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Found 101 results

  1. Tooth - Tyrannosauridae indet.

    From the album Dinosaurs

    Species: Tyrannosauridae indet. Age: Cretaceous (Campanian), c. 75 million years ago Location: Two Medicine Formation, Montana, United States Pretty fragmentary tooth, but cool to have nonetheless. There are three species of tyrannosaurids present in the Two Medicine Formation (Daspletosaurus horneri, another currently unnamed species of Daspletosaurus, and Gorgosaurus libratus), so the tooth is not identifiable down to the species or genus level.
  2. Hi I’m looking into buying these three teeth and am wondering if they look good to anyone? Like restoration, repair, composite? And if it’s possible to identify the species? Thank you for any feedback! baby Diplodocid indet, Morrison Formation Theropod indet, Morrison Formation Tyrannosaur indet, Judith River Formation
  3. I recently learned that the Tyrannosaur femur I discovered in Dinosaur Provincial Park in 2018 (the same day I discovered my Hadrosaur Trackway, actually only 10 minutes apart from each other) is at the Royal Tyrrell Museum. I originally reported it in late 2018 and the Dinosaur Provincial Park team collected it and brought it to the field station, they then gave it to the Tyrrell and it’s been there since. But the thing is I never knew this until recently as I asked Caleb Brown about it when I was asking him about the Hadrosaur Trackway, he said it was collected by another group which turned out to be the Dinosaur Provincial Park Group. It used to be called DPP.2018.062 when the Dinosaur Provincial Park team collected it, but it is now known as TMP 2018.012.0088! I will give updates on this specimen like what I do with the Hadrosaur Trackway contribution topic. I am so excited to have two scientific dinosaur contributions to my name! And thanks to @musicnfossils and @Alex Eve without them I would of never known about this!
  4. Hello. I was wondering if anyone could help me identify this tyrannosaur tooth I recently added to my collection. It is said to be from the Judith River formation in North-Central Montana. Unfortunately, I don't have the county it came from. The tooth has the following measurements. Thanks for your help. CH = 40 mm CWB = 10 mm CBL = 16 mm MC = 18 denticles/5 mm DC = 14 denticles/5 mm DSDI = 1.29
  5. A pair of Two Medicine Formation teeth

    Hello, Been offered this pair of teeth from Two Medicine--they are labelled as Albertosaurus juvenile, but, unless I'm mistaken, Alberto isn't from there? Could they be juvie Daspleto/Gorgosaurus, or are they raptor teeth? I am guessing it would be difficult with these to narrow it down beyond Tyrannosaur or raptor. I've got a pic of the bases if that helps. They are very small --- black one is 8mm, white one is 1cm. Black one is I think a premax tooth. One pic shows 3 teeth--but it's the middle black and the white one on the right that I am interested in and requested extra photos of. Thanks for any help.
  6. Lance formation tooth question

    Hello, anyone able to help with this one? Going through my old "fossil" folder, I found this one I got 10 years ago bought as "Albertosaurus" from Lance Formation. Now, looking online I'm seeing Albertosaurus as not being from Lance. Indeed, only valid Tyrannosaur from there is looking like Rex Would this be better labelled as Undetermined Tyrannosaur, a T rex, or has Albertosaurus actually been found there? Apologies for pictures. The actual fossil is in storage box at my UK home, I'm in Taiwan and wont be going back there until COVID is over. So, hopefully these two older pics are enough to narrow it down. There are some serrations, which I believe seperates it from the juvenile teeth usually sold as Aublysodon?
  7. I was out yesterday doing a final hunt before the snow sets in here in Montana on the Judith River formation and found this claw along with this vertebra, no other bones around so possibly from the same animal. I have found theropod claws that are much smaller and this one is huge when compared. I searched for the tip but sadly couldn't find it. I assume because of the size it would be a tyrannosauroid but not certain. Can it be determined to be a toe claw or hand claw? Is the vertebra identifiable? @patrickhudson
  8. Tyrannosaur tooth ID

    I bought this tyrannosaur tooth a while back and it says it’s a albertosaurus, gorgosaurus, or daspletosaurus. Is there anyway to narrow it down any further? It says it was found in the Judith river formation of eastern Montana and it measures just over an inch. Any and all help is appreciated.
  9. Tyrannosaur teeth variations

    My son found a long skinny tyrannosaur tooth on South Saskatchewan River, West of Medicine Hat (oldman formation? Formost FM? DPP?) We've found all sorts of tyrannosaur teeth - short fat ones, short wide narrow ones, long fat ones, long narrow ones (Richadoestia), and all sorts of variations of curves or straight Species, age, and tooth position may all be factors. I'm just wondering if anyone has more info? This tooth is relatively narrow and thin for its length. I can post other examples of teeth found in the same area that are quite different from one another. I believe these may be examples of gorgosaurus or daspletosaurus as they were found in the DPP formation
  10. A response to Woodward et. al 2020's refutation of Nanotyrannus. Argues that specimens BMRP 2002.4.1 and BMRP 2006.4.4 fall outside the growth curve of Tyrannosaurus. https://advances.sciencemag.org/content/6/1/eaax6250/tab-e-letters
  11. Juvenile Nanotyrannus lancensis

    From the album Dinosaurs

    A tooth from a juvenile Nanotyrannus lancensis. Only missing the very tip.
  12. Two Medicine Tyrannosaurs

    I'm hoping someone can provide a little information about tyrannosaurs of the Two Medicine. Somewhere I thought I picked up that Daspletosaurus and Gorgosaurus were the only ones found in Montana (with Albertosaurus being absent in MT). But now I'm not finding that, so I'm wondering if I just imagined it. Additionally, I keep seeing conflicting information as to when Daspletosaurus and Gorgosaurus lived (I'm seeing 83 Ma but other places 76 Ma with several other times around there). Can anyone share an article or two that describes the current understanding of when these animals lived?
  13. Bite mark on a tyrannosaur tooth?

