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  1. Hello 👋 I am so happy to have found this forum! I have already gleaned some excellent I formation and look forward to more. I am an avid researcher. If my interest in something, in ANYTHING is piqued, I have to KNOW all there is to know about that particular subject. A blessing and a curse. My curiosity is rarely, if ever, fully satisfied. I have been told by many, many experts that several of the things I have been finding recently are absolutely NOT in Southeast Kentucky amd I MUST be mistaken. Ummm... I live in Southeast Kentucky and most (99%) of what I have found in the past several months has been from an area within 10 miles of my home. So, what am I missing? Only so much can be explained through the occasional drop or glacial deposits. Just in the past 24 hours I have found over 30 small geodes! All between 1 inch and 4 inches in diameter. All within 30 yards of each other. NOT in or near water. Also found were bits of agate, small agate nodules, crinoids, crinoid crusted geodes, loads of Rugose (horn) coral, etc...
  2. Putting a shout-out here to see if any members have any nice specimens of pet wood from the Blue Forest locality in SW Wyoming. A researcher in the paleobotany department of the Florida Museum (FLMNH) is doing research on the species that are found in this locality. She has already identified several specimens as palm and (interestingly) a species in the avocado family. She is presently searching for additional specimens to possibly widen the floral diversity of this site. https://www.mindat.org/loc-216297.html I gave away virtually all of my specimens that I collected back in 2009 and my remaining pieces are presently on display in Powell Hall (the public display museum) on campus (see below). If any members out there have some nice pieces from this locality that they might wish to offer up for research purposes I'd appreciate hearing from you. If you can PM me with some nice (higher resolution) clear images of your specimens I'll forward those on to the researcher to see if they appear to be useful for her research. Thanks in advance. Cheers. -Ken
  3. SilurianSalamander

    Agatized/silicified cephalopods?

    Are these cephalopods in chert? They appear to be agatized as well. The first two pictures are from a chunk of chert and agate that I split to find what looks like the chambers of a nautiloid cephalopod. Is this a fossil or just some way silica forms? Thanks so much!
  4. Andúril Flame of the West

    A Foray Into the Ordovician

    For some time, I have been wanting to check out some of the lesser known formations that exist in my local area. The Devonian Mahantango Formation and the Needmore Shale are undoubtedly fun to explore and yield some beautifully preserved specimens - something that can be seen in a number of posts on this forum - but I still had the itch to collect from something a bit more obscure. That opportunity presented itself in the Ordovician limestones that expose intermittently in western northern Virginia. A small body of literature exists describing these formations and analyzing their fauna, particularly the silicified trilobites they are best known for, but they do not seem to be nearly as thoroughly explored as nearby Devonian formations. Armed with my trusty Estwing, an overly chipped chisel, and the hope of uncovering some silicified trilobites, I headed over to one of the better known Ordovician exposures in the Virginia area. This particular exposure is quite large and unique due to the different formations it exposes. The road cut begins beside a small stream (in which limestones can also be found) and is composed of large, white largely unfossiliferous limestone. This limestone represents either the New Market Formation or the Lower Lincolnshire limestone. As one moves rightward along the exposure, the white limestones continue for some time before grading into significantly darker limestones. These, which are part of the Upper Lincolnshire limestone, have been interpreted to represent the Taconic orogeny which took place in the Appalachian region during the latter part of the Ordovician period. The dark Upper Lincolnshire continues for an appreciable distance as one travels right until it eventually transitions to the Edinburg limestone. The Edinburg limestone, which is composed of alternating beds of limestone and shale, also represents a period of rather intense deposition caused by erosion of the mountains that had formed during the Taconic orogeny. The Edinburg limestone at the exposure appears white to dusky grey due to weathering, but, interestingly enough, when it is chipped, the true jet black coloration of the limestone is revealed. The sequence continues past the bounds of the road cut that I explored, with an exposure of the Martinsburg Formation - which is yet younger than the Edinburg formation - exposing not far from the road cut. Here are a few pictures I took of the road cut. Unfortunately I did not have a chance to take more pictures, and I am not exactly sure as to the specific formations each photograph depicts. I briefly explored the Upper and Lower Lincolnshire limestones, but I did not find much with regards to fossil content. Most of my exploration was focused on the layers of the Edinburg limestone, which I had heard were the most productive with regards to silicified trilobites. Unfortunately, I do not believe that I recovered any silicified trilobites from the exposure. However, I did manage to find some silicified brachiopods in varying states of preservation and a number of other interesting fossils that I have not been able to identify. Now, let's delve into some of the finds . Brachiopod 1: Brachiopod 2: Brachiopod 3: Brachiopod 4: Brachiopod 5: Brachiopod 6: This particular brachiopod previously had more of the (silica?) coating, though I believe I inadvertently removed it by treating the specimen with concentrated vinegar. I would not want this to happen to any other specimens, but Brachiopod 3 and some of the others would certainly look very nice if some more of the limestone/mineral coating could be removed. Would there be a way to do this without physical preparation techniques (I do not possess the proper equipment for this and even if I did, I would be afraid of ruining the fragile specimens)? Brachiopod 7: This was one of the best preserved brachiopods that I found, which was quite ironic since it happened to be exposed to the elements right on the surface of the limestone. The photographs are not the best and I can certainly take more if they are needed. Brachiopod 8: Brachiopod 10: There were more brachiopods uncovered... but I think that is enough for one post. Now for some interesting microfossil hashplates that I decided to keep. Hash 1: Under the Microscope: Hash 2: Hash 4 Here I have included some photographs of some specimens that I have not been able to readily identify. Any help in identifying what organisms they are and even what genus/species they could be would be greatly appreciated! Below each one I have included a tentative guess as to what each fossil is. Unknown 1: I believe that this may be a weathered brachiopod viewed from the inside of the shell. Unknown 2: An interesting feature of the limestone or perhaps a preserve fragment of an arthropod/trilobite carapace? Unknown 3: I would guess that this piece would have the same origin as the specimen pictured directly above. Unknown 4: Same as the previous two unknowns? Unknown 5: One of the larger and more interesting specimens that I found at the exposure. I am not at all sure what it is, though I would guess that it might be part of a graptolite or bryozoan. I'd be very curious to hear what others think about this specimen in particular. Unknown 6: Not at all sure what this is. To me it looks like it is a fossil, but it could very well be a mineral stain of some sort. Unknown 7: Upon first cleaning this specimen I thought that it might be a very weathered brachiopod. However, after inspection under the microscope it seems to me that it might simply be a mineral deposit or a geological feature. Unknown 8: An interesting piece of detritus found on the plate containing Unknown 5. Unknown 9: I would imagine that this is either an encrusting bryozoan, a sponge, or a fragment of trilobite cephalon. Unknown 10: Unfortunately I do not have a larger, better picture of this specimen. I will try to take another photograph of this one. I do believe that this might be some sort of fenestrate bryozoan. Although most of the specimens were smaller than those I am used to collecting, I was glad to have some interesting mysteries and to have the Ordovician represented in my collection. All of the micro photographs that I took were taken using a Celestron Microcapture Pro Microscope, which has been working phenomenally to view even some of the smallest fossils. I hope that you enjoy reading this post and I want to extend my gratitude in advance to any who help with identification of the specimens! (Edit: Not sure why these photographs keep appearing at the bottom of the post. Does anyone know how to fix this?)
  5. Holger Hartmaier

