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Found 68 results

  1. Hello Fossil Forum! I recently purchased a metasequoia cone that is from the Huff, North Dakota area and the place I purchased it from has a tag claiming that it is 85 million years old. I believed it at first, but after some research I am unsure of its age. I have a Mesozoic collection going, so I’d like to know if it is late Cretaceous in age. Thank you!
  2. This weeks round of red flags Recent listings offers a number of very long Spinosaur teeth at very low prices. Most of these have fake roots and more. Avoid and post here before you buy. A member just got taken last week so please be careful. Large rooted teeth are expensive. A finger bone is offered described from a Spinosaurus. I think its a carpal but we have no scientific evidence that this morphology is from a Spinosaur. Its a very nice indeterminate Theropod carpal. This bone is listed coming from a Carcharodontosaurus. We have no idea who is the owner of this bone, no associated foot material has been published for any large Kem Kem Theropod. Best identified as indeterminate Theropod. Lots of fake Dinosaur eggs continue to be listed. Please post interest before you buy. A pair of Aublysodon Premaxillary teeth offered for sale. Reminder this is no longer considered a valid species, they are best identified as Tyrannosaurid indet. Most likely Nanotyrannus.
  3. Triceratops claw?

    Hi, Is this a claw from a Triceratops? it is from the Hell Creek Formation and is slightly over 2 inches in length.
  4. Saw these listed yesterday and the tooth was identified as a T-rex 1.55" long and Vertebra being from a Hadrosaur. Like to have confirmation on those ID's thanks
  5. Theropod skeletons from the Hell Creek Formation are very rare and avian ones are exceeding rare. Here the Black Hills Institute is putting together a replica of a partial Ornithomimosaur skeleton that was found with a complete undistorted skull. The skull and skeleton of this ornithomimosaur probably represent a new taxon according to the BHI. They state: that because this is the first skull from any member of the family Ornithomimosauridae from the Hell Creek Formation, it is impossible to compare it with other specimens. Clearly, however, the skeleton shows some features in the hand and pelvis that separate it from the described Struthiomimus sedens. Like my other BHI topics the photos and comments are from BHI President Pete Larsen. This replica is going to China. Started mounting an undescribed ornithomimosaur today for a Chinese museum. Using our copy in the background to speed up the process. Making progress on the cast of the undescribed ornithomimosaur from the Montana Hell Creek today. This is a very nice skeleton, despite the missing caudals and most of the dorsals More progress on the ornithomimid today. Finished mounting the other pelvic bones, dorsal and cervical vertebrae. Got a little bit done on the ornithomimosaur today. Finished mounting the chevrons and started on mounting the ribs. Mounted a bunch of bones on the ornithomimosaur today. One must be careful when you give a dinosaur a ribbing, because quite often they can be armed. Without complete feet it’s difficult for a dinosaur to move. I guess this ornithomimosaur will have to be toed We finished the ornithomimosaur mount today. Now we have to tear it down and make shipping brackets, readying it for the long painting process. This Hell Creek fossil is one of the great skeletons from the end of the age of dinosaurs. This is despite the fact that it is missing one leg and arm as well as its tail and most of the dorsal vertebrae Probably the most important part preserved is a complete and, for the most part, undistorted skull! One is not finished with mounting a dinosaur until shipping brackets are constructed to imobalize the parts inside a crate, and to be used should the skeleton be put into storage. We finished the mounting of the ornithomimosaur today
  6. David Evans and crew from the ROM have been collecting in the Hell Creek of Montana instead of their usual Judith River localities. They have not reported finding much but today's Twitter feed David posted these pictures and commented "We found dinosaur eggshell today! It’s a rarity for the Hell Creek Formation. Thanks to Wendy Sloboda for her expert help finding it.". Have never been lucky enough to find any and like David indicated they are pretty rare in the HC. @-Andy- @HamptonsDoc @CBchiefski hazard a guess what type they are?
