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Found 273 results

  1. Some new finds

    Started hitting another good load of rocks. Found the one huge chirotherium. Some interesting tracks I can’t identify too.
  2. Started new puzzle

    I’ve got 186 pieces that all pretty much fit together. I numbered them and took photos to send to a paleontologist who is going to try to photoshop them together. I got the first two together.
  3. This was found in North Phoenix sandy wash area after rainfall, near another fossil that looked like teeth, but the structure seems to have a star like pattern in the center of the rectangular seam.
  4. Found in sandy wash in North Phoenix desert after rainfall. Please identify, and if more pictures needed let me know.
  5. I believe this is a Bryozoan. It is about 14x16mm (about the size of a dime), and is on Martin formation Devonian dolomite from the Verde Valley in Arizona. Any opinions will be appreciated!
  6. Hi all. I will be in central Arizona from Christmas to beginning of February and am wondering if anyone would be interested is a bit of fossil hunting? Would be willing to hit anywhere within a day's drive of Phoenix. Trilobites are my favorite but not afraid to dig for anything Only place I've done in Arizona is near Payson. My biggest limitation is vehicular, only car I have there is a mustang so getting off road is by foot. I am going to look up the current Latham shale (California) access for 1 spot. Thanks
  7. Tabulate coral ID - Syringopora or Aulopora?

    The attached photo is a group of Thamnopora corals found in the Devonian Martin formation - dolomites of central Arizona's Verde Valley. There is also a group of tabulate corals that I suspect are Syringopora sp.. but some collection notes by others don't show this genus, but they do show Aulopora sp. as found in the same location. See the small worm-like cluster near the center of the image. Can any of you confirm which genus is in the image?
  8. Something new and different!

    Just found this today. It will hook up with the trackway I’m putting together once i get the rock hauled out. My first Eubrontes!
  9. I found several varieties of Devonian corals, including Pachyphyllum, Hexagonaria, Thamnopora and Alveolites near Superior, Arizona. Check out this Pachyphyllum woodmani that reminds me of the painting The Starry Night by Vincent Van Gogh. The painting also inspired a great song by Don McLean: https://m.youtube.com/watch?v=dipFMJckZOM Pachyphyllum lack common walls with their neighboring corallites. The septa grow in a curving manner towards each other meeting in a slightly irregular fashion.
  10. Rugose Corals? Mississippian Redwall Limestone

    These fossils are fairly common in the Mississippian redwall limestones of central Arizona. I believe they are rugose corals. Is this correct?
  11. This is a shot of a conglomeration of fossils in mudstone from the Verde Formation of central Arizona. This formation is a graben of jumbled types -- sandstone, limestone, mudstone, basalt, etc. These were in layers along a dry streambed. Any assistance with what they are would be appreciated. I'm assuming they are Pennsylvanian period, given the lack of crinoids. Locally, the redwall limestone is Mississippian, and contains abundant crinoids. The Martin limestones are Devonian, and have few fossils. I assume the pictured fossils are more recent than either of these. I'm especially curious about the items a few inches below my index finger that look like cross-sections of bone -- hollow with webbing inside. Thanks for any help you can offer!
  12. The Great Unconformity and Tales from Arizona Field Trips A Virtual Fireside Chat with Professor Steve Marshak University of Illinois, Champaign-Urbana, October 29, 2020 More University of Illinois, Champaign-Urbana talks, 2020 Yours, Paul H.
  13. This post is meant to document my more interesting fossils that I have donated to the Arizona Museum of Natural History in Mesa. It is partly for my records and partly for posterity. The Museum allowed me to look at their collections of Arizona fossils. I have and will be donating Arizona fossils that will add to and compliment their existing collections. The fossils will be available for display, educational use and for study. Some of the fossils are probably new species, new to Arizona fossils and better examples of existing pieces. If anyone has Arizona fossils that might be worthy of donation to the Museum I would love to look at them and direct you to the appropriate person at the museum that handles donations. I encourage all members to ask their local museums what fossils they can use for their collections and for educational use. Then, look at your collections to see what you can donate. Fossils legally collected on public lands by amateurs are one of the most important sources of fossils for local museums since the fossils cannot be sold or traded. Here is an example of one of my favorites that I recently donated. Chaunactis olsoni sponge. Silicified sponge 5 cm across collected in 2020. Found in lower part of the beta member of the Naco Formation. Sponge named after former Southwestern Paleontological Society member Tom Olson. Link.
  14. Looks like Coral but I Dunno

    Found along the border south of Phoenix. It looks like some kind of colony.
  15. Piecing it back together

    Have some nice trackways from the new spot.
  16. Pliohippus horse tooth

    This tooth for sale caught my eye and was hoping someone could help ID it. It was purportedly found in Miocene deposits of Arizona and I _think_ it's a late wear stage cheek tooth of Pliohippus sp. I do not have measurements at this time. Thanks for the help!
  17. Arizona Pennsylvanian Naco fossil

    Hello! Yesterday I did some collecting near Pine, AZ from a site known for shallow water, shelf marine fossils. This is the Pennsylvanian Naco formation. I found something with an odd shape encased in limestone, so I soaked it in diluted muriatic acid over night. I am stumped as to what this might be? Any help is appreciated! Thank you.
  18. Possible tracks in rock arizona?

    Good day all. I'm new here so let me introduce myself. I'm Robert, an amateur gold prospector, fisherman and lots more. I have found nothing too interesting during my gold panning adventures well not for an untrained gold fevered eye anyways but have found tons of modern aged bones that looks old at least a few hundred years old. Anyways now since thats out of the ways I was driving through Arizona when I reached the top of the hill at the sitegreaves national forest sign off of 260. I pulled over to let my semi truck cool down and chose to hike a bit. I sat down on a rock and found a small track. Its not as big as my hand nor is it extremely noticeable, maybe the size of one of those bbq/Chick-fil-A sauce dipping things tad bigger i guess. Anyways I took a picture what do you think? Just an coincidence?
  19. Love my new neighbor!

    My new neighbor (mile away but still the closest) rented an end loader and volunteered to move two of my biggest rocks! Both safe in my collection. And even better, went up the side of the wash about eight feet and found tracks. Could be the edge of the undisturbed fossil layer.
  20. Took some pictures of the chirotherium tracks. Have quite a few with a front and rear together.