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Showing results for tags 'teeth'.
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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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Hey guys, I've been off the radar for awhile .. work you know .. been working on Siggraph for those of you who are familiar with software development. Just wanted to start a new topic here .. This one is right at 3.00" - 7.62cm C. carcharias Bahia Inglesa Formation South of Caldera Provincia Copiapo III Regio de Atacama Chile
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Edit* Title changed to say shark skeletal elements ( previously said bones). This is an interesting topic that was brought up by my mentor and vertebrate paleontology professor during a lecture about a year ago. He mentioned that for some reason there seems to be a higher occurrence of shark bones and relative scarcity of teeth in the Astoria formation. That is the verbage he used. I am willing to bet this is some kind of collection bias where people just aren't recognizing the teeth as often as skeletal elements for some reason. I haven't been able to find information on Google scholar or really anywhere else that has provided information on depositional environments that would favor the preservation of shark skeletal elements over teeth, especially where there are plentiful well preserved invertebrate shells. Most of the fossils are locked in concretions or embedded in concrete-hard sandstone. There is intermittent softer sandstone and siltstone, but seems like most of the vertebrate and invertebrate fossils occur in the harder layers. This is something that has interested me as a research topic, but I haven't been able to make it out in awhile to do any collecting of my own. It would be interesting to set up a transect say from Newport to Lincoln City, take a group out and just collect fossils over a period of time across the transect to get an idea of fossil type, frequency, etc. And see if there really is something lending itself to a higher frequency of shark skeletal elements. On a side note it does seem like there is an usually high occurrence of young vertebrates such as pinnipeds and whales in the sections of the formation I've collected. It would be interesting to hear your thoughts on the matter as well as any additional insights you may be able to provide. What do you think?
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Hello everyone, another ID-question. We found this at the southern side of the Danish island of Møn, right next in the area of neolithic settlement. I have a hard time identifying this particular part of a tooth/fossilized set of teeth. As we are staying here for our holidays, I have no other scale with me. Any idea, of what we found here, would be greatly appreciated. Best wishes, Jens
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I found both of these in a creek near the peace river just wondering what they were? Find 1 I think is a camel tooth, or cow but im not entirely sure especially since its some what white near the top. Find two im hoping is a sloth tooth but i don’t have enough experience to be sure. Any help would be appreciated.
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Does anybody else go to mines in the summertime because of the river levels are too high
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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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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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What type of Teeth are these? They seem Crocodilian. Hope they're not restored lol.
The Legendary Hamzino posted a topic in Fossil ID
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Hi all, Thanks so much for the kind feedback on my Berthasaura reconstruction. Here is another example of my work: A 'juvenile' tyrannosaur skull based loosely on Jane (BMRP 2002.4.1) I'm aware of the debates regarding age and species however I have just approached this as younger individual. Thanks so much for checking out my sculpt. I'm printing a prototype as we speak, I'll post some updates on here once its assembled!
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Hello there! My friend and I have encountered a problem, which is that we cannot recognize the ID of this tooth. So I am requesting your help. Thank you!
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- dino
- kem kem beds
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From the album: Neutache Shoreline
My best preserved whipplei tooth. Interesting pattern is visible under microscope: #VM2 3/10/24© CC BY-NC
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From the album: Neutache Shoreline
Q4 2023 My largest ptychodus tooth to date, found in glacial deposits in E KS© CC BY-NC
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I'm pretty sure this was found by my friend on the North Sulphur River. It was labelled as such, along with some fish vertebrae I know are also found there. Most of the teeth are missing, broken off on their trip down the river. I'm wondering if anyone can give me more information on this piece. Thanks for the help!
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Hello all, Can someone please tell me what animal this tooth belonged to? 4 centimeters - around 1.6 inches Found on the beach: Zandmotor, The Netherlands. Thank you!
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Curious if anyone has any ideas as to what these might have came from. Found this piece in SE Colorado that has tons of shark teeth but these are way different than anything we have found so far.
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Below are two Pleistocene mammal teeth from "river gravels" in Florida. I have to further information on their age or locality, unfortunately. The left was merely identified as a "mammal tooth", and I strongly suspect it is from Trichechus manatus, but I have very little experience with mammal dentition and as such thought it would be best to check with someone with greater expertise in the field first. The right tooth was identified as a "peccary tooth", but given the fact that a number of tayassuids were present in Pleistocene Florida I wondered if the tooth could be identified to a genus, or better yet a species level. I will now take the liberty of "@ing in" a few people: @Harry Pristis and @Shellseeker Thanks in advance for any proposed ID's Othniel
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Machine learning identifies possible Deltadromeus tooth
BirdsAreDinosaurs posted a topic in Fossil News
By combining several analytical methods, including machine learning, to assess the diversity of a collection of theropod teeth from the Kem Kem beds, researchers found a tooth that could possibly be assigned to Deltadromeus agilis. https://www.tandfonline.com/doi/full/10.1080/02724634.2024.2311791 https://www.uu.nl/en/news/higher-carnivorous-dinosaur-biodiversity-of-famous-kem-kem-beds-morocco- 3 replies
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- abelisauridae
- carcharodontosauridae
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Is my Majungasaurus teeth real ?
MateuszN06 posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello two days ago I bought a Majungasaurus teeth. For me it is real teeth but I have to ask you about because I'm not sure (of course I want to be sure). Can you please tell is it real teeth ? Thank you for all of your answers on this topic- 5 replies
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- abelisaurid
- dinosaurus
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Hi! I found this bone this morning in Ramanessin Brook, Monmouth County, NJ and was hoping to get ID. I also have photo to show the teeth I found as well. Thanks a lot for your help.
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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 -
I found this tooth at El Capitán Beach on the coast by Santa Barbara in the mid 90’s. Any idea who lost their tooth? I’ve wondered what animal this tooth belonged to. Can anyone help me identify it?
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Found these two in south carolina near the Summerville and Charleston area, im fairly certain one is a tusk but if anyone could give more details on which type on elephant it could’ve been since im not familiar with the area. The second one is a horse tooth (I think) but I am a primarily florida hunter so I would like to know if its a three toed horse or another species since it looks different then the ones ive found down here.
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