  7. I saw these teeth for sale and the Id's look squirrely but I'm not an expert so look for a positive ID. All from Hell Creek Formation The seller identifies this as a Troodon tooth 1/4" looks more like a Pectinodon The others are being sold as Dromaeosaurus/Raptor All are 1/2" or less. They look like juvie Nanotyrannus
  8. Consolidated all my informational Topics to make it easier to reference. Will keep updating since some of the reference material is outdated. Have to thank @PFOOLEY for suggesting this consolidation and it makes it a lot easier for me to access these topics as well as our members to know what's out there. General Tips in Buying Theropod Teeth Dinosaur Anatomy 101 Stratigraphy of the Late Cretaceous in North America Triassic Identification of Dinosaur Teeth from the Triassic of New Mexico Jurassic: Morisson Formation Identifying Ceratosaurus Teeth Identification of Marshosaurus Teeth Tips in Buying a Sauropod Foot Claw Jurassic: Europe Dinosaurs of Costal Portugal Jurassic Theropods of Germany Cretaceous: North America Identification of Theropod Teeth in the Hell Creek and Lance Formations Identification of Troodontid Teeth Identification of Tyrannosaurid Teeth From North America Identification of Ankylosaurid Teeth Identification of Acheroraptor Teeth North American Tyrannosaurids what is Described Identification of Claws and Ungals from the Hell Creek and Lance Formations Identification of Pachycephalosaurid and Thescelosaurus Teeth Tooth Features in Tyrannosaurids Dakotaraptor Teeth and Claws Hell Creek Fm Identification of Bones /Claws from Alvarezsaurids from North America Hell Creek Faunal Representation Identification of Theropod Teeth from Judith River and Two Medicine Formations Cretaceous: Kem Kem of Morocco Kem Kem Theropod Teeth Kem Kem Theropod Tooth Morphology Identification of Sauropod Teeth from the Kem Kem Tips in Purchasing a Spinosaurid Hand Claw Identification of Claws from the Kem Kem Identification of Spinosaurid Jaws from the Kem Kem Cretaceous: South America Patagonia's Theropod Teeth Cretaceous: Uzbekistan: Identification of Theropod Teeth: Uzbekistan Sauropod Teeth: Uzbekistan Cretaceous: Europe Identifying Baryonyx Teeth
  9. I see a tooth being sold as Aublysodon and the seller also states it could be another juvenile tyrannosaurid My understanding is that this is not a valid species correct. Tooth is around 1/2 "
  10. I saw this beautiful toe bone for sale and wondered if it's identified correctly, seller calls it a Struthiomimus. From the Hell Creek Formation of Montana, 2 3/4" long
  11. An very rare Ornithomimus foot claw and digit is being offered for sale from the Hell Creek Formation of Montana. It's a beautiful claw unfortunately it belongs to a Thescelosaurus. The digit probably also belongs to a Thescelosaurus but it's a from a phalanx position 1 and therefore not next to the claw like shown in the photo. What you are spending your money here is for the claw not the digit. It's not very rare claw but nicely preserved and a great addition to any collection.
  12. I noticed a Dakotaraptor tooth for sale and caution anyone interested in it to do a bit more homework before you buy. Dakotaraptor teeth are difficult to diagnose and can easily be confused with Nanotyrannus teeth. These teeth have been very difficult to find and are prized but be patient and be sure its the real deal. If interested my suggestion is to obtain more information on the tooth: A photo of the mesial carina. On the holotype the mesial carina typically ends 1/3 from the base A closeup pictures of the mesial and distal denticles, see below on what they should look like. Not box shape like Nano. From the photos provided it might look right but need that closeup A serration count midline of both edges 5mm wide. Being a Dromaeosaurid the serrations are larger on the distal carina than mesial one. . Denticle shape from DePalma paper included in my topic shown below
  13. Spring 2018 Dino Trip

    Anytime you can go collecting fossils its a good time and I would like to share my spring trip to South Dakota and Montana. My South Dakota site is in the upper Hell Creek Formation and full of the hadrosaur Edmontosaurus annectens. I've been collecting this site for over 20 years and its still delivering. We are on the edge of a bluff and the fossil layer can be between 2 to 4 feet. Lots of good bones are to be found but we also have lots of punky or junk bones and about 70 % is collectible. The site is quite large and like I said last year we have no idea of its size but it contains scores of hadrosaurs, all disarticulated. No skulls are found but all the elements that make up a skull can be found. I like collecting in the section where smaller bones, unguals-toe-carpal-verts, are more typical while others like to go after larger limb bones. My trip to these areas takes me through the Chile Capital of the World, Hatch, New Mexico. Greeting me is Mr Rex a good start to my trip. I hear he is harmless... all show no action Some pictures of the South Dakota site The collecting zone is between the white lines a layer of 2 to 4 feet. The layer is shown below. The top is very crumbly and full of concretions. My Collecting gear consists of a tool box with everything I need to collect My glue field consolidant, orange bottle, without strength but is easy to prep and my structural glue, red. Activator to accelerate curing which rarely used. Tips for the glue Basic Tools I like to use No its not a beach day but temperatures approaching 90 degrees (32C) can get pretty hot so some protection is needed
  14. Newest Rex Tooth

    Good morning all, it has been a bit since I've posted here. I recently picked up a nice Tyrannosaurus rex tooth from the Hell Creek formation. This tooth has a lot of character to it. Even though it is not huge by any means, it has beautiful enamel and excellent serrations. I just wanted to get everyone's thoughts on it. Thank you!
