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Showing results for tags 'dinosaur'.
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Howdy all, Seller says these are dinosaur eggshells from the Gobi Desert. Is that true? If they are authentic, the seller also says they are of oviraptor. I took the liberty to compare them to oviraptor eggshells and they didn't match up. I then compared them to some maiasaura shells which have a similar texture and my opinion now is that these are of some sort of ornithopod, possibly a hadrosaur like barsboldia or saurolophus.
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British Dinosaur footprints
Brevicolis posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, ive seen many of those british "dinosaur footprints" from Sussex and wondered if they're real casts that formed naturally or just funny shaped stones that someone interpreted a Dino-footprint in. In case you dont know what im talking about : The bottom one was identfied as ankylosaurid, all others werent identfied. If someone knows if theyre real or not, or if there are some scientific papers about them that you can link in the replies, Thanks !
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Dinosaur Dromaeosaur saurnitholestes Aguja Formation
JamieLynn posted a gallery image in Member Collections
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From the album: Texas Cretaceous Fossils: Dinosaur and Mammal
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Hello beautiful people, I would like you to help me label the following specimens, which come from Morocco. In theory, the 3 teeth in photo "A" are from juvenile spinosaurs. Those in photo "B" deltadromeus. And finally those in the photo "C" Tylosaurus. As always, very grateful for your responses!
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Does anyone recognize this as an egg? There are a couple shell fossils on it. I’ve had it for a while and always call it my dinosaur egg as a joke. Then I googled imaged a picture of it and thought it might be. Thanks.
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I only have these 2 photos. A friend has the fossil and doesn’t know where it came from. It measures about 11 inches in length. At this point that’s about all I know. Thank you all so much for your help to identify.
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So, no Kem Kem dromaeosaurids after all?
BirdsAreDinosaurs posted a topic in General Fossil Discussion
Hi all, I just recently had the time to thoroughly read through this recent paper, which describes, amongst other things, how machine learning was used (in combination with other techniques) to identify a possible Deltadromeus tooth. The authors also suggest the presence of a second noasaurid species in the Kem Kem beds, based on a small sub-adult partial vertebra. In the discussion, the authors discuss individual teeth found in the Kem Kem beds that were previously referred to Dromaesauridae by Amiot et al. (2004), Richter et al. (2013), and Ibrahim et al. (2020a). The authors believe all of these teeth do in fact not belong to Dromaeosauridae. They say some are most likely abelisaurid, and others noasaurid (those with strongly distally recurved crowns and those with a non-serrated mesial carina and/or a faint constriction between tooth and crown). All of the dental features used to refer Kem Kem teeth to Dromaeosauridae, are in fact also present in noasaurids and juvenile abelisaurids. To be honest, I never really believed the teeth described in these older papers belonged to Dromaeosauridae. Having said that, there are still some tooth types from the Kem Kem beds that have never been described in scientific literature, which are "dromaeosaurid-like". For example, the ones in Troodon's overview having a twisted mesial carina. However, when you look at lateral teeth of the noasaurid Masiakasaurus, some also have a twisted mesial carina. I think there is still a possibility that some of these small dromaeosaurid-like Kem Kem teeth are in fact dromaeosaurid, but it is quite likely that they all turn out to be noasaurid or abelisaurid. What do you think?- 1 reply
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This specimen was found near the town of Mammoth, Arizona.
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Hi there, a girlfriend of mine has recently brought a property in Peachester, Queensland. This property was previously owned by a geologist, as well as a archaeologist, (... something along those lines ) who had a couple truck loads of "rocks " dumped at the property, for whatever reason. They've since run out of money so they sold up and hit the road.... my friend and I are discovering some amazing things but we have no idea what most of them are - please help... this is just taste of what's there...
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I found this fossil toe bone in the Lance Formation of Wyoming. Is it a theropod toe bone or a turtle toe bone? It seems hollow.
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Hi all! Here is a reconstruction of Berthasaura leopoldinae I created! I've always been super excited by new discoveries.
