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  1. Hello Eveyrbody! I have a question about Tyrannosaurus rex teeth. A recent study has shown that T.Rex accounted for about 24% of the creatures in the hell creek formation. T.Rex were more common then edmontosaurus. Yet it is usually the most expensive fossil you can get from the hell creek/lance creek. So if Edmontosaurus were less common then T.rex then how come their fossils are way cheaper?
  2. Dino Dad 81

    Rex?

    Thanks for all the ID help lately. I've got another that's interesting to me, if you've got time. From the hell creek formation, Garfield Co, Montana CH: 12.1mm CBL: 4.6mm CBW: 3.0mm Mesial serration density: smooth, but curious to see if you perceive signs of worn denticles Distal serration density: about 4.33/mm Serration shape: tyrant or something else worn down?? Base cross-section: Oval--almost round Mesial carina: Hard to say if straight. Sort of seems straight but very offset from center.
  3. Dino Dad 81

    Theropod tooth Hell Creek

    Hello, I got this tooth that was labeled "raptor" from the hell creek fm. In the ad--and now in-person too--I think it's a T. Rex tooth. The trickiest part is getting anything on the mesial carina, there's quite a bit of wear / weak / lack of denticles. I'd love to get your thoughts on whether there's enough here to stamp it T. Rex. About 3/mm distal Attempts as mesial carina (strong twist)
  4. Found in the hell creek formation in a tiny gully. Any help with ID would be awesome. Also generally, how does one tell if a bone is old/ not just a recently dead animal that washed into the lower strata?
  5. Hello everyone! My name is Weston and while I studied Geology at Whitman College, I never continued by degree. I am now getting a nursing degree and was stationed in Jordan, Montana for rural clinical. A contact of mine let me dig on land and I found all these fossils. Here is a link to my google drive photos. Please help me ID everything and anything you can. I am wondering if the things that look like eggs are actually eggs, as well as what the perfect sphere is. I am also wondering what dinosaur the bones most likely belonged to. I am confident there are coprolites right? I am
  6. Hi everyone! Here's another little tooth that has me stumped. It has a pinch like a Nano, but the serration density is what I've come to expect from a raptor. At least I got some really nice shots of the serrations! CH: 8 mm CBL: 5.5 mm CBW: 2 mm mesial serration density: 6/mm distal serration density: 4.25/mm So what do you all think? Nano? Dakotaraptor? Tyrannosaur/Dromaeosaur indet.? Any insight is appreciated as always!
  7. jikohr

    Dakotaraptor?

    Hi everyone! I've been going over some small Hell Creek Theropod teeth and this one stood out to me. The serrations on the mesial side are pretty worn but using my microscope I was able to find a few enough remnants to get a measurement. The mesial serrations near the tip were pretty intact as well and I got a similar density there. CH 11 mm CBL 7 mm CBW 2.5 mm 7.3 denticle/mm mesial 7 denticle/mm mesial tip 4.19 denticle/mm distal mesial carina is completely straight, serrations do not extend to base. So what do you all think? Is it Dakotaraptor?
  8. Nanotyrannus35

    Triceratops Vertebra?

    I found this listed as a partial Triceratops caudal vertebra. It's only a partial though. Is it Triceratops, or could it be Edmontosaurus? Only location that the seller listed is Hell Creek Formation. Here are the pictures. Thanks for any help.
  9. Hi everyone! This came from Powder River County, Montana Hell Creek Formation. CH is 12 mm (I think, not sure where the root begins.) CBL is 5 mm CBW is 2 mm no serrations on the mesial side but there are some on the distal side but only in the middle and not near the tip. The density is 7/mm. I have a two others like this I'll try and post pics of later. one other has full serrations on the distal side (7/mm) and some very light serrations at the base of the mesial side (7/mm) and another that's fully serrated on both sides (7/mm on both sides) Other than
  10. Hi all! Lovely little something I acquired recently. Seller said Struthiomimus, just wanted to verify and see if anyone could provide insight on differentiating altus from sedens from potentially something else like Anzu, raptor, or Tyrannosaur. Measures 7.5 cm tall, 7 cm long, 3.8 and 4.2 cm wide centrums. Found in powder River County Montana. Was apparently found "crushed" and then repaired.
  11. Seanrad09

    Hell Creek Bone. Ankylosaur?

    Another one looking to ID. Judging by some of this bone’s characteristics, me and some friends are leaning ankylosaur. It looks similar to a skull piece I saw posted online as well. What are your thoughts?
  12. Dino Dad 81

    Dakotaraptor?

    Hi, I think I just got my best candidate for a Dakotaraptor tooth. I'd love to get your thoughts. It's: From the hell creek formation, South Dakota It's about 3/4" at its longest CH: 0.63" CW: 0.34" Mesial serration density: about 5-1/4 per MM Distal serration density: about 4-1/2 per MM Serration shape: looks "raptor" to me--or at least unusually long, thin, and rounded for a tyrannosaurid Base cross-section: Almond, no pinch whatsoever Mesial carina: straight as an arrow, serrations ending about 2/3 of the way do
  13. Yoda

    Crocodile Tooth ID

    I took a punt on these teeth. Not too expensive They we’re sold to me as: Borealosuchus sternbergii Hell Creek formation Upper Creataceous Any comments ? Thanks
  14. jikohr

    Is this a Leptoceratops claw?

