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  1. Crowmagnum

    Found near Missoula MT

    Hi folks, I'm new to the forum, but I've been keeping my eyes on the ground for a while now, looking for interesting rocks and fossils. Recently I dug up this big rock while digging a drainage ditch on my place here in Western Montana. I'm located up against the Garnet range about 4 miles from the Blackfoot river, around 20 miles east of Missoula. I have no idea what this thing is, or what the nodules (?) are. The rock weighs ~70lbs by my estimation, and it very smooth except where the weird bumps and lumps stick out. It is not limestone, as I tested a small scraping with vinegar. Some areas have quartz features. One local rockhound said that maybe its a ball of ancient mudballs or perhaps worm castings but he wasn't sure. I haven't found any other rocks around that look like it... Any ideas? It's so cool looking! Feel free to ask any questions. Crow IMG_7534.heic IMG_7535.heic IMG_7536.heic IMG_7537.heic IMG_7539.heic IMG_7540.heic IMG_7542.heic
  2. Sauronitholestes07

    Hell Creek Tooth ID

    2.7mm long “raptor” tooth found in Garfield County, Montana. Isn’t curved and has serrations. Possibly enat tooth.
  3. Beninit

    What is this heart rock?

    Found with flute casts in Montana. Clam? Animal track?
  4. Sauronitholestes07

    “Sauronitholestes” Tooth from Hell Creek

    Hi everyone, seller claims this was found in the Hell Creek Formation, and that it is from a Sauronitholestes, the tooth measures up to approximately 3/16”.
  5. Beninit

    Please help me identify

    Hello My name is Ben I live in western Montana. I came across these imprints I believe are dinosaur . While researching them I Saw pictures of other skin prints that reminded me of some other fossils from a different area. So I went there and was lucky enough to find them under snow. What is strange is there are identical imprints to these still there in the rock , maybe i have the skin and the imprints remain. My first thought was stream bed but the bumps are only on the surface and this heart shaped fossil was with them. Any thoughts or information would be appreciated. IMG_3512.dng IMG_3513.dng
  6. Hello all. I was hoping for additional insights on what this may be as well. I know this is a vertebrate bone of Cretaceous age found near block mountain outside of Dillon Montana during a classical mapping trip. On one side of the specimen there is a prominent yet thin plate of bone with a robust ridge along one margin. On the opposite side of the specimen is a rectangular structure which may be a scute or possibly another type of mineralized structure. Any insights are appreciated.
  7. Crinoids

    Muddy creek plant with roots

    Was wondering if it would be possible to ID this plant, seems to have roots attached. Muddy creek formation Montana usa
  8. oilshale

    Polychaeta non det.

    From the album: Invertebrates

    Polychaeta non det. Early Carboniferous Serphukovian Heath Formation Bear Gulch Montana USA
  9. From the album: Invertebrates

    Typhloesus wellsi Melton & Scott, 1973 Early Carboniferous Serpukhovian Heath Formation Bear Gulch Montana USA In the beginning, it used to be believed that Typhloesus were conodont animals, a group of extinct agnathan vertebrates. The conodont teeth however were actually located in the gut contents of the Typhloesus, meaning that while it wasn't a conodont, they were a part of its diet. A new paper published revealed several potential mollusk-like features of the animal.
  10. Hello, I am trying to identify if this is a T. rex tooth. It's described as "natural juvenile Tyrannosaurus tooth". Location: Hell Creek Formation, Montana. Dimensions: Height: 4.3 cm Width: 3.8 cm I've read this awesome post by troodon, and I'm leaning towards T. rex ("fat" and rounded tip) - but looking forward to seeing your opinions as well. Thanks and have an awesome day ahead!
  11. oilshale

    Acanthodes lundi Zidek, 1980

    From the album: Vertebrates

    Acanthodes lundi Zidek, 1980 Lower Carboniferous Serpukhovian Heath Formation Bear Gulch Montana USA
  12. hemipristis

    Dermal scute? Epiphysis?