  15. I post this as a reminder to Dinosaur tooth collectors that the Kem Kem Beds is not the only place that you need to be careful when you are looking to buy teeth but offerings from the States can be problematic. New collectors should to be especially mindful that sellers are not always accurate in what they are selling. Best to ask us B4 you buy. Here are a few examples: A beautiful Tyrannosaur tooth is being offered and sold as Albertosaurus from the Judith River Formation of Montana. Unfortunately this species is not described from this locality and currently only known from very late campanian, early maastrichtian deposits of the Horseshoe Canyon Formation in Alberta. You cannot distinguish between species of Tyrannosaurid teeth from campanian deposits. So this tooth is either a Daspletosaurus or Gorgosaurus tooth. Best identified as Tyrannosaurid indet. Aublysodon pre-max tooth is being offered from the Judith River of Montana. Unfortunately this species is no longer considered valid and teeth of this morphology are assigned to other Tyrannosaurids. In this formation, it's either a Daspletosaurus or Gorgosaurus tooth. Nice tooth best identified as Tyrannosaurid indet. An offering of a Nodosaurs tooth, Edmontonia rugosidens from the Hell Creek Formation. Unfortunately this species is not described from the Hell Creek Formation. Currently only Denversaurus schlessmani is the only described Nodosaur from the Hell Creek/ Lance Formations. Again a nice tooth. Be aware that other Nodosaurs may exist in these localities and this tooth is best described as Nodosaurid indet. but until those discoveries are made calling it Denversaurus is acceptable. The Ceratopsian Leptoceratops gracilis is being offered from the Hell Creek Formation. Again this species has not been described from this formation. The teeth are however identical to those L. gracilis and should be identified as: c.f. Leptoceratops gracilis. until we have a named species described. Daspletosaurus tooth being offered from the Judith River Formation. Similar comment as my first one. You cannot distinguish between species of Tyrannosaurid teeth from campanian deposits. Either a Daspletosaurus or Gorgosaurus tooth. Best identified as Tyrannosaurid indet.
  16. Not sure how many have see this Devian Art Representation of the Dinosaur fauna in the Hell Creek & Lance Formations. It's Paleop interpretation of what he believes exists. Download the image in the link to see it best. Not everything he shows has been officially described but the number and type look pretty good. It's pretty cool The image is the link
  17. A very brief article about the "Chicken from Hell" Anzu wyliei found in the Hell Creek Formation. Added some of my photos to get a better view of this cool Dinosaur. Carnegie Museum Article http://carnegiemuseumnaturalhistory.tumblr.com/post/165688152585/anzu-wyliei-perhaps-better-known-by-its-colorful/amp?__twitter_impression=true 5 feet high at the hips. Hand Claws reached 7 inches long
  18. Documented in this paper is baby hadrosaur that represents the first occurrence of an articulated nestling dinosaur skeleton from the latest Cretaceous (late Maastrichtian) of North America. It's from the Hell Creek of Montana, Garfield County. Edmontosaurus annectens Red... Scapula Purple.. Vert column Green..Pubis Blue.. Femur & Tibia Journal of Vertebrate Paleontology. ....Paywalled for non members.. A nestling-sized skeleton of Edmontosaurus(Ornithischia, Hadrosauridae) from the Hell Creek Formation of northeastern Montana, U.S.A., with an analysis of ontogenetic limb allometry Mateusz Wosik,Mark B. Goodwin &David C. Evans http://www.tandfonline.com/doi/abs/10.1080/02724634.2017.1398168?journalCode=ujvp20#.Wog2CXWObFg.twitter
  19. Troodontids certainly are one of my favorite dinosaur families. Intelligent and what a set of chompers to eat you with, all you can ask for in a cool dinosaur. Will start this with the Pectinodon teeth in my collection and will continue to add as I take photos. This species has some of the coolest teeth. Pectinodon bakkeri is the only named Troodontid in the Hell Creek and Lance Formations. This is a tooth taxon and its teeth are significantly much smaller than its big cousin Stenonychosaurus. Lance Formation Hell Creek Formation A couple of the teeth in matrix are partially rooted which is extremely rare since the teeth are so small Hell Creek Formation - Powder River County Hell Creek Formation
  20. BHI Oviraptorid Discovery

