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Showing results for tags 'Arizona'.
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I am going to Scotsdale in a couple weeks any suggestions where to hunt?
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Kudos to the Museum of Northern Arizona in Flagstaff for having a photo database of fossils many of which are type specimens. I recognize some of the invertebrate fossils in the first 4 pages including those from the Kaibab, Redwall and Naco Formations. Color photos are a good compliment to those black and white and sometimes poorly reproduced photos in the type references. http://argus.musnaz.org/ArgusNET/Portal/Default.aspx?lang=en-US&p_AAEE=tab4&p_AAFV=Paleontology&d=d I wish more institutions would put their fossils, especially the type specimens, on the internet to use for free. See color pictures of Pennsylvanian Naco sponges from the Museum of Northern Arizona next to the black and white photos from the internet. Dilliard, Kelly & Rigby, J.K.. (2001). The new demosponges, Chaunactis olsoni and Haplistion nacoense, and associated sponges from the Pennsylvanian Naco Formation, Central Arizona. Brigham Young University Geology Studies. 46. 1-11. https://geology.byu.edu/0000017d-0fdd-d6bc-a9fd-fffdc35d0001/geo-stud-vol-46-dilliard-rigby-pdf Chaunactis olsoni: Haplistion nacoensis:
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This was found in dry wash, in Cocconino county Arizona. I was walking up dry wash looking for petrified wood. I thought this was just a nice black piece of petrified wood. It was in loose sand in the middle of a deep wash. They were 10-20 foot walls with a 20 foot wash base. When I got back to truck, I notice it was a lot smoother then the other pieces of petrified wood that I saw that day. The tooth had longitudinal grooves and lines that looks like worm trails. The yellow marks wouldn't wash out of the worm grooves. It also looks like three teeth connected together with fault cracks running thought it. I did try to get help identifying this tooth from Arizona museum of Natural History, who told me to next contact Arizona State University. I haven't goten any response. I have pictures of petrified wood found near this tooth. I can attach them later if that will help. If there is any other information needed let me know. Rocky Jeep
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I’ve made a lot of progress. I have one large main section and a smaller section that I still haven’t gotten connected up. The red circles are the manus (front) tracks that Dr Klein wanted me to be sure I got. I’m still digging out more tracks but the rocks have gotten smaller and more irregular. The individual pictures are what I’ve found in the last couple days. Dr Lucas is coming in September to take what he needs for his research
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As with my last post, these were gifts from an outgoing science teacher to me. Also as with my last post, I know very little about them. The school is in Arizona, so I might assume they are from here. My guess is petrified wood, of some sort. There are three samples, two pics of each. Thank you for all of your help.
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I’ve made a lot of progress on the reassembly. One more large satellite piece to join to the main body. Pictures don’t show the tracks very well but give you an idea of the scale. About 17’ long. Hope to get back to digging (and efficiently marking the slabs this time) in the next few days.
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Found this today. It will eventually hook into the new trackway. By far the biggest I’ve found. Dr Lucas was very excited, which for a paleontologist is remarkable lol. Attached an update on my reassembly.
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I acquired these two slices of something from a rockhound couple in our club. They could not remember what they are or where they came from, but they could be from Arizona or somewhere in the Southwest US as they spend their winters in Arizona and always come back with stuff from collecting and wheeling and dealing down there. The bigger piece especially looks like oncolites to me, but I have been fooled before. Does anyone recognize either of these, and more importantly where they might be from? (If I can figure out the location I'll have a better chance of tracking down the ID/age.) Both pieces came already polished on one side. Smaller one has scratches. I tested both with vinegar and the larger one fizzes. (It would not fizz on the polished surface, but on the rough edge it did). The smaller one did not noticeably fizz. I thought it looked fossily but obviously different from the bigger one, so it might have been from a different chunk from the same site or it may be completely unrelated. Maybe not even sedimentary. The little 'bits' in the smaller piece seem to have crystalline interiors but surrounded in the same type of reddish 'buildup' that the oncolites(?) in the larger piece have. I'm not really expecting a decisive answer (I've not been too lucky in getting mystery items confidently ID'd lately, from the forum or otherwise... I seem to have a knack for digging up strange things). But I thought I would survey the forum in the off-chance someone recognizes the material. A Google image search did not turn up a perfect match for either. The color balance in my photos may be a bit off (indoor lighting), but it's the best I could do for now. I could try direct sunlight tomorrow. Side-by-side comparison of both pieces: Weathered edges (smaller piece on top) - the greyish patches could be either paint or rock saw sludge, it won't come off easily:
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Dr Lucas and Dr Klein have been looking at my track photos. Looks like I have summer plans lol. The reassembling is coming along pretty good. I was smart and marked my pieces. Unfortunately the markings washed off. I used both paint pens and construction crayons but apparently there was still too much dirt despite my efforts to brush it off first. Next up, a metal scribe. I’m learning.
