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Found 58 results

  1. The Rio Puerco Valley was my introduction to fossils...it immediately caught my attention...lit a match...became a place I am always eager to revisit...search...learn about... ...and in roaming it, have learned about myself. Many of my adventures in the Puerco are posted here, here...here and here...and here. From here on out, my excursions will be shared here. May you find happiness in your hunting. -P.
  2. A couple of years ago, while on a romp through the Rio Puerco Valley, I found this ammonite. Since then, I have attempted to find a proper i.d. for this specimen through literature and documentation of New Mexico's Late Cretaceous ammonites. With very little luck, the closest resemblance were ammonites in the subfamily Puzosiinae, which are not documented from New Mexico. Today I decided to show the curator and the ammonite researcher at the New Mexico Museum of Natural History and Science. Good news...they did not know what it was! ...pretty exciting. Anyhoo, I have donated it to be studied but figured I would post it here as well. Unknown ammonite from the Late Cretaceous (Cenomanian) Paguate Mbr. of the Dakota Formation - New Mexico, USA. I doubt they'll be jumping on this right after lunch, but I will let ya'll know the results as I do. Happy hunting, -P.
  3. Chiropractor discovers BC's first dino skull. Looks like a Tyrannosaurid. Pretty good find while on holiday http://www.cbc.ca/amp/1.4158748
  4. I literally joined the forum 5 minutes ago, and I am still learning about the technicalities of paleontology. So if I use terms or vocabulary in the wrong context please excuse me. I have recently acquired a bone fragment that was found in the Hell Creek Formation near Jordan Montana,and it is from the Late cretaceous period. This is all I currently know about this fossil. I need help identifying the species that this bone fragment is from. Thanks for the help !
  5. A new paper is available that will shed new light on Late Cretaceous titanosauriform evolution in Laurasia: http://www.nature.com/articles/s41598-017-03602-2#Sec4 The titanosaur fauna from Late Cretaceous Europe has been well documented in the literature over the generations, but the discovery of a basal titanosauriform tooth in Santonian-age sediments in Hungary is important because it fills a gap in the fossil record of post-Cenomanian, pre-late Campanian European titanosauriforms and suggests that Late Cretaceous non-titanosaur somphospondylians may have been more widespread in Laurasia than previously thought because the discovery of sauropod remains from the Bissekty Formation of Uzbekistan shows that some latest Cretaceous European titanosaurs may have evolved from a central Asian ancestor.
  6. Dear Guys, I made the pictures of possible big discovery in Late Cretaceous erratics of Lithuania. There are some frog bones in flints (ilium, urostyle, tibiofibula, scapula), snake pieces (tibiofibula like of Tetrapodophis! and one thin scale), and toothed birs upper and lower jaw fossils. If you could confirm these finds, it will be the first further my article in scientific magazine and I wish it will be successful. There will be some posts, please review the pictures and tell what do you think. At first, I will show you frog remains. Best Regards Domas The second part- snake remains.
  7. Zuul crurivastator David Evans of the ROM contributed in describing a new ankylosaur from northern Montana's Judith River Fornatikn. One of the most complete Ankylosaurs ever found ROM's release http://www.rom.on.ca/en/collections-research/research-community-projects/zuul http://blogs.discovermagazine.com/deadthings/2017/05/09/meet-zuul-crurivastator-i-aint-fraid-of-no-ankylosaur/#.WRJrc5BlDxA http://www.sciencemag.org/news/2017/05/demon-faced-dinosaur-named-after-ghostbusters-baddie
