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Found 81 results

  1. 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.
  2. Fossils in Wren's Nest

    Hi. I visited Wren's Nest, Dudley, UK last summer. Just wonder if the fossils shown in the photos were corals or sponges. They were not uncommon but both were possibly damaged by diggers who attempted to excavate them. My apology the subject was a bit out of focus. Thanks. KS
  3. I've just added two sponges to my collection which I found recently in the Kimmeridgian Lochen Formation in the upper Danube Valley near Beuron. The first is the appropriately named Melonella radiata and the second is a Trochobolus texatus.
  4. Fossils on Wheels received another generous donation to our education programs this week. TFF member @Herb sent us a box of super cool invertebrates. He sent us a diversity of fossils from the Southern US that cover a wide range of eras. These fossils will be given to students in fossil starter kits and used in hands-on activities. Herb's donation is also awesome because this pushes me to learning a lot more about invertebrate fossils. One of the best parts of teaching kids about natural history through fossil exploration is that I get to learn a lot. Good teachers learn and challenge themselves so they can challenge their students. I do not have a lot of knowledge about these types of animals but I am so excited to start learning. Among the fossils we received were- Mississippian Corals and Brachiopods from Kentucky, Crinoid stems and Silurian sponges from Tennessee, Cretaceous Gastropods from Texas, and Eocene Bivalves from Alabama. Thank you Herb for a generous donation that will get put to good use
  5. Crinoids and corals?

    I found these fossils on Jebel Hafeet, Al Ain, UAE. The second rock looks like there is a criniod in it, but is more possibly a type of sponge. The first rock has quite a few things in it, including some type of coral. I would like to know what these really are.
  6. Sponges?

    These are all over our desert property in southeastern Cali. Various shapes, sizes, textures, and colors but I grouped some similarly textured ones for this photo. The ones pictured in the group are all lightweight with the texture of coral but we have many others with the same shapes & paisley-like designs (hard to see in photos) but made of smoother rock. I thought for a long time the pink thing in the last set of photos was someone's old spilled paint. It's about 12" wide. Any ideas?
  7. Has anyone visited Mazourka Canyon Road East of Independence? YouTube videos in the last year show a reasonable road and Donald Kenney [http://donaldkenney.x10.mx/SITES/CAMAZOURKA/CAMAZOURKA.HTM] lists a number of sites and the possible fossils. BFLADY
  8. From the album Lower Devonian

    Hindia sphaeroidalis (Demosponges) Lower Devonian Kalkberg Formation Helderberg Group Interstate 88 road cut Schoharie, N.Y.
  9. MASS ID: sponges, corals, etc

    Most come from Illinois, and are as I figure corals and spines; question is what kind, and which? I apologize in advance, but instead of posting 20 threads for each one, I’m going to spam this one with all my sponge, coral, etc inquiries. So please be patient! (Thanks again guys for all your help! I only post the ones I cannot 100% identify via books and internet; unfortunately I gotta snarge ton more yet to come.) Here are items #1-3...
  10. Lack of snow cover and warmer than average temps allowed me to explore and collect sponges and corals from the Pennsylvanian Naco Formation in central Arizona, north of Payson. Widespread chert of the Beta Member suggests that silicious sponges may have been common. Several have been identified but many more exist. I have seen and collected several undescribed species. Dilliard and Rigby have described several sponges including Chaunactis olsoni which I found in the area: The New Demosponges, Chaunactis olsoni and. Haplistion nacoense, and Associated Sponges from the. Pennsylvanian Naco Formation, Central Arizona. by DILLIARD and RIGBY http://geology.byu.edu/Home/sites/default/files/geo_stud_vol_46_dilliard_rigby.pdf EDIT: geo_stud_vol_46_dilliard_rigby.pdf Photo 1a. Detail of undesribed sponge. Marks are 1/16th inch. Any ideas? Photo 2. 3/4 quater view of sponge in photo 1a. Note red 1/3 to 2/3 inch thick pancake-like form of sponge. Photo 4. Top of another similiar sponge. Marks are 1/16th inch. Help me ID 2 corals and one sponge. Photo 3. Coral, Multithecopora?, which has been reported from the Naco many miles to the south. Photo 5. Probably Chaetetes, a side view. Photo 5a. Top of Chaetetes. Photo 6. Horn Coral, Zaphrentis? 1a.docx 2.docx 4.docx 3.docx 5.docx 5a.docx 6.docx
  11. Not settled yet

    I consider this important insofar as the various reasons for ,and processes involved in,marine invertebrate settlement are still being elucidated. uedanitrogenporiferasrep37546.pdf A must read for those with an interest in marine (paleo)-ecology Recommended for the deliciously informative fig.7 alone. 2,8 Mb,and it's from THAT journal
  12. Stromatoporoid Growth Forms?

    Lately if you have seen some of the topics I've started, these trips revolve around an Ordovician reef I came across by the Credit River in Mississauga, Ontario. One of the few things I discovered while exploring these spots is that there are plenty of Stromatocerium sponges which I red is a stromatoporoid. My question is, can anyone lead me to any papers about the growth forms of Ordovician stromatoporoids? I have found specimens of stromatoporoids and from the way I see it, some of the specimens I found of the same species have different growth forms. Some have those things they call monticules on the surface, and some don't exhibit them at all. Instead these specimens exhibit cracks and splits on the surface of the organism with irregular bumps and overgrowths. I'd like to know what causes this. Some of these sponges, from what I have collected, colonize some pieces of Prismostylus on the top.
  13. From the album Cretaceous

    Cliona cretacica (traces of boring sponge on Pycnodonte convexa (oyster shell) Upper Cretaceous Navesink Formation Poricy Brook Middletown, NJ.
  14. Cannot identify

    Hi all, I'm fairly new to this forum and fossil hunting in general. I need help identifying these, idk if they are coral, sponges, posibally bone or what. These were found in NE Kansas, in a rock deposit full of bryzoans, bivalves and other oceanic fossils. I do know the majority of these fossils here come from around the Cambrian through the Permian periods, however there have also been a few ice age fossils in the area, so that may help. Thanks a lot!
  15. sponges ?

    Hi, i come back to you again because i tried to figure out what might be items i found in the Senonian of Touraine in France without success. Most of them, i believe are sponges. 1) about 3,5 cm round
  16. 61.jpg

    From the album Sponges (Point 1).

    Sponge.
  17. 60.jpg

    From the album Sponges (Point 1).

    Sponge.
  18. 59.jpg

    From the album Sponges (Point 1).

    Sponge.
  19. 58.jpg

    From the album Sponges (Point 1).

    Sponge.
  20. 57.jpg

    From the album Sponges (Point 1).

    Sponge.
  21. 56.jpg

    From the album Sponges (Point 1).

    Sponge and clams.
  22. 55.jpg

    From the album Sponges (Point 1).

    Sponge.
  23. 54.jpg

    From the album Sponges (Point 1).

    Sponge and unknown piece.
  24. 53.jpg

    From the album Sponges (Point 1).

    Sponge.
  25. 52.jpg

    From the album Sponges (Point 1).

    Sponge.
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