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Found 201 results

  1. Hello all, Before I post a ‘what is this’ query I’d like to see if I can ID seversl fimds on my own. I have a number of shells from the Mancos Shale near Moab. In terms of references I have Index Fossils of North America, and Invertebrate Fossils by Moore et al. The Index Fossils might have gotten me close but still, no cigar. Other sources I have are particular to ammonites. Can any of you suggest references I might find online that cover non-ammonite Mancos Shale fossils? Thanks, Tom
  2. Fossil found in marine limestone deposit Ut. About 9” long. Formation from Mississippian according to USFS.
  3. I am looking to take my kids to go take for trailer lights and Utah but I'm looking for free places to do so on public land. Does anybody have any locations where I might be able to do this as a day trip?
  4. Hi gang, I'm working fervently to prepare a post about the astounding time I had at Fossil Mountain in Utah during my fossil run back in July. (Will take me months to process and identify all these samples from four states.) I found a few partial trilobites at the upper layer of the Lehman formation, but I'm having difficulty identifying them. I freely admit I'm exceedingly weak at trilobites ID. these aren't the best pictures or even the best specimens, but I was there solo and the scree around the cliffs was pretty unstable so I erred in the side of caution. Anyway, Any suggestions much appreciated. I'll post better pictures tomorrow when I get my camera back off of my microscope at work.
  5. Here is a small trip only minutes away from downtown Salt Lake City. If you would like the exact location, PM me. I hadn’t been to this site in a couple years so it took @Earth Chemistry and I a couple hours to re-discover it so here’s a little history about the area. Ok first, the structural geology in this area is quite famous as it is a large pair of synclines. From https://geology.utah.gov/wp-content/uploads/synclines.gif They were made in the Sevier Orogeny about 120 Ma to 50 Ma ago.
  6. Road trip, I’m coming your way!

    Hey everyone, I just moved to Ft. Collins and the wife and I are heading out on a month long sight seeing/fossil hunting extravaganza. We leave on Sunday-here is our trip. Let me know if any of you guys can meet up and show me some fossil spots! I’ll bring plenty of Pleistocene peace river fossils as payment. Cheers -j
  7. Cowboy Pass, Utah Ammonites

    Picture Heavy! On my first day in Millard County, I started out at the U-DIG quarry. I got lots of trilobites, but nothing too spectacular. (I'll share them in a separate post as there is quite a bit of prep work to do!) Honestly, I got a bit bored at the quarry. Sure, I enjoy digging fossils, but the challenge just isn't there. So after four hours, I decided to drive through Marjum Pass to Cowboy Pass. This is the view exiting Marjum Pass. (That is a truly epic drive on its own, but I didn't stop at any of the fossil sites in there!) Almost there! For those that don't know, distance and time behaves a bit strangely when solo in the desert. Finding road signs is even stranger. If you do decide to do a Millard County run, you'd better be able to use a topo map and a compass because you cant trust GPS maps and mobile phones have no service out here. I found that even the road atlas was untrustworthy. It took me three months of research to pinpoint the exact locations of the exposed Thaynes Formation areas of the Pass. Doing the homework paid off as I was able to find the "easy" site almost immediately. I'm not really into giving out exact locations, but I will say "The Book" is correct and accurate and that this photo shows the landmark referred to in an old Millard County rockhound guide. I know I could have just asked folks where they were, but a big part of this hobby for me is the satisfaction of confirming my research skills. One can easily drive to the "easy" site, but the other two (actually three...) require a pretty rugged hike. However, as you are about to see, it is well worth it. I found my first in the overburden some hack left behind. In fact, at the easy site I didn't even need to use any tools as whoever was there last ignored dozens of nice specimens! I will also add, I hope it wasn't someone from here...as I cleaned up all your %#!$%^&* trash for you. Three full bags of garbage and you left a virtually brand new gad pry under the pile of beer cans. Thanks. I needed a gad pry later! Anyway, Here are some of the specimens I collected from the various sites. Most of them need lots of prep work. Here's a few as they were found: I'll post more pictures at a later date as there is a lot of prep work to do on many of the specimens! So, in short, Cowboy Pass is well worth the excursion. Be prepared to do some real work, and study up on the site before you go. Also, don't be a jerk and leave a mess like the one I found...that is how public lands get closed to the public.
  8. High Desert Fossil Run 2019

