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Found 168 results

  1. Unexpected bug

    So I've been collecting the rocks with obvious fossils on my property to make something, like a fossil garden or rock wall along the walkway. I plucked this out of the ground yesterday, rinsed it off and was about to toss it into the pile when I saw that trilobite. All the others I've found are just little white ones so I was very excited to see the condition of this one. If it wasn't for the obvious injury to the axial lobe I think I could've revived him.
  2. Crinoid like

    Hello and thanks for looking. I found these on my property in NW Arizona. It's Mississippian, Mooney falls member of the redwall limestone. I found the little pill like fossil a few days ago and then the column today. These are not like the tons of Crinoid fossils I've found nearby and I can't seem to find anything that matches online. I'm sure some of you will know immediately what it is. Please help if you have and ideas. Thanks
  3. Hello everyone! New here! I need help identifying this... I think it's a fossil but not sure. It was found on private land in Arizona. Any help would be appreciated! Thank you!
  4. Cylindrical fluted object

    Looks like a fossil branch perhaps. About three inches long. Ends appear to be porous. Pretty much looks like a small log. I
  5. Interesting find - unknown

    Found this today. Interesting striations on sides. Seems to have pores on ends.
  6. Shell?

    Found this interesting shell today. Seems to be sandstone. Thought it was a walnut shell at first. Can anyone ID?
  7. Naco Knockouts

    A few days ago I found a very productive fossil site in the Pennsylvanian Naco Formation in central Arizona. I went up to look at an interesting new track site in the Permian Coconino Sandstone NE of Payson that was found by a friend and is being studied by the prolific Spencer Lucas from New Mexico. Link The Naco Formation site that I just found, has the most diversity of sponges of any Naco site to date. It also has lots of large brachiopods. Photo 1 shows a 3.4881 × 10-18 light years (3.3 cm) long Composita subtilita brachiopod, the largest that I have seen. Photo 2: impression of exterior of a brachial brachiopod valve with spines now shown as holes (probably Exhinaria semipunctata). Shell about 5 cm wide. Photo 3: there were lots of Antiquatonia portlockiana brachiopods. This one is 5 cm across. Photo 4: impression of the exterior of a 3 cm brachiopod brachial valve. Note molds of spines below. Photo 5: this is the longest horn coral that I have ever seen from the Naco. It is 18 cm long. I am guessing that it is a Caninia sp. Photo 6: this is the largest “spiky ball sponge” that I ever have seen from the Naco. 1.7cm across. I only find them as singles in the rock or eroded out pieces that occur by the dozens in a small area. Literature hints that they might be sponges spicules. I am beginning to wonder if they are not an entire sponge or another creature altogether. I have yet to see a spicule that has crosspieces or ridges close to the center of the ball where the spikes attach. Photo 7: here is the pièce de résistance, a giant 10 cm Wewokella sponge that only a friend has found at another site and originally identified his as a coral. I said that his was a sponge. Wewokella have spicules with an average of 3 or 4 points unlike the Regispongia of similar appearance. Link Detail of above sponge. Note spicule shape. Photo 8: a 7 cm “dot sponge” of unknown affinity. They are somewhat common in the Naco. Photo 9: a small 1.5 cm disk shaped sponge with straight radiating spines. It might be a Belemnospongia. Photo 10: there are lots of flat chert masses that contain lots of straight sponges spines, probably from a single collapsed unidentified sponge.
  8. Sun was in abad position unfortunately but I’m curious if you think these are just random marks or something else? The top picture marks are about 8” total. The bottom two with the sets of four are about six inches square per set, on a huge boulder. As always, value your input!
  9. Fossil ID Resources

    Hi again everyone. Would you mind sharing with me your favorite fossil resources for ID, preparation, etc? Found a few this past weekend..... any easy ID help of the pics below would be awesome. i have a couple more that I might throw into a second topic. thanks in advance for your awesomeness. Sky
  10. New footprints from today

    Just found these today. Two different slabs about 4 feet long. Some closeups of one of them.
  11. Are these bone fossils?

