PaleoNoel Posted July 10, 2018 Share Posted July 10, 2018 This is now my third post on my finds from last years trip to Wyoming. If you want to check out my previous posts click on these links - Theropod claw and Microsite Fossil ID. (* = two specimens of similar size) 1. Brachychampsa montana tooth (1 cm). 2. Thescelosaurus neglectus vertebra (2.5 cm). 3. Lonchidion selachos (?) Hybodont spine (3.5 cm). 2 Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 10, 2018 Author Share Posted July 10, 2018 4. Myledaphus pustulosus (guitarfish) (.7 cm wide).* 5. Champsosaurus sp. (.6 cm).* 6. Borealosuchus sternbergii (1 cm). 7. Brachychampsa montana "molar" (.6 cm wide). 2 Link to comment Share on other sites More sharing options...
caldigger Posted July 10, 2018 Share Posted July 10, 2018 Some nice pieces. Link to comment Share on other sites More sharing options...
Miocene_Mason Posted July 10, 2018 Share Posted July 10, 2018 Nice! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Peat Burns Posted July 10, 2018 Share Posted July 10, 2018 Good stuff! Link to comment Share on other sites More sharing options...
Al Dente Posted July 10, 2018 Share Posted July 10, 2018 2 hours ago, PaleoNoel said: Champsosaurus sp. (.6 cm).* 6. Borealosuchus sternbergii (1 cm). Nice finds. I've seen these teeth identified as Champsosaurus many times. I have my doubts about it because they look so much like fish teeth. Here is a picture of a Champsosaurus skeleton with more typical reptilian teeth. Unfortunately the teeth on the skeleton look like reproductions. Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 10, 2018 Author Share Posted July 10, 2018 Just now, Al Dente said: Nice finds. I've seen these teeth identified as Champsosaurus many times. I have my doubts about it because they look so much like fish teeth. Here is a picture of a Champsosaurus skeleton with more typical reptilian teeth. Unfortunately the teeth on the skeleton look like reproductions. Yeah it's hard to tell. When you search for the images of champsosaur teeth online fossils similar to mine show up. However I did see some PDF on Hell Creek fossil ID a while ago which I believe was from a reliable source. I'll try to find it. The point being is that the teeth said to be champsosaur there also resembled mine. Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 10, 2018 Author Share Posted July 10, 2018 Here it is, http://digfieldschool.org/wp-content/uploads/2013/08/Fossil-ID-Guide_06_28_12.pdf. And here is what they have pictured for champ teeth along with gar and true crocodilian. Link to comment Share on other sites More sharing options...
Dan 1000 Posted July 11, 2018 Share Posted July 11, 2018 Nicd finds mate! Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 11, 2018 Author Share Posted July 11, 2018 8 hours ago, caldigger said: Some nice pieces. 8 hours ago, WhodamanHD said: Nice! 6 hours ago, Peat Burns said: Good stuff! 55 minutes ago, DanKurek said: Nicd finds mate! Thanks for stopping by and I'm glad you're all enjoying my posts. There's more content on the way for this topic! Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 11, 2018 Author Share Posted July 11, 2018 Part 2. 8. Crocodile scute (4.2 cm). 9. Collection of small Borealosuchus sternbergii and Brachychampsa montana teeth (All under 1 cm). Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 11, 2018 Author Share Posted July 11, 2018 10. Triceratops prorsus/horridus tooth (2.5 cm). 11. Borealosuchus sternbergii tooth (1.5 cm). (the tip fell off and was glued back on). Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 11, 2018 Author Share Posted July 11, 2018 The website isn't letting me post the last 2 photos because each of them are larger than 3.95 mb even after a number of attempts at resizing the images. Link to comment Share on other sites More sharing options...
belemniten Posted July 13, 2018 Share Posted July 13, 2018 The teeth are all great Congrats! Many greetings from Germany ! Have a great time with many fossils Regards Sebastian Link to comment Share on other sites More sharing options...
Troodon Posted July 16, 2018 Share Posted July 16, 2018 On 7/10/2018 at 10:40 AM, PaleoNoel said: 5. Champsosaurus sp. (.6 cm).* These teeth are from the Amiid Fish Melvius thomasi very common in late cretaceous deposits Paper Melvius.pdf Champsosaurs teeth are very different and have strong ridges at the base and are conical and narrow. Here is a jaw in a publication I have describing the ostelogy of Champsosaurus. I also have an unprepped jaw with a few teeth see below My Jaw 4 Link to comment Share on other sites More sharing options...
Troodon Posted July 16, 2018 Share Posted July 16, 2018 On 7/11/2018 at 1:03 PM, PaleoNoel said: 10. Triceratops prorsus/horridus tooth (2.5 cm). This tooth is best described as Ceratopsian indet. There are other large bodied ceratopsians in the Hell Creek like Torosaurus and at least two unnamed Skulls that their owners believe are new species. 2 Link to comment Share on other sites More sharing options...
Troodon Posted July 16, 2018 Share Posted July 16, 2018 On 7/11/2018 at 1:03 PM, PaleoNoel said: 11. Borealosuchus sternbergii tooth (1.5 cm). (the tip fell off and was glued back on). A paper I read that examined the Croc and Alligator teeth in the Hell Creek indicated that you cannot distinguish anterior teeth of Borealosuchus and Brachychampsa 2 Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 26, 2018 Author Share Posted July 26, 2018 On 7/16/2018 at 5:07 AM, Troodon said: These teeth are from the Amiid Fish Melvius thomasi very common in late cretaceous deposits Paper Melvius.pdf Champsosaurs teeth are very different and have strong ridges at the base and are conical and narrow. Here is a jaw in a publication I have describing the ostelogy of Champsosaurus. I also have an unprepped jaw with a few teeth see below Thanks, after looking at those teeth it's clear that's what mine are. When looking online for pictures of champsosaur teeth, the ones being sold are regularly misidentified and appear to be Melvius as well. On my most recent trip (stay tuned for a report later on this week) I found a section of jaw which the guide identified as champsosaur and it had an unerupted tooth still embedded which resembled the ones in your pictures. Link to comment Share on other sites More sharing options...
PaleoNoel Posted July 26, 2018 Author Share Posted July 26, 2018 On 7/16/2018 at 5:14 AM, Troodon said: A paper I read that examined the Croc and Alligator teeth in the Hell Creek indicated that you cannot distinguish anterior teeth of Borealosuchus and Brachychampsa Yeah I didn't really think you could with the normal looking teeth, I generally refer to that variety as Borealosuchus even though they are likely indistinguishable. I always refer to the bulbous teeth (Fossil 1. on this post for example) as brachychampsa, along with the molar like teeth which I'm pretty sure are unique to brachychampsa or close relatives in the late cretaceous of Laramidia. 1 Link to comment Share on other sites More sharing options...
Troodon Posted July 26, 2018 Share Posted July 26, 2018 1 hour ago, PaleoNoel said: I always refer to the bulbous teeth (Fossil 1. on this post for example) as brachychampsa, along with the molar like teeth which I'm pretty sure are unique to brachychampsa and #7 Link to comment Share on other sites More sharing options...
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