    Well, I'm headed up and ready to go. Been planning this trip for five months! obviously nothing to report yet, but I'm hoping a little pre-game Q and A with you guys might help me raise the safety factor. I'm traveling solo and I have never been to Millard county. No worries though, as desert camping and travel goes, this is an easy one for me. Three weeks in the Atacama on foot was far riskier! Death Valley, the Mojave, and Baja aren't too tough. Anyway: I've been scouting the works of Smith, Wilson, and about twenty other geologists and paleontologists to try my hand at places like Cowboy Pass, Camp Canyon, the red coral of the Foote range and Marjum pass in addition to the "tourist" sites like Fossil mountain in The Barn, reliable U-Dig, Fossil Butte and the fish quarries and my childhood dream, Dinosaur National Monument. ( I blame you all for everything but UDig and Dinosaur....first heard of those other spots on here or on members sites) Right now, I'm worried about road conditions in Millard county. Very hard to find recent reports and it looks like the weather was wet and floody. I plan to BLM camp for the entire trip of only for the quiet and some armchair astronomy. I don't use GPS or Internet maps, just topos, a recent road atlas, and my trusty Brunton transit. Any safety/weather/driving tips I should know before I get there?
  9. Need help with my petrified wood..

    Okay so now that I have found a group of individuals to help me identify.... I would love to know what find of petrified wood I have collected.. species and mineralization would be helpful. I have stuff that I can't find online. I'll start with the first two that I can't even tell if they are wood or not... All help is incredibly appreciated. Found these two river tumbled pieces south of Green River, Utah. Jurassic I think? Very different from everything else in the field.. Looks agatized? Thank you! Trenton
  10. Fossil Hash?

    I think I found tumbled fossil hash out near Green River, Utah (Jurassic?) and was wondering what exactly I did find? I appreciate all help! I have so many to identify... glad I found this forum.
  11. Just thought I'd share this post from our Facebook Group. Had a blast sharing some of my shark fossils with visitors this last Saturday. If you can contribute and give back to your community and society in general I promise that you'll find the experience rewarding and enriching. Pass on your knowledge to the next generation and get them exited about the sciences and paleontology.
  12. Jasperized Petrified Wood?

    I have a decent collection of petrified wood I've found here in Utah mainly Triassic Chinle, Jurassic Morrison, and Cretaceous Cedar Mountain Formations. This one has me a little stumped though and I am mainly looking to see if anyone has seen something similar to this. I'm about 80% sure it's jasperized petrified wood. Possibly an old rotting log. This was found near Park City, Utah in Keetley volcanic strata. The locality is not from the ash deposits that produced the nice Silver Creek Junction petrified wood (now extinct under commercial developments) but more likely from the violent lahar deposits that came later. No scraps of petrified wood were found. Just this. More info here. ANCIENT VOLCANOES OF THE CENTRAL WASATCH RANGE
  13. Some of my collection

    Hello gang, As promised this is where I will share specimens from my personal collection, my grandfather's collection, and the collection that was donated to the university I work for. The latter is interesting as it is literally boxes of rock and fossils, with no information and my university does not have a geology or paleontology department. I'll be updating it every so often. Enjoy! NOTE: Some of the donated items have old school "labels" on them. If you see initials or such that you recognize, please PM me, as I am doing my best to properly catalog them properly as part of my job!
  14. The Confusion Range and the House Range sit in Western Utah. The House Range is farther east closer to Delta, Utah than the Confusion Range. Parts of the Confusion Range are basically on the Utah-Nevada border. Both mountain ranges though have spectacular fossils. The House Range is basically all unfaulted Cambrian age layers and fossils pop up in several of the rock layers there. The Confusion Range, though, is broken up by many faults and everything from the Cambrian to the Triassic is present. Here's a short stratigraphy section marked with the layers we visited. We went to three different sites. A Cambrian site next to U-Dig fossils to sample the Cambrian explosion, and Ordivician site at Fossil Mountain (what better place to find fossils then a mountain named "fossil" mountain) to sample the Great Ordivician Biodiversification Event, and finally a time where 90% of all marine was wiped out, the Permian Period and the Gerster Limestone.
  15. Centipede Type Fossil?

    I found this in southern Utah. What is it? Thanks
  16. Can anybody narrow down the genus here?

