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Showing results for tags 'dromaeosaurid'.
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Identification A. temertyorum is characterized by the typical Dromaeosaurid traits (compressed, recurved, differing mc/dc serration densities), and longitudinal ridges/facets on the crown face. Notes This tooth was found this past Summer ('21), and in the same county as the holotype specimen.
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Hi TFF, I am a Dromaeosauridae enthusiast and have been collecting online for a little while now. I want to thank the members here for getting me educated on so many aspects of fossil teeth identification. I want to share my small collection in the hopes this is helpful for some of you in the future. Your critical input is highly appreciated, as always! #1 First up, one of my treasures, a robust Deinonychus antirrhopus tooth from the Cloverly Fm. A big thanks to @StevenJD for letting go of this one – much appreciated! Note the asymmetry in the placement of the carinae
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From the album: Dinosaurs
Acheroraptor temertyorum Hell Creek Fm., Garfield Co., MT, USA Note the diagnostic ridges. -
Fast. Intelligent. Deadly. The "Raptor" is perhaps one of the most famous dinosaur today thanks to Jurassic Park. To many people's surprise however, raptors are heavily feathered and nimbler than movies would have you believe. The Jurassic Park Velociraptor was merely the size of coyote in real life! In fact, their proper family name is 'Dromaeosaurid'. The largest species was Utahraptor, and it grew to the size of a grizzly bear! Dromaeosaurid fossils have been found all over the world. They first appeared during the Cretaceous, though isolated teeth have been found in the mid-Jurassic. Allow
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Identification: This is a typical Dromaeosaurid tooth, with the serrations being differently-sized on each carina; the denticles are much smaller on the mesial carina compared to the distal carina. There's also slight recurvature, which is common in Dromaeosaurs. There are no other features present that allow for identification beyond Family. Described Dromaeosaurs in the Hell Creek Formation include Acheroraptor temertyorum and Dakotaraptor steini. Because both of their known dentitions are incomplete, this tooth may belong to either, or another undescribed Dromaeosaur. Identificati
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Hi y'all, I picked up this gorgeous Dromaeosaurid tooth. It was listed as Acheroraptor and I bought it thinking it was one. However, upon receiving it and taking some measurements, I believe it may be a candidate for Dakotaraptor steini, as it virtually matches one in @Troodon's collection in every metric. It has a semi-oval base, with no ridges or facets commonly seen on Acheroraptor. The mesial carina is straight, and terminates almost 1/3 the CH from the base. Dromaeosauridae Hell Creek Fm., Carter Co., MT, USA CH: ~ 10.5 mm CBL: ~ 6 mm CBW: 3 mm Mesial de
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Hi everyone. Tonight I'd Iike to share my most recent find: an absolutely tiny theropod tooth I found late at night sorting through what remains of the Aguja fm. matrix I purchased last year. I knew it would pay to be thorough and I was delighted to see the glint of enamel in a triangular shape eventually appear. Additionally, it has just taken the crown (no pun intended) for smallest theropod tooth in my collection, at only 2 mm in length and just over 1 mm in width. I'd be interested in reading your opinions on it's identity, I'm thinking either dromaeosaur or troodontid but I'm not sure.
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The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska is presented in this paper. Paper https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0235078 Article http://www.sci-news.com/paleontology/alaskan-saurornitholestine-dinosaur-08618.html Inreresting tooth
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A new domaeosaurid, Dineobellator notohesperus, consisting of a partial skeleton from the Upper Cretaceous (Maastrichtian) of New Mexico, the first diagnostic dromaeosaurid to be recovered from the latest Cretaceous of the southern United States. The holotype includes elements of the skull, axial, and appendicular skeleton. From the Ojo Alamo Formation Dineobellator notohesperus Article https://phys.org/news/2020-03-feathered-dinosaur-surviving-raptors.html Smithsonian Mag. Article https://www.smithsonianmag.com/science-nature/dineobellator-dinosaur-new-
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Hi all, I have been staring at this tooth for quite a while now with question marks in my head. It was found in the Bissekty Formation, Kyzylkum desert, Uzbekistan. It's 27mm long (1.01 inch) and properly labeled as Theropod indet. However, the seller raises the possibility of it being a Dromaeosaurid. Serrations do look different in length and width, a count on screen gives me distal 13/5mm and mesial 16/5mm. What throws me off is the rather 'stout' crown and round cross section, more Tyrannosaurid in my view. However, I have no reference images and the only publication I found (Sues and
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Here are some photos of some of my dromaeosaurid fossils from the Aguja Formation of Brewster County, Texas.