    Hey guys, I found this tooth that has what looks to be fossilized with a slice from a bite. I'm not sure if that is what it is. Has anyone else ever seen this? It's a first for me.
  14. A. sarcophagus or T. rex?

    Hello all, I collected this tooth last weekend along the Red Deer river in Alberta, and would like to know if it's possible to differentiate it as either A. sarcophagus or T. rex. I'm about 90% sure that it's from a deposit of the Horseshoe Canyon Formation, but the region also has exposures of the Scollard which introduces the possibility that this is from Tyrannosaurus. I had to leave the tooth with a friend until I can apply for a disposition certificate, so I can't get any additional photos, but I made a point to get pics of the major diagnostic features used to ID theropod teeth. Denticle spacing is 0.5mm, or 2 per millimetre: Thanks.
  15. Hi, I’ve been working on my project for a while now and I’ve decided to ask everyone to show there Alberta Tyrannosaur fossils! And if it’s teeth would you be able to put the Mesial and Distal serration count over 2mm. Thank you!
  16. Tyrannosaur tooth

    Hi I’m wondering what are your thoughts on this Tyrannosaur tooth? It’s 1.25 inches and is from the Dinosaur Park Formation of Alberta.
  17. Tyrannosaur tooth from new mexico

    Hello I recently got these two Tyrannosaur tooths form new mexico close to Farmington what could they be form? The more complete one is a inch long the other is half inch.
  18. Unidentified Theropod Tooth 3

    I was going to wait until tomorrow night to post the 3rd tooth but i got around to taking some pictures and measurements now so here is Unidentified Theropod Tooth #3. Judith River Formation Hill County Montana Crown height 15 mm ( broken base ) Serration count 17 per 5 mm distal 20 per 5 mm mesial I do not see a twist in the mesial carina This tooth is more compressed than the other two teeth the first being dromaeosaurus. Saurornitholestes perhaps?? @Troodon
  19. JRF Unidentified Theropod 2

    This is the second unidentified theropod tooth i just recently received. This tooth has a broken tip and its missing most of the mesial serrations. These are the measurements i observed followed by pictures for your own assessment. TOOTH 2 JUDITH RIVER FORMATION HILL COUNTY MT Crown height 12 mm ( missing tip ) Distal serrations are 3 per mm Mesial are 4 per mm There looks like there is a twist in the mesial carina Dromaeosaurus/Tyrannosaur?? @Troodon
  20. Unidentified Theropod

    Whats up everyone!? So i just received 3 new " Unidentified Theropod " teeth . I will be posting 1 a night for the next 3 nights. All of these teeth were found in the Judith River Formation in Hill County Montana. Heres Tooth #1 Judith River Formation Hill County MT CH 16.5 mm 14 serrations per 5 mm on the distal side of the tooth 17.5 serrations on the mesial side of the tooth Twist present on the mesial carina My thoughts - Dromaeosaurus Albertensis..... Tell me what you all think? @Troodon
  21. Unidentified theropod

    This next tooth im posting is another one from the Hell Creek Formation. It was found in the Tooth Draw Quarry in Butte County South Dakota. Its CH is 14.5 mm CL is 5.5 mm Its got a round base I wish i could give you a serration count but there arent any so this may be a tough one. Paronychodon maybe? Give it your best guess! @Troodon
  22. unidentified theropod

    Whats up all! I havnt posted in a while mainly due to just having everything all over the place since we've moved back into our house after a long time away due to renovation. I still have a ton of fossils in my collection and alot of unidentified teeth that im going to try and post on here more often.....ill be posting 2 tonight with the first being this tooth here : Its from the Hell Creek Formation, Tooth Draw Quarry , NE Butte County, South Dakota. Its CH is 13 mm The CBL is 8.5 mm Distal serration count is 3 / mm Mesial serration count is 4 / mm Base has an oval shape to it. Ill post a bunch of pics since some are better than others...anyway let me know what you all think ! @Troodon
  23. Hello everyone! I found this little tooth for sale and was wondering if it could be ID'd as a Nano or T-Rex. It is from the Hell Creek Fm, Garfield Co, MT and is 12mm x 8mm x 4mm. I thought it had the chance to be a T-Rex maxillary tooth since I don't see a pinch on the base and has a robust tip. Thanks for your input!
  24. Fossil ID Rex or Nano

    Hello everyone, On this edition of Rex or nano, we have this nice little mailbox score I got earlier this year. The seller and I are reasonably certain that it is a young adult rex. But I wanted to bring it to you folks to get your assessment. It matches the locality of Rex ( hell creek, from a microsite in Carter county) and based on my research from the forum and elsewhere it checks out as tyrannosaurid. (Ie: robustness and seemingly no pinch) Bonus question: I'm also curious on the placement of the tooth in the animals jaw. I have reason to believe it may be a right maxillary tooth.
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