    Hey guys. I’ve got this bivalve that needs a labeling. I collected it from the Jurassic age Twin Creeks Formation on the east side of Salt Lake City. It has some shell material left but most of it is an internal mold.
  17. Marine Fossil Id Needed

    I found these fossils about a week ago next to Settlement Canyon Reservoir (Tooele County, Ut). I found them about 6600 feet up in elevation at about 1/5 mile away from the reservoir. The images are of the same rock but taken at different angles and sides, all except the last picture.
  18. A family of amateur fossil hunters from Utah -- the Gunthers -- found this fascinating fossil in the Spence Gulch shale part of Utah in 1992, and shared it with Richard Robison at the University of Kansas. The mystery of what it was went unsolved for nearly 30 years, until a team at Ohio State uncovered the telltale circle that showed the creature had attached to a shelly surface via a basal disc. It's the earliest/one of the earliest known specimens of a mat-sticker making the evolutionary move to attaching to a harder surface--a leap that makes some of our modern-day echinoderms, including sea cucumbers, possible. They recently published their findings in the Bulletin of Geosciences but this discovery wouldn't have been possible if the Gunthers hadn't found the fossil in the first place. Just fascinating stuff. (story here: https://news.osu.edu/scientists-discover-evolutionary-link-to-modern-day-sea-echinoderms/),
  19. Sorry I haven’t been around the forum as much for a couple months now but I’m starting to get some more free time recently. Here’s a quick trip @Earth Chemistry and I did a little bit ago. Let’s start out with what stratigraphy we’re looking at here. I’ve been visiting multiple locations of what is locally known as the Gardison Limestone. Source: http://utahgeology.com/utah-stratigraphic-columns/?var=strat_27 It is from the early Mississippian or Early Carboniferous for our international members.
  20. 4/19/2019

    after arriving in Utah I was itching to get out and dig. So I found a spot on google and boy did it pay off. I anyone knows what layer it is or what these are please let me know. I can’t do close up of any of the fossils tomorrow if need be.
  21. I am headed to Kemmerer with my son to look for fossils. I am aware of the quarries in Kemmerer and want to know if there is anything that we should not miss on our road trip or around the area. We have 5 days to explore. Thank you!
  22. Mosasaur Teeth?

    I bought these at a Rock Shop in or near Moab Utah. Pretty sure the dude said they were from around there. What do you guys think?
  23. capital reef oysters II

    Hello all Here is a companion query for help. This item is flat, tapered to the top and slightly concave from the underside. The two pictures are a top view and a bottom view. It is about 2” thick. The scaliness, if there is such a word, looks like Exogyra, but does not have the curved narrow end described for Exogyra. I assumed this was a flat mollusk shell when I picked it up (E of Capital Reef, south of Rt 24, about 4 miles outside the park) but can’t find a match with the limited references I have. Help appreciated. Thanks. Tom
  24. Marjum Formation Dig

    Went out on a dig near Utah for Modocia typicalis with Gene Boardman one of the site managers at U-Dig. Gene is a really nice guy. He gifted the first trilobite of the day to me (I asked if he was sure and he said he had a few more). We split a lot of rock. A lot of work for a few beautiful bugs. Each image is captioned. Some are out of order. This is the great Gene Boardman. What I admire the most besides his genuine personality and big grin, is that he's a tenacious fossil digger. He kept reminding me to check every rock and to keep splitting it down as far as it would go. Here he has a thin slab of Marjum shale but he was able to find the first trilobite of the day with this fine split method. Really nice guy. The Marjum was not easy to split. It kept fracturing in multiple spots. The overburden was very brittle so we had to get down into the good, red layers. Here we are letting the rock "sweat" as Gene calls it. That means you set your chisels in the rock and let it naturally split and come back later to open up the bench. Lots of hard work. Gene helps run the U-Dig site and is known around the area for his enthusiasm for hunting trilobites and other fossils. The first Modocia typicalis was recovered 2.5 hrs. into the dig. It's small but complete and has some decent features. This is Gene's finest Modocia typicalus in his shop. He did an excellent preparation job. This big Modocia (over an inch) probably isn't a full specimen but has some great features. This smaller Modocia popped out of the same slab as the larger one. You can see it's impression on the left side. Another of Gene's Modocias. Gene gifted this M. typicalis after our days labors. Boy was I happy!
  25. Modocia typicalis

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