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I was hoping someone might be able to help identify this. I think it was found in Arizona. Thank you!
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Found a new set of tracks recently. Still excavating and reassembling. Tracks are very deep so must be soft mud. Not super distinct. Much larger than the usual tracks.
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A new formation of the Cambrian Tonto Group, Grand Canyon formally named for Frenchman Mountain
Oxytropidoceras posted a topic in Fossil News
Frenchman Mountain Dolostone: 500 million-year-old Grand Canyon rock layer finally gets a name. UNLV geologists name ancient rock layer after Las Vegas mountain that contains similar strata; research published in the journal Geosphere. New Study Links Geologic Features of Las Vegas’ Frenchman Mountain with Grand Canyon. Las Vegas Valley rock layer matches that of a famous interval of rocks at the Grand Canyon; findings reported in the Journal Geology. University of Nevada at Las Vegas, May 1 , 2020 The open access paper is: Rowland, S.M., Korolev, S., Hagadorn, J.W. and Ghosh, K., 2023. Frenchman Mountain Dolostone: A new formation of the Cambrian Tonto Group, Grand Canyon and Basin and Range, USA. Geosphere. Supplemental Material: Frenchman Mountain Dolostone: A new formation of the Cambrian Tonto Group, Grand Canyon and Basin and Range, USA, Geological Society of America Another paper is: Karlstrom, K.E., Mohr, M.T., Schmitz, M.D., Sundberg, F.A., Rowland, S.M., Blakey, R., Foster, J.R., Crossey, L.J., Dehler, C.M. and Hagadorn, J.W., 2020. Redefining the Tonto Group of Grand Canyon and recalibrating the Cambrian time scale. Geology, 48(5), pp.425-430. Related papers: Rowland, S.M., 2022, Geology of Frenchman Mountain and Rainbow Gardens, southern Nevada, USA, in Jiang, G.Q., and Dehler, C., eds., Field Excursions from Las Vegas, Nevada: Guides to the 2022 GSA Cordilleran and Rocky Mountain Joint Section Meeting: Geological Society of America Field Guide 63, p. 23– 43. Rowland, S.M., 1987, Paleozoic stratigraphy of Frenchman Mountain, Clark County, Nevada, in Hill, M.L., ed., Cordilleran Section of the Geological Society of America: Geological Society of America Centennial Field Guide 1, p. 53– 56. Hollingsworth, J.S., Sundberg, F.A. and Foster, J.R., 2011. Cambrian stratigraphy and paleontology of Northern Arizona and Southern Nevada. Museum of Northern Arizona Bulletin, 67, pp.1-321. PDFs of more trilobite papers. Videos Wild Speaker Series: The Amazing Geology of Frenchman Mountain and Rainbow Gardens. Friends Of Nevada Wilderness Frenchman Mountain Loop | Bordering Lake Mead National Nevada Trilobites, Frenchman Mountain Yours, Paul H. -
IDK, is this fossil or rock? It caught my eye differently and I just can't tell - Near Camp Verde, AZ
CoachPorter posted a topic in Fossil ID
I found this in the creek bed near Camp Verde in Arizona. Any information...rock? Fossil?
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Please help ID these Pennsylvanian Naco Formation trace fossils from central Arizona. Help Chris. @Arizona Chris Are the 1 cm wide chevron tracts in photo 3 Cruziana from trilobites? What are the 2.5 - 3 cm long teardrop shaped features in photos 1 and 2? What are the 2.5 - 3 cm long teardrop shaped features in photos 1 and 2? What are the elongated traces 3.5 to 4.5 cm long with length parallel marks in photo 4? From crustaceans?
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Arizona Fossil Collecting talk: Thursday, April 20th
DPS Ammonite posted a topic in General Fossil Discussion
Talk about Arizona fossils by the Mineralogical Society of Arizona. Thursday, April 20 in Phoenix metro area Anyone can attend meeting for free. Get there by 7PM. https://www.msaaz.org/event-5241726 Franciscan Renewal Center PIPER HALL Padre Serra Room 5802 E. Lincoln Drive Scottsdale, AZ 85253 ** Parking in Rear of Piper Hall ** "Adventures in Fossil Collecting: Arizona & Beyond” Presented by Dr. Jeff Langland Thursday, April 20, 2023 7.30 pm Arizona time. Our April 20th program will be presented by MSA Life Member Dr. Jeff Langland. Jeff's talk will focus on various sites and specimens from Arizona that have produced many museum quality fossils. As a field collector, Jeff is always looking for new sites to explore. Jeff will discuss fossil collecting sites and specimens he has collected not only from Arizona, but from various sites throughout the United States and even out of the country. As a long-time field collector, Jeff will show the value, fun, and excitement in personally finding your own specimens. -
Walking a dry creek bed north of Payson, Arizona, I found something interesting. Could this be a Pennsylvanian age sponge fossil? The views are side, bottom, side and top.