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The idea that sensory pits were present in Theropod dinosaurs is not a new one, but for some reason I can't find any information on them and chat GPT says the presence of these structures in dinosaurs lacks fossil evidence. Below I present sensory pits in the jaw of an alligator and in the jaw of Albertosaurus. These pits are also known to be present in the jaws of some birds. In birds and crocodilians these sensory pits are believed to be used to detect vibrations in different substrates ( water for crocodilians and wood/soil for birds) in order to enhance prey detection and capture. My idea for sensory pits in Theropod dinosaurs (the ones that had them) is that they may have been used to detect prey in rotting logs or in shallow burrows. Why would large theropods have them? It is generally believed that young theropods were obviously alot smaller than the adults and probably ate things like insects or small vertebrates. I believe it is very likely that young Theropods used these sensory pits to help them locate these small animals that would be in substrates like wood (rotting stumps?) or soil. It's possible they were able to detect vibrations in the ground from approaching animals as a defense mechanism while they slept. It seems probable to me that these sensory pits may have been retained into adulthood by animals like Albertosaurus, etc...and lost by others. Of course these are believed to be present in piscivores like Baryonyx and Spinosaurus as well, which probably would have used them to enhance their fishing abilities. I intend to do some research into this and see if these sensory pits appear to be more common in juveniles ( where available) and how wide spread they were among Theropods in addition to the implications for feeding habits, etc in these animals as they aged. I would be interested in hearing some of your ideas about this.
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I found this tooth on private property in the Lance Formation, and I wanted to know what y’all think. Dr. Bakker told me ceratopsian (Lepto if I remember correctly). He said it was one of the teeth oriented toward the front of the mouth. I’m inclined to believe him, but has anyone else seen this before?
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Scapula / femur bone central texas near dino vally in glen rose id please
trap posted a topic in Fossil ID
I found this very hard and heavy petrified fossil? off a hill in a ravine by a natural spring on our property after clearing some land. It has kind of a porous exterior. Perhaps part of the head of the bone broke off partially over time? scapula? A rancher said it looks like a cow bone. It is so old and heavy I just don’t know if I buy that. Is it possible timing wise that it would be a fossilized cow or is it possibly prehistoric? Thank you for having a look. not sure of time period to look at.
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Hello! I found this fossilized bone a few days ago after the big tides in the Jurassic of the Boulonnais region (North of France). I can’t seem to place it… The cell structure looks dinosaur to me, not marine reptile. Would anyone be acquainted with this type of material and have any idea? Thank you very much! IMG_0855.mov
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Sorry that I don't have details of this specimen's provenance, but I'm trying to help an older friend remember what exactly this is a fossil of. They've had it for over 20 years, and believe they may have acquired it from online auction site in its early days. All I've been able to determine so far is that it is likely a dinosaur tibia. He's quite a fan of hadrosaurs, but I really have no idea if it's possibly from one. It's a fairly large specimen, about 26 in/66 cm long and 5 in/12.7 cm wide at the widest point: I know this is quite challenging without supporting information, but unfortunately any information related to this is missing, and was likely lost in a house fire that occurred years ago. Just hoping to get lucky and see if anyone has any sort of insight. Other photos attached (sorry that they seem to just be rendered full sized without a smaller preview, though that's more of a form limitation than my doing). Thanks..
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I need help identify anyone guidance is appreciated Video_2024-03-15 18_53_02_127.mp4 Video_2024-03-15 18_44_41_676.mp4
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Hi, my son found this on a beach. It's most likely fake but wanted to see what it is. Thanks.
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Need an ID approx. 16 - 18 cm (around 7") long bone from KemKem / upper Cretaceous, Cenomanian Looks like a vertebrae process, but I am not sure first Idea was an partly eroded tail vertebrae, but... what do you think?
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Hi, I've been offered this bone and would love an ID on it if anyone has any ideas. It was acquired from a show and is labeled to be from Badlands in SD. Any ideas on what it could be from would be appreciated. 10" long x 4" high x 3" wide approx
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Fossils labeled as from East Bluff, California but not so sure if that’s correct
Guest posted a topic in Fossil ID
These were sold to me stating they came from the East Bluff area in Newport Beach, California. But research into fossils from that area comes up with late Pliocene material that doesn’t look anything like these. The serrated tooth is especially confusing. Any ideas?
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Real Nannotyrannus tooth?
ruminate posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello everyone! Saw this nannotyrannus tooth for sale,is it really from nannotyrannus? Could it be something else? Any help would be apperciated IMG_8742.MOV dn02-2c.avif dn02-4c.avif dn02-3c.avif
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