    Hi everyone! After I posted some claws earlier, Troodon directed me to a very helpful link on identifying HC dino claws and while I was there I noticed something really interesting. See, those claws also came with a claw from an herbivorous dinosaur which I just chalked up to Thescelosaurus until I saw pics on the thread of Leptoceratops claws. Before I make that leap, I'd like a second opinion though. The piece is from the Hell Creek of Powder River County, Montana. I included pics from the thread of Thescelosaurus and Leptoceratops side by side with mine to show my reasoning. Any
  15. jikohr

    Are any of these raptor claws?

    Hi everyone! I acquired some dinosaur claw partials and am trying to learn to tell them apart. There are a few different morphologies so not all of them are Anzu (I think). Any insight would be greatly appreciated! The length measurement given is from the tip to the top of the base in a straight line Upper left, first pic set: 24 mm Upper right, second pic set: 21.5 mm Lower left, third pic set: 29 mm lower middle, fourth pic set: 25 mm (probably Anzu) Lower right, fifth pic set: 26 mm (also probably Anzu)
  16. JackS

    Hell Creek Microfossil ID

    Hey all. I was wondering if anyone knew what this could be. Size is 2.7 mm by 1.1 mm. I was thinking some sort of bird based on the shape and the gradient. No clue on the specie though. The specimen is from the Hell Creek Formation in Northern Wyoming. Thanks!
  17. Just stumbled on this article and thought I’d share with everyone. Very interesting information! https://phys.org/news/2022-01-fish-bones-lilies-pin-month.html?fbclid=IwAR0ihXwq6wOHkM2tikLEi-wbx43hYdu7foMoYMEOXVADUa-gbls8_hRciuU
  18. Hi everyone, About a week ago I posted pictures of a tiny carnivorous dinosaur tooth from Hell Creek thinking it was raptor and it wound up being Tyrannosaur. Since then I've been taking a closer look at my other tiny teeth and this one which I thought was Acheroraptor stuck out to me when I took a closer look at the serrations. It also occurred to me that there are serrations (although very worn that I for the life of me could not get a decent shot of but are present) on the anterior carina which you don't see on Acheroraptor teeth so now I'm leaning more towards a tiny Tyrannosau
  19. Hi everyone, Recently acquired some vertebrae from Hell Creek, I think the first one (1.4 x 1.1 x 1 inches) is a small Edmontosaurus caudal and the second (1,375 x 1 x .8 inches) is a Thescelosaurus Caudal. I'm still learning though so I wanted to confirm the id. Any feedback is appreciated as always!
  20. Hi everyone! I've got one more tiny hell creek tooth that I need help on. I didn't even think there was any mystery to it until I took a really close look at it. I acquired it as part of a set of Paronychodon teeth which are pretty distinctive looking and at first glance I though that's what this was since it's a small theropod tooth with the prominent lines going up the side (I forget what they're called) and with really nice serrations and wait..... Paronychodon doesn't have serrations. At least I don't think it does. I looked around to see if there have been any documented serra
  21. Hi everyone! I could really use a second opinion on this one. I'm thinking Dromaeosaur Acheroraptor at first but after looking at more pics I'm not sure if it might be Ricardoestesia or possibly even a juvenile Dakotaraptor. It's Hell Creek, about .35 inches. Serrations don't veer off to one side near the base so I really don't think it's a baby Nano. If pictures from another angle are needed to make an id let me know. Any feedback is greatly appreciated as always!
  22. Nanotyrannus35

    Bite Marks?

    I'd found this dinosaur bone on an online website and it looks like it might have bite marks. It's from the Hell Creek Formation of Harding Co. South Dakota. Here are the pictures.
  23. Tigereagle12345

    Potential T. Rex Bone?

    I found this bone on a fossil hunting trip in North Dakota, it was identified as a theropod, probably a T. Rex. Can anyone verify this claim? Thanks for any responces! (The ruler is mesuring in centimeters)
  24. Hi everyone! I've got another hell creek phalange I could use some help on. There's some damage on the front which exposes the inside showing it's hallow, so my first though was theropod, but I don't know for sure. dimensions are about 1.25 x .625 x .55 inches. Any feedback is greatly appreciated as always. Also Happy Thanksgiving!
  25. Hi everyone! I recently acquired some hell creek dino phalanges and could use some help identifying them further if possible. This one was advertised as theropod and I'm thinking it might be Tyrannosaur since it seems to robust to be any of the little guys like the raptors or whatever Richardoestesia and Paronychodon are but I wanted to make sure. measurements are about 1.5 x 1 x 1 inches. Any feedback is appreciated as always!
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