw as you can see. And I am aware there is not that much information to ID a claw. But this one is pretty much complete.
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- afrovenator
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Hello! I got these stuff from Kem Kem. Any help with id? - Maxillar theropod? - Turtle claw? - Theropod indet? - Theropod indet? Thank you so much!!!!
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Hello everyone. A few weeks ago I received this piece of matrix with remains claimed to be Allosaurus, from the Morrison Formation. I'm not sure if they're even dinosaur, but I bought them anyway to experiment with cleaning it. What is highlighted in green, in the first photo, is where I was cleaning up with a dremel engraver. From a previous post that I saw on the forum, where someone was asking about this same fossil (I apologize if I bought it ahead of time), I read that they suggested just exposing the bones a little more, and preparing the matrix. It's what I'm doing. But since I don't have paraloid or butvar, in some parts to reinforce the fragile bones I applied super glue, one that is quite liquid and absorbs very well through the cracks, I apply it by drops using a syringe. Maybe I did wrong, but it is the only thing that could have been done in the absence of something better, and I find that it has stabilized the bones very well so that they do not crumble. In the parts highlighted in blue in the first photo and those that follow, there are spaces in the matrix where there was bone, which surely eroded and only the mold remained. The matrix is quite hard, so I don't think it needs any additional need. My doubts are: a) Are Allosaurus rib fragments effectively treated, as suggested in the publication? b) If they are not, is it possible to tell if it is a theropod, sauropod or other type of animal? Thank you very much in advance.
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Hi everyone, this is my first post on here. This specimen was labelled as a 'dinosaur jaw bone' and it was found in the Hell Creek Formation near Glendive, Montana. It is about 27 mm long. It does seem to me it belongs to a reptile of some sort but I haven't been able to find anything on the internet to identify it with any more specificity so I'd really appreciate your expertise in identifying it. Thanks everyone!
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Hi all. These are four theropod teeth from the Kem Kem beds that I am not sure about how to assign them. I was hoping you could have a look and let me know what you think. 1. A 3 cm long tooth, I think this one might be Carcharodontosaurid. 2. This one is 1.9 cm long. Distal serrations are slightly less dense than mesial ones. 3. A small one, 1.5 cm. Hard to measure, but mesial denticles appear to have a slightly higher density. 4. A 2 cm ugly one Thanks! Let me know if you need more info or pictures.
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Hi everyone! Online I found this tooth for sale, the seller presents it as Afrovenator abakensis tooth from Tiouraren Hill in Niger. In my limited experience I know that it is not always easy to identify which species or genus the found teeth belong to. In this case, from the photos, is it possible to understand if it is really an Afrovenator or maybe another species?
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Spinosaurid Rooted Tooth (Composite root?)
Meatasaurus93 posted a topic in Is It Real? How to Recognize Fossil Fabrications
I recently picked up this "rooted" spinosaurid tooth, and I wanted to get some feedback on it. I have provided both the seller's original pictures and pictures I took of the tooth. My best guess is that there are authentic root elements present, but it's a composite piece. There is a clear seam that runs along the center of the root, indicating that the bottom half of the root was attached to the rest of the tooth. That doesn't always mean that it's a composite, but it's really hard to tell whether the two halves are associated. My inclination is they are not, but I am also not an expert on rooted theropod teeth. The base of the root looks real, but from mid-root up to the base of the crown, it's really hard to tell what is filler and what is root. Normally, I wouldn't pick up a tooth that was this questionable, but the seller assured me I could return it if I wasn't happy with it. I look forward to reading your responses to this topic. Seller's pictures: My pictures: I circled the seam/break that I mentioned above:
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Did Tyrannosaurus ever colonize the Eastern U.S. during the Late Cretaceous
Joseph Fossil posted a topic in General Fossil Discussion
Tyrannosauridae Dinosaur diversity was unique in the Western and Eastern areas of the North American Continent during the Late Cretaceous era around 95-66 Million Years ago) as a result of a seaway the cut the continent in two (creating the continents of Laramidia (now Western North America) and Appalachia (now Eastern North America)). By the Maastrichtian stage of the Cretaceous 68 Million Years ago, the seaway decreased in size and a land bride formed between Laramidia and Appalachia. https://deeptimemaps.com/western-interior-seaway/ This is around the same time Tyrannosaurus rex emerged in Laramida and other Tyrannosauridae including the smaller Dryptosaurus lived in Appalachia. Map of the currently known Tyrannosaurus rex fossil discovery sites Maps of the currently known Maastricthian Tyrannosauridae fossil discovery sites in Eastern North America (not shown on the maps here are Late Cretaceous Tyrannosauridae fossil sites in South Carolina and North Carolina) https://paleobiodb.org/navigator/ What I'm wondering is even with this land bridge formed, what prevented Tyrannosaurus from colonizing the Eastern portion of North America during the Maastricthian Cretaceous? If it didn't prevent this, has there been any fossils found in the Eastern portion of North America that belong to the Tyrannosauridae genus Tyrannosaurus?
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Found a partial theropod claw and some other one, not sure if it’s even a claw but I figured I would check. dinosaur park fm
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Hey all, Curious to see if you have similar thoughts about this tooth. In terms of that possibility that it's not, in fact, from the Jurassic, I'm not sure I'm seeing the kind of denticle shape/hooking and marginal undulations of Majungasaurus. From Isalo IIIb in the Mahajanga basin of Madagascar CH: About 27.6mm CBL (carina-to-carina): 13.9mm CBW (mesial side to distal side): 7.5mm Mesial Serration Density: 2.2mmm Distal Serration Density: 1.9/mm Thank you!
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