    Found these in east central Arizona, close to where I have found fossil footprints. The brown rock surrounding the white material looks like fine sand adhering to it. The white material is smooth.
  12. Mud Ripples, maybe some roots

    The remains of a muddy area.
  13. Dinosaur footprints

    Found these in East Central Arizona. A deep wash has cut through a rock ledge containing lots of the footprints. Still working on trying to get some of the bigger rock slabs hauled out.
  14. Help with Fossil ID

    I’m hoping I could get ID help with a couple of fossils that were found in the Mogollon Rim area near Payson, AZ.
  15. Hi everyone, I will be in Phoenix for a conference next month and was wondering if anyone had any suggestions for quick collecting trips. I have a day to spare prior to the meeting. Thanks for any thoughts Chris
  16. Gallery of Schnebly Hill Formation Fossils

    Here is a collection of photos of fossils from the Permian Schnebly Hill Formation in Arizona. I believe that this is from the Promontory Butte Uranium Mine which is in the Schnebly Hill Formation just above the Naco Formation. Photo is from geological educator Stan Celestian.
  17. Rock or tooth?

    Hi Folks, I've been holding onto this for years as it always looked like a tooth to me. Any help would be appreciated. I found it while hiking at the North Rim of the Grand Canyon in the 90's. Probably a rock just wanted see what others thought.
  18. Fort Apache Limestone finds

    While dissolving an unknown 2 inch long sponge from the Permian Fort Apache Member of the Schnebly Hill Formation from northern Gila County in Arizona I found several silicified brachiopods with spines. Several Bellaclathrus spinosus brachiopods were present ranging from 0.75 to 1.5 inch across and had spines as long as 1 inch. Thankfully some sort of sudden but gentle event buried the sponge and brachiopods preserving them for me to uncover.
  19. 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!
  20. Here is a compilation of two trips to the Payson, Arizona area last month. Early in May, I led a Saturday and Sunday trip for the Southwest Paleontology Society. Since everyone left by lunchtime on Sunday, I headed over to a local cave, Redman Cave, carved in the Devonian Martin Formation to look for nearby fossils. Although I have been in the cave twice, why go where you cannot collect fossils and you might not have enough oxygen to breath. The cave is connected to the disappearance of one of the FBI’s ten most wanted fugitives, Robert Fisher who murdered his family in Scottsdale and left his dog and car nearby. After searching several caves, no trace of him was found. Photo 1: Redman Cave. Photo 2: J. Redman’s grave next to cave. Photo 3: see Fisher’s most wanted poster. link. Photo 4: after visiting the cave, I looked for outcrops of the early Permian Fort Apache Member of the Schnebly Hill Formation. I found this 4.75 inch long silicified sponge branch that was fully exposed after using four gallons of pool acid. Photo 5: later in the month, I went back to the Payson area to look for more treasures. From the Fort Apache Member, AKA the Fort Apache Limestone. Dissolving the matrix with acid, I found this silicified Euphemitopsis gastropod that is about 1.5 cm at its widest. Winters possibly found a part of this shell that he identified as a Euphemites. Euphemites have spiral lira, ridges, over the older part of the shell and the younger part of the shell is usually smooth near the curved notch in the aperture, the selinizone. Euphemitopsis have bumps in the newer area near the selenizone. See this reference for the best information about the fossils from the Fort Apache Member. We are finding new species, including sponges, to add to the list: Winters, S.S. (1963). Supai Formation (Permian) of Eastern Arizona. Geological Society of America Memoir, 89, 99 p. link. Photo 6: same Euphemitopsis sp. as above. Photo 7: same Euphemitopsis sp. as above. Photo 8: Euphemitopsis sp. and high spired Apachella sp. Photo about 1.5 cm tall. Photo 9: probable sponge, note spicules in lower part of photo. Sponge about 5 mm across. Photo 10: an unidentified sponge that looks like a Maeandrostia kansasensis sp. found in the Pennsylvanian in central and eastern US and Actinocoelia maeandrina found in the Permian Kaibab Limestone a few hundred feet stratigraphically above the Fort Apache Limestone. Actinocoelia maeandrina photos and description: Finks, R. M. 1960. Late Paleozoic Sponge Faunas of the Texas Region: the Siliceous Sponges. American Museum of Natural History, Bulletin 120 (1): 160 pp., 50 pl. link. Photo 11: an unidentified sponge that looks like a Chaunactis sp. found in the Pennsylvanian Naco Formation in the area. View about 3 cm across. See: 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. link. Photo 12: an unidentified sponge that looks like a Chaunactis sp. found in the Pennsylvanian Naco Formation in the area. View about 2 cm across. Photo 13: an unidentified specimen that looks like a sponge root structure. 7 cm across. Photo 14: detail of above possible sponge root structure. 3 cm across. Photo 15: Parallelodon anarklastum. Blue lines are about 7 mm apart. Photo 16: hinge view of Parallelodon anarklastum. Blue lines are about 7 mm apart. Photo 17: probably Oncochilus insolutus. Blue lines are about 7 mm apart. Photo 18: Lophamplexus? sp. Blue lines are about 7 mm apart. Photo 19: Straparollus (Euomphalus) sp. Blue lines are about 7 mm apart. Photo 20: several Bellerophon sp. shells with tear-drop shaped borings from barnacles, Rogerella. A Blue lines are about 7 mm apart. Photo 21: Palaeonucula levatiformis bivalves with pronounced dentition. Blue lines are about 7 mm apart. Photo 22: Straparollus (Euomphalus) kaibabensis. 4.5 cm across. It looks almost like a coiled cephalopod except for its square aperture. Photo 23: Plagioglypta canna scaphopod. 7 cm long. Photo 24: and now a fossil from a different age found on the trip. Silicified stromatoporoid, a sponge, from the Devonian Martin Formation. The conical bumps on each layer are mamalons so named since they look like breasts. Blue lines are about 7 mm apart. Edit My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Reply to this topic IPS Theme by IPSFocus Theme C The Fossil ForumPowered by Invision Co
  21. Permian Sponge?

