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  1. I was in the area, so I made a very brief stop by the HMNS. I'll state up-front that this will be extremely dino-centric. What I saw was really great, they have a chronologically-organized display of animals from stromatolites to humans (I only made it to the Cretaceous). The lighting is very dramatic, so seeing it in person is much better than the dark photos portray (I did edit a few of them to enhance visibility). Lots of dynamic posing which is nice compared to other museums. Also, most specimens aren't behind glass, and you can get really close. I believe most of the skeleton
  2. Hi All, I'm new to this forum and thought I'd send over images of my theropod teeth plus one extremely impressive sauropod from Madagascar. Hope you like them! Paul
  3. Hello all, looking to get some opinions. 5-6 years ago I came across a ton of fragmented bones while scouting out a new collecting site. One of the first things that really caught my eye was this, lets call it a "claw". Like I said this was among a ton of shattered bone so it kind of stood out right away. I followed the bone fragments more up a very steep hill that turns into a cliff. This led me probably 50-75 feet from the initial sighting of bone to a place that was dangerously steep, but I could see more bone weathering out of the hill. It was in very bad shape
  4. ThePhysicist

    Tyrannosaur dental ontogeny?

    From the album: Hell Creek / Lance Formations

    It's interesting to compare differently-sized teeth of similar positions. These might represent ontogeny or other dental variation (due to multiple species, etc.).
  5. ThePhysicist

    Tyrannosaur dental ontogeny?

    From the album: Hell Creek / Lance Formations

    It's interesting to compare differently-sized teeth of similar positions. These might represent ontogeny or other dental variation (due to multiple species, etc.).
  6. ThePhysicist

    Juvenile T. rex tooth

    From the album: Hell Creek / Lance Formations

    A young T. rex tooth. The preservation of the enamel is fantastic, and I like the dark hues. The serrations are also in great shape. There is some minor feeding wear on the tip.
  7. ThePhysicist

    T. rex tooth chunk

    From the album: Hell Creek / Lance Formations

    For most collectors, it's more affordable to have a piece of a T. rex tooth if you just want it represented. This one is clearly T. rex: it's theropod with serrations (this one has the basalmost portion of the mesial carina), very thick, and clearly would've had a large circumference. Note also the large angle made by the curvature of the tooth at the carina (not Nanotyrannus which have narrow, blade-like teeth).
  8. ThePhysicist

    Juvenile Tyrannosaur tooth

    From the album: Hell Creek / Lance Formations

    Sold by the BHI as Nanotyrannus lancensis. However, given the uncertain status of Nanotyrannus' validity, I chose to label it as Tyrannosaurid for now. It is interesting to compare to my other small Tyrannosaur teeth of the same/similar position. The base is clearly more compressed than my baby rex tooth (which is also smaller).
  9. Hi all, Been trying to look for possible readings/ images of anterior dentary teeth of trex vs nano. Not sure if im finding it in the right place, but was wondering what a nano anterior dentary tooth would look like? As I dont think I have seen a nano anterior dentary tooth for sale, mostly rex for some reason. As i think those teeth look almost similar to a premax, though from what i remember, it would be highly unlikely to distinguish between a nano and rex premax unless the roots were still attached. Would you guys maybe know if there are any morpholoical difference
  10. ThePhysicist

    Juvenile Tyrannosaur tooth

    From the album: Hell Creek / Lance Formations

    Tyrannosauridae (Cf. Tyrannosaurus rex) Hell Creek Fm., Wibaux Co., MT, USA This minute tooth is indeed Tyrannosaur: the mc/dc serration densities are virtually identical, and the denticle shape is not like those of Dromaeosaurids. It also has a slight pathology near the tip.
  11. Is this a T Rex Egg Fossil? or just a really large 6 or so inch rock that looks like one? The guy selling this told me that before he removes anything from where he finds these, he gets local Paleontologists to check them out. Thoughts?
  12. ThePhysicist