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Today is my last day off before I go back to work and I was supposed to spend the day making fossil starter kits. I have a cold though and I do not want the kids to think that 12 million year old shark teeth gave them a cold lol I am pretty bored so I thought I would post about our Judith River dinosaur fossils and how we are going to get discuss this formation. I am really surprised how much I am enjoying learning about these dinosaurs and this will be a formation that we spend a good bit of time on. It must have had some very productive ecosystems and there is a great diversity h
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Listed on everybody's favorite auction site as a Dromaeosaur or Tyrannosaur tooth. 1/2" long theropod tooth. Hell Creek Frm, I believe it said South Dakota but I will double check that. It was very inexpensive so I went ahead and bought it. If nothing else, seems an excellent candidate for some analysis and it was a good way to test what I have learned without breaking the bank lol So lets see if I have gotten better at this. I believe it is Dromaeosaurid based on the difference in serration size and density. The seller posted good pictures so I could count the denticle
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Here is a really interesting bone. Despite being pretty small and a partial bone, this would be an excellent addition because you can get a great look inside of it. This is the type of bone that lends itself to some serious teaching I think. It is from Garfield County in Montana, Hell Creek Formation. 1 7/8" x 5/8" x 5/8". It is small and partial but it appears to be in excellent condition. It is listed as a raptor bone and my limited knowledge says that is a possibility. It sure looks like a theropod of some sort (bird, troodontid maybe I do not know). I would love to hear any and
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Hi all, I have a tricky tooth ID question. For now it is labeled as Theropod indet. and I guess this is as far as it gets, but I just want to check if someone else gets a Dromaeosaurid vibe =) It was found in the Lourinhã Formation. Crown height is 6mm. Denticles per 1mm are 9 mesial and 7 distal. Mesial denticles are also much shorter, and the mesial carina ends at about half way from the anterior of the tooth (maybe 2/3 considering the tip is missing). Distal denticles are slightly hooked towards the anterior. I went through quite some papers from similar aged formations in Portugal/Spa
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A totally AWESOME addition to our dinosaur collection
fossilsonwheels posted a topic in Member Collections
I recently added a Dromaeosaurid vertebra to our collection. I honestly did not bother with specs once I got it confirmed as Dromaeosaurid. I never asked size or what formation. I assumed it was from Judith River because it was sold as Dromaeosaurus. i knew it was going to be Dromaeosaurid indet so I was not worried about the specific ID. It is a raptor fossil so I wanted it. The vertebra arrived today and I got two very pleasant surprises. It is bigger than I thought. It is also not from Judith River or the species known from that formation. We got a Dromaeosaurid vertebra from th- 4 replies
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All of these items are from the same dealer and I am looking for some ID help. I researched these as much as I could on my own but I can only get some far with the knowledge I have. All of these come from the Judith River formation. For our education programs to really be solid, we need to expand beyond just teeth. We do have an Edmontosaurus jaw fragment and will soon have some Ceratopsian frill pieces plus some bones fragments from the Morrison Formation. I think it would be a good idea to augment the small dromaeosaurid teeth we have a bone or two so I am trying to understand this part of d
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Seeking some scientific information about Judith River dromaeosaurids
fossilsonwheels posted a topic in General Fossil Discussion
I was hoping somebody on TFF might be able to point me in the direction of any scientific papers, research or information that members here might have put together regarding dromaeosaurid theropods from the Judith River formation. This is not really about identifying any teeth, though I do have one from that formation. I am starting to do my research for the education program and am looking for scientific information. From what I can gather, there is a possible Saurornitholestes species and of course the dinosaur I have seen referred to as Julieraptor, which is a interesting story -
And now my last fossil for the night, one of my favorite fossils in my collection ever is the theropod claw my dad found (I always give credit when he's the discoverer) in the Lance fm. of Wyoming the summer before last. It was identified by the guide as potentially being a Nanotyrannus hand claw but I wanted to confirm that with other members on TFF. It's about 2.5 cm in length.
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Tooth of a velociraptorine raptor. Specifically the serrations of the tooth are typical of Saurornitholestes.
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Me and my 7 year old boy went looking for fossils many times. We found a claw tip and a claw mid section from two separate expeditions in two different areas within the river valley a kilometer apart. I believe we have a sickle claw tip from one hand of a dromaeosaur and a sickle claw mid section from the opposite hand. I would appreciate any additional id that could be made from these photos.
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- oldman formation
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Always like to see discoveries of dinosaur material from the east coast especially from North Carolina. Here, the first definitive occurrence of a dromaeosaurid from the Tar Heel Formation is reported on the basis of a tooth from a fairly large member of that group. The tooth described in the paper is intermediate in size between those of smaller dromaeosaurids like Saurornitholestes and gigantic forms like Dakotaraptor. https://www.paleowire.com/just-out-a-giant-dromaeosaurid-from-north-carolina-cretaceous-research/ Paywalled paper https://www.sciencedi
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Dakotaraptor Tooth For Sale
Troodon posted a topic in Is It Real? How to Recognize Fossil Fabrications
I noticed a Dakotaraptor tooth for sale and caution anyone interested in it to do a bit more homework before you buy. Dakotaraptor teeth are difficult to diagnose and can easily be confused with Nanotyrannus teeth. These teeth have been very difficult to find and are prized but be patient and be sure its the real deal. If interested my suggestion is to obtain more information on the tooth: A photo of the mesial carina. On the holotype the mesial carina typically ends 1/3 from the base A closeup pictures of the mesial and distal denticles, see below on what they should- 6 replies
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OK, I know it's gonna be an Abelisaurid, gotta check with you guys though! Pictures should say it all.
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A couple recent additions, Allosaurus claw/tooth and Dromaeosaurid claw
TheClawGuy posted a topic in Member Collections
It's been awhile since I posted so I thought I would share a few recent buys. These two claws are definitely some of my grail fossils. Enjoy!! Allosaurus hand claw, digit 2:- 17 replies
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