    Stromotoporoid- Possible localities?

    I recently acquired this fossil in a garage sale. The seller was not specific about the locality, saying possibly Wyoming. It was identified as a stromotoporoid by individuals in the Mindat group doing fossil ID. I am interested in possible localities. The fossil is silicified to a brown, jasper or cherty material (can't scratch with a knife blade). The attached photos show one side a saw cut face and the other the naturally weathered face. It appears to be possibly wind eroded.
  6. SilurianSalamander

    Beekitized stromatoporoid sponge?

    Found at work among crinoid, brachiopods, silicified corals as well as a possible cephalopod and some silicified stromatoporoids. Silurian SW Wisconsin. Looks kind of like a cartoon bone in shape
  7. SilurianSalamander

    Horn coral or bryozoan colony?

    Found in landscaping gravel at a gas station on a 6.5 hour drive to Lake Huron for some fossil hunting. This is probably Devonian. Instinct tells me horn coral but it looks rougher than that and lacks visible septa at the top. Bryozoan colony? That’s my next best guess. Thanks! Love you guys.
  8. Hey all! I am currently helping to identify rocks and minerals for a museum and came across this piece of, what I believe is, petrified wood. I have never seen one that looks like this, however. It is highly solicified and looks rather similar to a zebra mussel. Any thoughts on what kind of petrified with this might be if at all?
  9. I saw this chunk on a sales table at the recent Rendezvous of BC rockhound clubs here on the Island. Had to have it, though I keep telling myself to avoid fossils with no provenance. Anyone recognize it or have any hunches as to ID and especially location of origin? I guess somewhere on the eastern half of the continent... It appears to be a mix of cherty and crystallized composition. Whoever owned it before didn't treat it very kindly (lapidary types)... Apparently there once was a label of some sort glued to the top, and the rough saw cut which I hope to flatten better and polish someday.
  10. Hello! Please take a look at this group of sub-millimeter grains and let me know if they belong with fossils. Micro gastropods ? Eggs ? Sand ? They are firmly attached inside a superficial fracture of this (presumed hornfels) rock. I brushed the rock with water and soap, washed it in vinegar, polished some parts of it - but the grains are still there. I suspect they are silicified, "glued" to the rock. All the black grains look kind of the same, including shape; the white grains also show a kinship between them, maybe. The black and the white grains seem to be all related, somehow. All the photos and a few close-up cinematics are in this album: https://photos.app.goo.gl/XRdjRisg8N4AeXTj7 The precise location where I picked up the rock is shown in the album (Braila county, Romania), could be an alluvial deposit. This camera and the app that I'm using are forcing a strong black/white contrast; with a loupe one can see more gray tones. Thanks!
  11. I would appreciate some help identifying some of my latest finds. Since I am in Southern Indiana, I know many of my finds are silicified or geodized and I kind of know what some of them are but I want to be sure. I apologize if this post seems to be a bombardment of pictures that I am asking help identifying but I didn't want to post too many separate posts. Hopefully I've correctly uploaded pictures & if I am doing anything incorrectly please give me advise. First are what look to be turtle shells or are they just geodes moonlighting as turtle shells?
  12. I_gotta_rock