    Picked this one up at a rock shop when I was back in Philadelphia over Christmas. The lady working that day said this piece was bought by the owner with a bunch of dino bones (mostly vertebra) that the finder said was from Montana. No other info. The vertebra that were in the box with this were definitely dino, but in rough shape, so I didn't grab any. This is 13cm x 11cm x 8 mm thick. It is solidly lithified, and resembles agate. Based upon shape, my first thought was epiphysis, but do reptiles have those? Then I wondered if it were a whale epiphysis mixed in with the dino material inadvertently. But it is agate and very solid, which is unlike any cetacean epiphysis that I've seen. The patterning on the front and back also don't remind me of the cetacean epiphysises (epipysisi?) that I've seen. The texture does indeed remind me of dino bone. So then I wondered if it were a dermal scute. Thoughts?
  13. Hello, I saw this Struthiomimus foot on auction today, and wanted to ask If theres some restorations on it. The description says that its real and from one specimen. It looks very real to me, but i'm not sure, because of the irregular number of the toe bones. Maybe some of them are missing. But i'm not an expert, maybe someone knows it better. It was found in the two medicine formation, Montana. Its about 24cm or 8 Inch in length.
  14. Bahagma

    Unknown Items

    I found these laying on the ground when I was out horn hunting. Any ideas on what they are?
  15. patrickhudson

    Maybe a Pachy dome?

    Found this guy in the JRF of Montana. Looks like a veneer of a Pachy dome - especially with the one portion of the underside that isn’t eroded. Thoughts? it seems like an exact copy of a full dome we found a couple years back. or…. Astrogalus???? thanks!!
  16. Horse brain trace fossil probably from Montana
  17. LeytonJFReid

    Mammal jaw from Montana

    On college ruled paper, 1 line = 7.1 mm
  18. LeytonJFReid

    Equid jaw from Montana

    On college ruled paper, 1 line = 7.1 mm
  19. LeytonJFReid

    Equid jaw from Montana

    On college ruled paper, 1 line = 7.1 mm
  20. LeytonJFReid

    Mammal jaw from Montana

    Mammal jaw from Montana
  21. LeytonJFReid

    Equid jaw from Montana

    On college ruled paper, 1 line = 7.1 mm
  22. LeytonJFReid

    Mammal canine from Montana

    On college ruled paper, 1 line = 7.1 mm
  23. LeytonJFReid

    Mammal jaw from Montana

    On college ruled paper, 1 line = 7.1 mm
  24. hcpiv13

    Are These Leaves?

    I was shown this rock recently and am trying to get an ID. It was found near Weldon, Montana, USA in a wash. Likely from Paleocene age Fort Union Formation. I thought they were leaves initially, but at least one white section looks more like a vein when seen in cross section. That can be seen in the fourth photo, center left. Sample is approximately 14 x 12 x 4 cm. Outer brown layer of the rock has a very glassy texture. Any guidance would be appreciated.
  25. ThePhysicist

    A Sea in the Mountains

    It's 8:30am, below freezing, and cloudy - the perfect time to hike up a mountain to collect fossils! A rock-hounding buddy of mine recently stumbled upon a hash layer on one of the hikes we've done in Montana, and kindly offered to show me. Unfortunately the layer wasn't at the beginning of the trail, rather the end, so we had to climb 1,900 ft (6 statue of liberty's) and millions of years in geology to get to it - nature is rarely conducive to human ambition. After the short (2.5 mile) but steep hike, we made it to rock slides where the layer was being eroded and immediately began spotting plates of brachiopod hash - I can't believe I missed them before! Based on the geologic map of the area, I suspect these are Late Devonian-Early Mississippian in age. Wacking my geologic pick into the hill to carefully climb the steep slopes of the rockfalls, I began spotting some nice specimens. They were preserved in a pretty powder blue, and easy to spot against the dark matrix of the ancient sea floor. Unfortunately a lot of them appeared smashed in their tumbling down the hill. I loaded up my backpack with probably 40-50 lbs of rock, which in hindsight was not the best decision I've ever made. Here are some of the more interesting pieces (I don't know them any more precisely than "brachiopod", feel free to chime in brach fans): I was especially hoping to find a winged brach - I didn't find a nice one - but my friend generously gifted me one he found minutes after I mentioned hoping to find one. Hope you enjoyed! I'll be headed back to Texas where I have more trips in mind...
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