  8. Sorry, it's blurry. Hopefully identifiable. It is 3/4" x 1/2". From a late Cretaceous site. Shark or Ray?
  9. Placement of terrestrial formations in the late cretaceous of North America as been constantly evolving and in October 2016 Denver Fowler a Paleontologist at the Museum of the Rockies published a very extensive paper on the subject and updated most units. This is very important when it comes to understanding dinosaur evolution and aids in describing species. This paper is in the process of going through peer review so is subject to change. Fowler DW. (2016) A new correlation of the Cretaceous formations of the Western Interior of the United States, I: Santonian-Maastrichtian formations and dinosaur biostratigraphy. PeerJ Preprints 4:e2554v1https://doi.org/10.7287/peerj.preprints.2554v1 The paper is pretty technical but all of the data is found in this excel file (supplemental information) which is a massive high-resolution stratigraphic chart for all of the formations from the late cretaceous of North America. It's nice to see it all laid out and a great reference source. https://doi.org/10.7287/peerj.preprints.2554v1/supp-1 To make it easy I've broken the chart apart so you can easily see most important dinosaur formations Texas The biggest change came with our understanding the Aguja and Javelina Formations of Texas part of the Tornillo group. The study indicated that the Aguja Formation deposits are only Campanian in age and that the Javelina Formation does not extend into the end of the Cretaceous. Very important when trying to describe species in those formations. Sellers have been comparing the Aguja to the Judith River in Montana well there is a correlation but its deposits are much younger that JR. Eastern Montana, N. Dakota, S. Dakota and Wyoming What I found interesting is that the Hell Creek is much older in Montana than in the adjacent states. The other interesting observation that can been easily be seen on these charts is that the how short a time frame the deposits of the Hell Creek/Lance formation are compared to the other major dinosaur formations. Central Montana Two Medicine and Judith River Formations are the two key formations in this locality Utah and New Mexico Utah depicted on the left and NM on the right Head North to Canada Alberta and Saskatchewan
  10. I have some Lance formation matrix I purchased on that auction site and I have been slowly breaking it down. This is one of my finds. I don't have a scale small enough to measure it against so . . . It is a little smaller than the head of a pin, flea speck. I did a Google image search on Lance Formation micro teeth but came up with nothing. The photos were taken with my Nikon point an shoot through the eyepiece of my microscope. These photos are the best I can do.
  11. Hey all, Had the honor of being taken fossil hunting with Pfooley recently. Found my first ammonites! I'd been wanting to find some for a long time. Was a great experience and I look forward to more trips soon. Checked out the famous "Windmill Site" first. The drive there was amazing in early morning. I busted open my first nodules... Poor quality picture of the Windmill Site finds. Nice variety in there. Far left is a large bivalve and there's a large gastropod on the far right. We moved on to find some other ammonites. My best find of the day was this large whole Spathites. Had a blast and can't stop thinking about the next time I'll find myself out there... Thanks again Mike!
  12. Is this a tooth of Richardoestesia isosceles? Scale marks on left side of tooth are in mm and on the right side are in 0.5 mm increments. Serration count ranges from about 6 to 8 per mm. What remains of the tooth is approximately 11 mm in length. Hell Creek Formation (Late Cretaceous: Maastrichtian), South Dakota.
  13. Any help on the identity and position of this small (scale bar = 1 mm) vertebra from the Hell Creek Formation (Late Cretaceous) of S. Dakota, would be greatly appreciated. It looks like much of the neural arch and processes are gone. The centrum is a bit more dorso-ventrally flattened as compared to the turtle vertebra I posted the other day, and the ventral side (?) of the centrum has sinuses unlike the turtle vert (perhaps due to wear / breakage?).
  14. Hi All, I am hoping someone might recognize this bone fragment. It is from the Hell Creek Formation (Late-Cretaceous) of South Dakota. It looks fishy to me but does not have the exterior texture of gar skull. The exterior is really "pocked", almost like small, conchoidal chips. If fish, maybe bowfin, paddlefish, or sturgeon skull fragment? Only other thought I had was maybe crocodilian or champsosaur skull fragment, but I am leaning fish. There might be enough structure on the interior surface for someone to recognize which bone. Top photo is the exterior surface, middle is interior surface, and bottom photo is close-up (under magnification) of the exterior surface. Scale is in cm / mm. Thanks for any help.
  15. Could someone help me with the identification and position of this vertebra. I was thinking it was procoelous and maybe crocodylomorph? Scale bar = 1mm.
  16. Sorry for the barrage of Hell Creek posts, I finally have time to go through some of my summer collections. I am having a hard time with this mammal tooth (Hell Creek Formation, Late-Cretaceous, South Dakota). The occlusal surface is heavily worn. I was thinking perhaps Cimolodon? or Mesodma? Any help / suggestions would be greatly appreciated. Scale bar = 1 mm
  17. Hi all, This is a leaf from the Hell Creek Formation (Late-Cretaceous: Maastrichtian) of South Dakota. My best guess is Marmarthia sp. (Lauraceae). Maybe M. trivialis? Can anyone familiar with the Hell Creek Flora confirm or perhaps suggest alternatives?
  18. I found this near Cottonmouth creek, 8 miles south of Austin. Some material throughout the creek looks to be lithified beach sediment. The extinct volcano called " Pilot Knob" is said to have erupted roughly 80 million years ago. The rock is about 2.5" inches long.