    Fluorescent Petrified Wood

    From the album: Fluorescent Petrified Wood

    Cypress Wood, viewed under white light (top) and short-wave ultraviolet light (bottom) Miocene Odessa, Delaware

    © copyright 2021 Heather JM Siple

  13. Whittington, H.B. and Evitt, W.R., 1953. Silicified Middle Ordovician trilobites (Vol. 59). Geological Society of America. https://pubs.geoscienceworld.org/books/book/65/Silicified-Middle-Ordovician-Trilobites (free download until June 30, 2020) Whittington, H.B., 1959, Silicified Middle Ordovician trilobites: Remopleurididae, Trinucleidae, Raphiophoridae, Endymioniidae. Bulletin of the Museum of Comparative Zoology at Harvard College. vol. 121, pp. 369-496. https://www.biodiversitylibrary.org/part/32962#/summary https://www.biodiversitylibrary.org/page/4778534#page/501/mode/1up Hu, C.H., 1974, September. 635. Ontogenies of two Middle Ordovician trilobites from the Edinburg Formation, Virginia. In Transactions and proceedings of the Paleontological Society of Japan. New series (Vol. 1974, No. 95, pp. 353-363). Palaeontological Society of Japan. https://www.jstage.jst.go.jp/article/prpsj1951/1974/95/1974_95_353/_article/-char/ja Hu, C.H., 1976, April. 657. Ontogenies of three species of Silicified Middle Ordovician trilobites from Virginia. In Transactions and proceedings of the Paleontological Society of Japan. New series (Vol. 1976, No. 101, pp. 247-263). Palaeontological Society of Japan. https://www.jstage.jst.go.jp/article/prpsj1951/1976/101/1976_101_247/_pdf/-char/ja https://www.jstage.jst.go.jp/article/prpsj1951/1976/101/1976_101_247/_article/-char/ja/ Bruton, D.L. and Nakrem, H.A., 2005. Enrollment in a Middle Ordovician agnostoid trilobite. Acta Palaeontologica Polonica, 50(3). http://agro.icm.edu.pl/agro/element/bwmeta1.element.agro-article-e5a5ef53-3af9-4efd-b8b3-ca3006e0e32d/c/app50-441.pdf Yours, Paul H.
  14. Croxen

    Silicified bone

    Found this any info is appreciated. No limestone and not much quartz in the area this was found. Everything about it is very hard and possibly silicified. Thanks Jason
  15. I_gotta_rock

    Fluorescent Silicified Cypress Wood

    From the album: Fluorescent Petrified Wood

    One of Delaware's many mysteries is the petrified wood found near Odessa and Smyrna. The general consensus is that is cypress wood of some kind and it was buried under Pleistocene sediments. However, the origin of the wood and the age have yet to be figured out. Some say Miocene. Others say as old as Cretaceous. There are no other co-occurring fossils in the deposit to give any clues. The photo on the right was taken using a 395 nm UV lamp.
  16. Hi, all, A friend over on the Facebook group "Great Lakes Rocks and Minerals" recently posted this little silicified pebble she found along the shore of Lake Michigan, northern lower peninsula. The tiny pores got several of us on the group curious about whether we could narrow down a possible ID. Someone initially suggested heliolitid, but I think we ruled that out because there doesn't seem to be enough room between corallites for coenenchyme. We decided it must be some species of small-celled favositid, but is it possible to narrow beyond that? (My gut says probably not, since we don't have thin sections or better views!) I was curious about Astrocerium (referred to as Favosites venustus in older descriptions). It's described from the Silurian (Niagaran) of Michigan, which seems to fit with this style of silicification. Also, I think I see what might be interpreted as spinules in some of the corallites, but maybe this is just an effect of silicification. Plus, I guess spinules are pretty common in favositid species, so it could be any number of small-celled species of Favosites or Emmonsia. If anyone has examples of Astrocerium from their collection, I would love to see photos! P.S. Hope it's okay to tag you two, @TqB and @FossilDAWG -- wasn't sure of other coral experts to ask, though I know they are around! Thanks much! Lisa
  17. 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
  18. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. Miocene New Castle County, Delaware
  19. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. Miocene New Castle County, Delaware
  20. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. Miocene New Castle County, Delaware
  21. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. Miocene New Castle County, Delaware
  22. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. Miocene New Castle County, Delaware
  23. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. The black, crystalized material is probably dendrites. Miocene New Castle County, Delaware
  24. I_gotta_rock

    Petrified Wood

    From the album: Delaware Fossils

    Generally considered to be cypress wood, but there is some evidence for larger species in the Cupressaceae family. Miocene New Castle County, Delaware
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