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Found 11 results

  1. ThePhysicist

    Coelophysoid? Theropod

    From the album: Triassic

    From the "dawn" of the Dinosaurs, this small tooth represents an early theropod. Unlike the other serrated archosauriform teeth present in the formation, this tooth is ziphodont - thin and labio-lingually compressed - the archetypical tooth form that most theropods adhered to since their beginnings.
  2. ThePhysicist

    Coelophysoid? Theropod tooth

    From the album: Triassic

    From the "dawn" of the Dinosaurs, this small tooth represents an early theropod. Unlike the other serrated archosauriform teeth present in the formation, this tooth is ziphodont - thin and labio-lingually compresed - the archetypical tooth form that most theropods adhered to since their beginnings.
  3. I would like to share one of my favorite fossil to all of you, the footprint of Coelophysis. That's really rare for me. Because it can keep the both side so clear. Hope you all like it too. Thank you f t
  4. Neovenator

    Bull Canyon Coelophysis tooth.

    Hi there. I have this Triassic tooth from the Bull Canyon formation sold to me a good few years back as belonging to Coelophysis. I'd tentatively labeled it cf.Coelophysis (due to the locality) but now that I'm going through and re-evaluating everything I'm not sure it is an accurate description considering the curvature (though I'm not knowledgeable on ontogenic variation in this genus). I'm aware of a great thread posted by Troodon about this particular area but I'd like some input on the possibility it could belong to other Archosaurian taxa. My knowledge of this area is minimal so I'd appreciate any help. I counted about 26 denticles/5mm on both carinae.
  5. From the album: Robs Fossil Collection

    Coelophysis bauri or ichnospecies Grallator sp therapod footprints Age: Jurassic-Hettangian Location: Languedoc-Roussillon, France Plate measures: 34.5 cm x 25.5 cm
  6. Compy

    Possible Coelophysis tooth

    Hello, I m thinking on buying this tooth. According to the seller it is a Coelophysis sp. from the Chinle Formation. Apache County, Arizona. scale is in mm. Can anyone of you confirm the ID for I am not that familiar with Triassic material? Thank you very much in advance!
  7. Hadrosaur carcasses must have been great hiding places for fishes during the Cretaceous. A beautifully preserved primitive sturgeon, in the belly cavity of a Brachylophosaurus skeleton. Thanks Jack Horner Here’s the holotype skull of Gorgosaurus libratus. This specimen was collected by Charles Sternberg from Dino Prov Park, Alberta & described by Lawrence Lambe, Canada’s first vertebrate palaeontolgist. Thanks Dave Evans Thigh bone and shin bone of a subadult Triceratops. The thigh is much longer than the shin making for a relatively short stride, suggesting Triceratops was very slow. T. rex was definitely faster than a trike & probably didn’t need to run to catch one. Compliments of Dave Evans. Wonderful skull of the very early dinosaur Eoraptor from the PVSJ collection in San Juan. It’s from the early Late Triassic Ischigualasto Formation. NHM Dinolab The theropod Coelophysis baur the State Fossil of New Mexico. This mass death assemblage depicts multiple individuals who died at the same time. Thanks Guy Leahy. Here’s a nice big T. rex tooth from Saskatchewan. Not the prettiest but from a cool location. D. Evans Acrocanthosaurus mount completed by the Black Hills Institute. Heading to the Netherlands Something you dont see often jaws of Iguanacolossus fortis. Its a genus of iguanodontian ornithopod dinosaur that lived in North America during the Early Cretaceous period from Utah . Jim Kirkland Dinossur material from Austria wow.... you are looking at the nodosaur Struthiosaurus austriacus, from the Campanian of eastern Austria. Represented by multiple individuals of different growth stages, here is the braincase and two spikes. Tom Raven
  8. Hi! I recently aqcuired quite a lot of "microfossils" to kick off my Triassic collection, as I personally find it one of the most interesting time periods and while I am aware possibly not all of them are ID'd correctly I just wanted to get some nice fossils from this time period regardless of their ID's. All the fossils I acquired are from the Bull Canyon Formation, Dockum Group, San Miguel County, New Mexico, USA (Norian age) But I myself am not very knowledgeable yet in this material as I just started my collection but I am aware that some if not most of the ID's on these fossils given by the seller might be wrong as everything I read about the Bull Canyon formation says that the formation isn't that well discribed yet. I tried to make the photo's as good as I could, but it wasn't always easy given their extremely small size, so I hope the quality is good enough to work with. So I am kinda hoping is someone here on the forum would like to give it a try to see if he/she could confirm or disprove given ID's. Thank you in advance! The first set of 2 teeth were listed as the Phytosaur "Pseudopalatus" teeth which after doing a bit of research is considered a junior synonym for "Machaeroprosopus" The next collection of 3 teeth were listed as the Pseudosuchian "Revueltosaurus" The next tooth was listed as a "Theropod indet" tooth, and I know there are at least 2 species of theropod present at Bull Canyon, a Coelophysid called Gojirasaurus and a herrerasaurid called Chindesaurus. But I am not even sure whether this tooth is dinosaurian or not. The next set of teeth were listed as "Arganodus" lungfish teeth And the final tooth was listed as a "Sphenodont" (Rhynchocephalia indet.) tooth with affinities to Clevosaurus (which is found in Nova Scotia, Great Britain and China)
  9. How do these coelophysis teeth from bull canyon look?
  10. On to the Dinos. As I mentioned in an earlier post, I found some helpful information here about the Triassic fossil material from Bull Canyon before we started collecting the fossils so I knew going in that some of the dinosaur stuff may not be dinosaur at all or at least it may not be the dinosaur that they are sold as. The fossils are educational so we will present them as we purchased them while noting the uncertainty in documenting our collection. We want to do what we do with the sharks and start our programs as far back in the evolutionary line as we can get. Bull Canyon gives us possible dinosaur fossils that represent very early dinosaurs. The kids will likely not know much about early dinosaurs so these fossils are important in giving us that bridge. We bought three very small, and inexpensive, "Coelophysis" teeth. One of them looks that it could be a dinosaur tooth while the other two are probably not. I found a great piece by Troodon here that outlined what to look for in Bull Canyon teeth and using his profile of what to look for from a dinosaur tooth from Bull Canyon, I contacted the dealer I bought them from. He is going to find us one that fits that profile so I feel good that we will have one or two Triassic Theropod teeth. If they are actually Coelophysis or not is not a concern. That is the species we are presenting to the kids because they are such a well known early dinosaur. The kids can learn more about them on their own and they may get really interested in early dinosaurs if we can connect them to one. It gives a an opportunity to touch on basic theropod biology and get into evolution. We also got a small and inexpensive "Prosauropod" tooth. I did know before buying it that no diagnostic prosauropod fossils had been found in Bull Canyon. I can accept that this one is unlikely to be prosauropod but we are still going to present it as one because the kids will really enjoy hearing about the forerunners of the very well known Long necks. I do not have all the science info set for this part of the presentation. I am still learning about early dinosaurs. I do not think we will be able to add much to this part of the dinosaur program. There does not seem to be a lot of fossil material available so i think this will have to be enough. Pic 1 our tiny collection of tiny Triassic "dinosaur" teeth.
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