  19. Found a small tooth in matrix I had collected from a trip I did a few years ago to Niobrara County in Wyoming, the Lance Formation. Went through my Hell Creek/Lance Books, Papers and Guide and had no luck with anything. Tooth looks like a croc, shape and base but it has a spoon crown with a center ridge that is very different than most teeth I've seen and throws me for a loop. Hopefully someone has seen something similar. Thank you for any assistance. Lance Formation and its 7 mm long
  20. I was going through some matrix, from my last dinosaur dig trip, using a microscope to look for anything small. In that process I found something real small a micro. Its slightly larger than 1 mm. One of the smallest fossils I've ever found. Cephalic hook, dermal denticle or something else? Hell Creek Formation, South Dakota Any input would be appreciated. Sorry its the best picture I can take with my digital scope. Two images with a little different contrast. Thank you for looking.
  21. Hi All, New to the forum. Like many others, I can't believe I didn't find this forum before. Anyway, Oct 1st I took a trip with some family and friends to Big Brook. It had rained (gully washer style) the night before, which turned over the river nicely in some places. In other places, there was a new 9 inch plus layer of fine sand/silt. After screening for 4+ hours, I came away with very few shark teeth (oddity for the location), but did find what I believe to be my first bit of mammal fossil. I believe it is a fragment of a North American Mastodon tooth. Basically just one of the points. I can't imagine what else would have shared root canal, but would love any input. Enjoy!
  22. Student uncovers Alabama fossils likely from oldest ancestor of modern sea turtles, October 5, 2016 https://www.uab.edu/news/innovation/item/7649-uab-grad-student-uncovers-alabama-fossils-likely-from-oldest-ancestor-of-modern-sea-turtles http://phys.org/news/2016-10-student-uncovers-alabama-fossils-oldest.html https://www.sciencedaily.com/releases/2016/10/161003182513.htm Gentry, A. D., 2016, New material of the Late Cretaceous marine turtle Zangerl, 1953 and a phylogenetic reassessment of the 'toxochelyid'-grade taxa, Journal of Systematic Palaeontology DOI: 10.1080/14772019.2016.1217087 http://www.tandfonline.com/doi/abs/10.1080/14772019.2016.1217087 Yours, Paul H.
  23. Steven and his dad have been aggressively collecting a site that has produced high quality fish for me for the last 15 years. Their hard work is starting to pay off. Here's an Apsopelix sp. that I just finished prepping for them Before...
  24. My advice to any collector who is interested in dinosaurs is to become as much an expert as possible and do not rely solely on others for identification. One way to do so is to start a library of good reference books and pdf papers. This topic will focus on BOOKS There are a few must have books, if you're interested in TEETH and in my opinion this is the bible for North American ones. Dinosaur Systematics Approaches and Perspectives by Carpenter & Currie Addresses : 1)Chapter with detailed illustrations and ID guide of the teeth of Alberta's theropod's that are basically typical of what you see in other localities 2)Chapter on Hadrosaur teeth 3)Chapter on Ankylosaur teeth Retails for around $40 on Amazon The next must have book is the Dinosauria (second edition) by Weishampel, Dodson and Osmolska Great all around reference book. A chaper addresses Dinosaur distribution and you can see what has been discovered in any locality in the world by Formation, State or Province . Addresses all the different groups by Chapter with great illustrations. Not great to ID bones or Teeth. Retails for around $40 on Amazon My next recommendation for those who are starting out is Dinosaurs under the Big Sky by Jack Horner Book covers all of the cretaceous dinosaurs of Montana including the Cloverly, Two Medicine, Judith River and Hell Creek. Bones and teeth are shown again very basic. A bit out of date in the Hell Creek. Good for beginners Retails for around $15 on Amazon My next recommendation is Guide to Common Fossils from the Cretaceous of Alberta by Alberta Palaeontological Society Covers Mosasaur, Turtle, Croc, Fish and Dinosaurs Nice illustrations of bones and teeth but mostly bones. Available from APS info in pdf book.pdf If your into Allosaurus this is a must have book Allosaurus fragilis a revised Osteology by James Madsen Not much shown in teeth shown but very detailed illustrations of skulls, bones, vertebrae, hands and feet. Available at Utah Geological Survey bulletin 109 around $11
  25. Hello, can you help me ID these bivalve? They are from the Lance Fm in eastern WY (Late Cretaceous). I'm sorry the pictures are not pristine. They are old and I do not currently have the shells with me to take new ones. Also, does anyone have any idea whether I can determine if they are aragonitic or calcitic at this point? Thanks!