    I found this 4.75 inch long silicified sponge? branch after dissolving a large piece of the Permian (Leonardian) Fort Apache Limestone from the Schnebly Hill Formation east of Payson, Arizona in four gallons of pool acid. Only about five percent of the fossil was exposed. The outer part is denser than the sometimes nearly hollow interior. One cross section shows two tubular structures with denser edges. No organized patterns suggesting a bryozoa or coral branch are present. Do you think that this is a piece of a branching sponge? Top photo: cross section is 1 inch. @Arizona Chris Branch is 4.75 inches long. Bottom photo: cross section is 0.5 inch across.
  22. Arizona sponge

    I found part of a sponge from the Pennsylvanian Naco Formation. The sponge is 5 cm in maximum width. The needle like structures average about 0.2 mm in diameter. Are the needle like structures part of a sponge body or part of the roots? Species? A cross section shows the needles radiate from the center. Photos: 1 top 2 bottom 3 cross section 4 detail
  23. I bought this silver bracelet and I would really appreciate an opinion as to whether the stone could be Arizona petrified wood. I assumed it was maybe picture agate, but a couple people thought maybe it was petrified wood. The bracelet is unsigned and is very heavy gauge silver.Thanks for your help.
  24. I will be visiting Phoenix in May and am looking for someone to go digging with. I have done the site NW of Payson (corals, bryozoan)
  25. Turning Lemons into Limes

    Here are some more Miocene plant fossils from lake sediments north of Phoenix, Arizona. The first large piece of brownish chert, a lemon, had poorly preserved stems. Because the lake sediments had abundant uranium, the rock glowed bright lime green under short wave UV light. Organic matter often attracts uranium deposition.The second piece in the third photo has a great impression of plants that looks like it could have been created in fresh concrete yesterday. Field of view in all photos 6-9cm long.
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