    The Black Hills Institute exciting new Oviraptorid discovery this year in the Hell Creek Formation is far far from completion but Pete Larsen has been keeping everyone appraised of its status. Its still mostly in matrix and the arduous task of preparation as just begun. A new species or a new Anzu wyliei skeleton, it looks different. Not as sexy as Tuffs Love T rex skull but scientifically import. Here is a good look at what it takes to extract one of thess raptors. The site a Hell Creek lake deposit Airbraide-airpen outside, slowly making progress to keep the dust down Screening clay filled "mud" collected at the Oviraptorid site and soaked in water for a week. Hoping for bone fragments. The mud is then scooped into a screen Sprayed with water to reduce the clay and mud Slowly the clay breaks down and washes away This is all that's left of 5 gallons of surface scrapings. Hopefully when finished screening the 20 gallons of mud, some bone will be found Cleaned up the tibia-fibula-astragalus-calcanium block with 5 gastralia Working on the Oviraptorid pelvic and neck block. Nice preservation, but some of the matrix is siderite concretion. Airscribe work. Hard tedious work to extract each piece. Lots of skull elements I've circled the lower jaw among skull elements
  21. A humorous, look at experiences on a dinosaur dig crew in the famous Hell Creek Formation of Eastern Montana. This short story is bound to bring a chuckle or two to those in the field of paleontology who endure it all in the name of science. Looks like only a Kindle version of . 99 cents by Richard Meyn https://www.amazon.com/Road-Hell-Creek-Volunteer-Dinosaur-ebook/dp/B078ZQ8J3C/ref=sr_1_1?s=books&ie=UTF8&qid=1516142474&sr=1-1&keywords=road+to+hell+creek
  22. Only two Ankylosaurs are reported from the Hell Creek and Lance Formation the Nodosaurid Denversaurus schlessmani and Ankylosaurid Ankylosaurus magniventris. I've identified my material to reflect these dinosaurs and if additional ones are discovered will change my identification. Material from these dinosaurs are extremely difficult to find with Teeth and Scutes being the most common. Bones are extremely rare. My Tail Club - also have a container full of isolated pieces that go to the missing portion. A few representative scutes from my collection. Most come from one area and are most likely associated. Have +30 from this site. One of my dinner plate scutes I call this my Bactrian Camel double humped scute. Different locality with a bulbous base.
  23. Hi all, I have a group of dinosaur teeth that needs identifying. They are either triceratops or hadrosaur teeth. They come from Hell Creek Formation of Powder County, Montana. All the teeth are roughly 1.5 cm tall 1) I am guessing hadrosaur 2) I am guessing triceratops 3) I am guessing triceratops 4, 5, 6) These 3 are extremely similar. I can't tell what they are.
  24. A member asked me to check out some auction offerings for Morrocan Dromaeosaurus teeth and I did and they of course they were improperly identified. Not being familiar with the identification of these teeth I tried to help him by checking around on different dealer websites and was appalled at what I found. What I refer to as key dinosaur suppliers, on the web, were selling Dromaeosaurus teeth from the Hell Creek Formation of Montana. What makes me more upset is that I told one of them that they do not exist. All the listings were beautiful teeth however they were not Dromaeosaurus but looked like Nanotyrannus. Reminder to all those that are interested in purchasing teeth or bones from the species Dromaeosaurus it does not exist in the Hell Creek Formation or Lance Formation or Morocco. That species can only be found in the States from the campanian deposits of the Judith River Formation and Two Medicine Formation of Montana. Canada also has a number of formations where it can be found also in Campanian deposits but you rarely see them offered for sale. The Hell Creek and Lance Formations have only two Dromaeosaurids described Acheroraptor and Dakotaraptor. So if your interested in purchasing a Dromaeosaurid tooth from those faunas it needs to be from one of those dinosaurs. Since domestic Dinosaur dealers don't seem to have their act together I suggest that you post any interest in these type of teeth here on the forum before you buy to be sure its properly identified.
  25. Bird and Pterosaur material is extremely rare in the Hell Creek and Lance Formations. Over the years I've purchased and found a few bones that I believe fit this category but not certain. Some may be mammal or reptilian. I'm not a bird guy so if you see something that does not seem right please let me know. Not a lot is published so I'm always open to learning. I showed this to a well respected theropod paleontologist and the potential ID's were his thoughts Troodontid?
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