    T. rex tooth

    Identification This is a classic T. rex tooth. It's clearly Tyrannosaurid by its robusticity, similar serration densities on each carina (mesial carina counted by the "roots" of the denticles as they are completely worn off), and chisel-shaped serrations. Those qualities with its locality and formation mean it must be the one and only. Notes The Crown Height Ratio (CHR) suggests a posterior position (it's short and stout). There's evidence of wear on the tip and mesial carina.
  13. ThePhysicist

    Tyrannosaur tooth

    Identification Tyrannosaur teeth characteristically have similar serration densities on each carina, with chisel-shaped denticles. Though small, this tooth matches those qualities, and doesn't resemble other smaller theropods like Dromaeosaurids. Identified as Cf. T. rex based on its similarity to another, larger tooth in my collection. Notes This tooth is from a juvenile individual. Serration densities illustrated in the above photos. There is a slight pathology (bend) near the tip.
  14. ThePhysicist

    A Physicist's Collection

    While my prime focus is essentially learning how to accurately describe Nature in the precise language of mathematics, I've always been intrigued by natural history - it's actually what started me on the path to physics. The sort of interrogation that paleontology practices provoked me to think and question even further, down to the fundamental science which makes it all work. Collecting fossils has brought a large amount of enjoyment to my life, and is often a welcome distraction from what can sometimes be straining work. The knowledge that I accumulate along the way is also part
  15. ThePhysicist

    Tyrannosaur

    From the album: Hell Creek / Lance Formations

    Tyrannosauridae (Nanotyrannus-morph) Hell Creek Fm., Powder River Co., MT, USA A classic Nanotyrannus Tyrannosaur tooth: compressed and blade-like. Exceptional preservation, with a minor wear facet near the tip on the lingual side (indicating it's from the left maxilla). I really like the color.
  16. ThePhysicist

    Juvenile T. rex

    From the album: Hell Creek / Lance Formations

    Tyrannosaurus rex Hell Creek Fm., Garfield Co., MT, USA This is from the right maxilla of a juvenile individual (note the lingual wear). Art by RJ Palmer
  17. ThePhysicist

    T. rex posterior

    From the album: Hell Creek / Lance Formations

    Tyrannosaurus rex Hell Creek Fm., Fallon Co., MT, USA The CHR suggests a posterior position for this somewhat beat-up T. rex tooth.
  18. ThePhysicist

    Tyrannosaur tooth

    Identification Tyrannosaur teeth have similarly-sized serrations on each edge, and the serrations are chisel-shaped. This is a classic "Nano-morph" tooth being compressed and blade-like (which is the primitive condition of Tyrannosaurs). Notes This tooth has excellent preservation, with serrations crossing the tip, and clear enamel. There is a minor wear facet near the tip on the lingual side, indicating this is from the left maxilla.
  19. carch_23

    T rex drawing

    Hey everyone, didnt know there was a thread for drawings lol how cool. Ive always enjoyed drawing, but found that they always come out better when done out of procrastination lol. Anywho, this rex was done today and thought Id share it. It was inspired by the JP rex, although the scales were just too time consuming to draw as I had to go back to studying, so just replaced some of the scales with shading haha. Thanks for looking!
  20. ThePhysicist

    Tyrannosaur teeth

    From the album: Hell Creek / Lance Formations

    Tyrannosauridae Hell Creek Formation Tyrannosaur teeth from various counties in Montana. Largest CH (Crown Height): 22 mm
  21. ThePhysicist

    Stan T. rex tooth replica (1)

    From the album: Dinosaurs

    A high-quality replica of Stan's 2nd maxillary tooth. About 11.5" in length. Displayed with a 3D-printed stand I designed.
  22. ThePhysicist

    Juvenile T. rex posterior

    From the album: Hell Creek / Lance Formations

    Tyrannosaurus rex Hell Creek Fm., Carter Co., MT, USA More information Art by RJ Palmer
  23. From the album: Dinosaurs

    Tyrannosaurus rex Hell Creek Fm., Wibaux Co., MT, USA Minor compression, common in maxillary teeth. It closely matches my larger juvenile T. rex.
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