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Found 10 results

  1. Closer inspection to my collection of bone pieces from trips to the Lance formation in Wyoming has resulted in me wondering if I had a few pieces of Ankylosaur osteoderm in my possession. I want to know what the folks on the forum think.
  2. Lance Fm. IDs

    Hey all, I found these over the summer in Wyoming's lance formation (Maastrichtian, upper cretaceous). I was hoping for some input on these specimens. First I believe is a small champsosaur vert, the front has a piece chipped off, but it measures 7 mm front to back and about 11 mm wide. Second I'm not so sure on, it's vaguely shaped like a coprolite which would be nice and would make it the second I found on this trip. It seems like it may be geologic. It measures 3.5 cm from top to bottom and has a diameter of about 1 cm.
  3. Sorry for the long wait for this post. I said I was going to do a write up for it in the days following my return, then once again in October and then after I had finished my trip report from my 2016 trip to Maryland's Potomac River back in December, but alas I never got to it. But now I'm finally sitting down to write about my experience from my week spent fossil hunting in Wyoming's badlands. I flew out of Boston in the morning of July 13th and landed in Denver by around mid-day. My parents got the rental car and we were on our way to eastern Wyoming. It was dinner time when we pulled into Laramie and we went to a Mexican Restaurant which had great food but gargantuan portions, we made our way back to the Comfort Inn we were staying at and soon got a grasp of how low quality it was. Sockets coming out of walls, old hairs on the bed, the scent of cigarette smoke permeating throughout the room, not quite as comfortable as advertised. The next day we left the motel in haste and went to the University of Wyoming's geologic museum, which had a number of great displays of fossils of which many were found within the state. Here are few shots of what we saw.
  4. T. rex Tooth Tip

    From the album Lance fm. Microsite Finds

    Tyrannosaurus rex Late Cretaceous (Maastrichtian~ 66 mya) Lance formation This was originally still attached to matrix but popped out after an attempt at revealing more of the tooth.
  5. Theropod Claw Confirmation

    And now my last fossil for the night, one of my favorite fossils in my collection ever is the theropod claw my dad found (I always give credit when he's the discoverer) in the Lance fm. of Wyoming the summer before last. It was identified by the guide as potentially being a Nanotyrannus hand claw but I wanted to confirm that with other members on TFF. It's about 2.5 cm in length.
  6. Bowfin Jaw Section?

    After looking through some of the material I brought back from this past summer's trip to Wyoming's Lance fm. I realized I had an odd little piece which I recognized as a section of jaw from something. After some digging I believe it's from some variety of amiid fish.
  7. Cretaceous Mammal Jaw?

    I found this the summer before last at a lance fm microsite. The interesting thing about this microsite is that many of the fossils come in a conglomerate matrix which contain pieces of bone, teeth and scales from basically everything that can be found in the area. The guide I was with believed this was a section of cretaceos mammal jaw, likely a larger mammal (for the time) like didelphodon. Unfortunately, none of the teeth were preserved with it so it would be hard to label it as anything beyond a general description. Also it is attached to a a larger piece of conglomerate with a small chunk of bone probably from a dinosaur. Here are both sides of the fossil.
  8. Thescelosaurus premax?

    Hi all! I feel like it's been too long since I last posted something of my own rather than commenting. Below is a picture of a tiny tooth which I initially believed to be crocodilian. I found it when surveying a promising anthill at a microsite in the Lance formation of eastern Wyoming. I was not disappointed! I ended up finding some very nice and very tiny fossils; a vertebra and a tooth both potentially myledaphus, a crocodile tooth (borealosuchus or other) and Richardoestesia tooth with almost invisible serrations! Nearby I found two tiny edmontosaurus teeth and a few partial croc scutes. I affectionately refer to this site by several names; 'The Whale Rocks" (as the harder gray capstones appear reminiscent of our cetacean friends), the sand box (due to the 'floor' of the surrounding area being covered in sand) or the 'Micro-Micro Site' as everything i've ever found there has been shrunken in size from your typical channel deposit. I want to know what you think of this piece which I now believe is one of the premaxillary teeth of the small herbivorous dinosaur Thescelosaurus and I other forum members agree with my analysis. (The tooth itself is only about 4 mm)
  9. Lance Formation Reptile Jaw

    Hey everyone! Feels like it's been a while since I've posted any of my finds. Life is busy as it can be at the moment so it's hard to find a time to post regularly. Here is a section of reptile jaw I found at a microsite in the Lance formation of eastern Wyoming. It was initially identified as belonging to a champsosaur, but I wanted to see what people thought on the forum. In the field: At home: (little un-erupted tooth)
  10. 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!
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