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I found this sti king out of the dirt in pheonix, Arizona it never stays shiny but I put pictures of wet and dry. Is this coprolite? Thank you
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Hey everyone, just joined the forum to ask for opinions on this item. I was out on my Native American Reservation in Parker, Arizona and walking along the beach of the Colorado River outside of our Casino. I stopped to find some cool stones in the water and came across this thing that I immediately thought resembled a shark tooth. I’m no expert, but things like this tend to pop up out in Arizona. I reached out to a department at the Los Angeles Natural History Museum, seeing as they are only a 20 minute drive from where I live, but I haven’t heard back from them yet. Any thoughts?
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I found this while hiking north of Payson, AZ, by the Tonto National Forest. Not sure if it is anything fossil related, looks like a foot with toes or something with teeth, or just a rock. The smaller rock was just used to prop it up for the picture. Thanks for your assistance!
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Went back to extract a 35 cm long piece of silicified root out of the Miocene Chalk Canyon Formation near Black Canyon City north of Phoenix. Had to work around the couple of heavy low elevation snow storms this year which have helped to greatly lessen a multi year drought. A geological hammer and a large star point chisel helped get the root out of the tuffaceous sandstone. I did not expect to get it out it one piece; I had to glue it together. After extracting the root, I looked in the surrounding basalt for agates and druzy amigdules. The prize was a 4 cm high manganese-rich crystallized dendrite growing in and amongst small quartz crystals in an amigdule. See other quartz druzies.
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Good Afternoon everyone. I am a rockhound and I've found a bunch of random fossils, but I don't know what they are! I found this chunk in Arizona.
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Found near extinct volcano with fossilized wood and probable bone
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I was referred to this page by fossil sites on Facebook. All I know about fossils, is, it's never an egg.. but quite a few folks thought this could be an egg. Found in western Arizona in a dry part of the desert, but near a series of washes where water flow occasional moves things around. 5cm x 3.5cm
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Age: Permian formation: hermit shale of the mogollon rim location: Sedona, AZ Hey all, Was bouncing back and forth from fossil hunting trips and fossil ID but since I’m quite inexperienced with this area and age group I decided to post here. Took a trip out to Phoenix with my family and drove to Sedona for the day. I did some reading on the geology of the mogollon rim and targeted the red shale beds of the hermit formation exposed all over Sedona and nearby Oak Creek (big thanks to @Arizona Chris for his wonderfully informative site on the geologic history of the mogollon rim and also to @DPS Ammonite for his destination suggestions for my trip). I searched a couple locations, both on the main road into Sedona and found some interesting things. In the first site: Possible footprint? Not at all sure. Really unfamiliar with the fauna of this age but it looks like it could’ve been a weathered footprint due to the coloration and the position on the smooth flat surface of the shale. Apologies for the lack of scaling and perspective, I did not bring many tools with me on this trip. Also saw lots of these pretty pockets of crystals in the shales. Further down the road, I spent more time searching and came up with this: Looks to me like a lot of woody debris drag marks and a really nice preservation of mud cracks. Looking forward to hearing others’ insight on this and if I missed anything on these rocks. Not the most prolific/incredible finds, but for an off-the-cuff fossil hunt put together in my hotel room, I’m pleased with the results. I’ve never found mud cracks before. Plus, the Sedona scenery is a real treat in itself. Didn’t take any of these pieces home since I’ll be flying back soon but I have some alternate photos if needed, apologies again for the lack of scaling. Thanks y’all!
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I went out to Arizona this fall. Still looking for mammoth, but did come back with triassic petrified wood. The Petrified Forest is outside of Holbrook. It really is a whole petrified forest that was brought down by massive floods-- whole trees no branches no leaves. After that i went looking for wood i could take home. Near the Petrified forest is a paid dig site DoBell ranch. It looks like something out of "American Picker " with the old trucks and and the old buildings. There were visitors there who went to town digging. I stayed with surface finds and and came home with more wood than I know what to do with-- in great colors.
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