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Found 16 results

  1. Location is in Missouri The area is dated to the Pennsylvanian Formation: ???? Hello! it is I once again I was curious on what this might be as it looks different from what I usually see in this type shale I have found Pyrite Calamites in shale but they usually don't have this texture so I was unsure of what exactly it may be. Zoomed in picture of the texture: Other side of this shale: Not Sure if these will help with the ID but here is the picture with the end pieces visible
  2. Vyrago

    Ammonite, species?

    I recieved this ammonite as a freebie with another, larger ammonite. It is pretty tiny, maybe .7 inches across at the largest. Can anyone identify the species, so I can label it on my shelf?
  3. Saturday the Paleontological Society of Austin visited the "Waco Pit". For those of you who are not familiar this is a very large borrow pit from which the US Army Corp of Engineers dug material for the building of the Lake Waco Dam here in Central Texas. The pit exposes the Del Rio clay which is part of the Washita Group, Lower Cretaceous (earliest Cenomanian Stage). What makes the pit special is that it produces a really interesting micro fauna along with the normal sized fossils common at other locations. The microfauna includes lots of tiny pyritized ammonites and other mollusks. When
  4. Hi, I'd like to ask for a destination. I think the partially pyritized sample is Ortoceras. I also see the undressed part of Omnia Superba there. And I can't handle the trilobite, also stripped headless. Is the order of Calymenin possible? Ordovik - Czech Republic
  5. I have come across, for sale, a pyritized agnostid trilobite from the Wheeler Shale. I was curious if anyone had seen these before, and if so, how susceptible were they to pyrite disease? It's quite a nice specimen but I don't want to waste money if it's guaranteed to rot in a year or two.
  6. facehugger

    North Sulphur River - Weird Finds

    Some of my odder finds from North Sulphur River. The pyritized baculite and the preserved skin were both found in the Ladonia area. The baculite was initially powdery white on the exterior, with just a bit of metallic luster showering. A light scrub with a soft toothbrush revealed the rest. The skin appears reptilian, but I would love further insights.
  7. This is said to be a pyritized Anosteira maomingensis from Guangdong of China. Is it genuine?
  8. UPDATE: Thanks to the help of @Fossildude19, @Al Dente and @abyssunder, (plus others), I'm currently listing this as a Buchiola sp., a bivalve from the upper Hamilton. This little fella is about 8mm across. I have yet to find another example at the site. It was found in the pyrite beds, so it's a float from somewhere, but I couldn't tell you where. It's from Penn Dixie, it's Middle Devonian, Hamilton Fm. That's what I know. Absolutely beautiful little piece. But I have no idea what it is.
  9. Is it worth buying Pyritized fossils (ammonites, etc) for display? I have read many times about them being damaged by "pyrite disease." I am not interested in buying one of these fossils if I have to keep it sealed away. Thank you.
  10. Ammonites from Madagascar are readily available in rock stores around the world. Dating from the Mesozoic, these ammonites represent an extremely affordable example of prehistoric sealife. In Cretaceous deposits, the iridescent nacre is preserved, encasing interior structures replaced with a variety of minerals. Yet, pyritization (replacement with Iron Sulfide, formula unit FeS2) is uncommon. However, I recently received some pyritized examples from the site - the first I've seen in person. Attached are pictures of some of these interestingly preserved ammonites, including a comparison with Pe
  11. I'm going to be making a trip to the Waco Pit this weekend, and I'm hoping to find some pyritized ammonites. If I get lucky and find some, can I use butvar to help preserve them? Also, is there any way to shine them up just a bit? I know a harsh polishing scrub would damage them, but what about something like a toothbrush to get them clean?
  12. nivek1969

    Crinoid fossil

    This rather amazing Crinoid fossil I did not find myself, sadly enough. It's from Sylvania, Lucas County, Ohio. I bought it at a local auction, probably for too much, but it caught my eye and I had to have it. I have found plenty of Crinoid stems in Texas when I was a kid. The "sea lily" stem segments were everywhere in the Dallas suburbs creek beds, and gravel parking lots even. My friend and I filled plastic bags full, sometimes they were around .5" wide. I lost most of my collection of local fossils I found back then from moving a lot and having a storage unit broken into and robbed (lost a
  13. The QCC

    Small star shaped fossil

    Is this an Echinoid? I found this on the end of a piece of pyritized coral I received from Bob O'Donnell. It looks like the teacher gave the coral a gold star for brilliance. It is approximately 1mm across it's points. Microscope: Zeiss Stemi 305edu, 2x photo eyepiece. Camera: Canon 1000d: 1x objective (2x mag.) 2x objective (4x mag.) 6x objective (12x mag.)
  14. WhodamanHD

    Pyritized ammonite

    From the album: WhodamanHD's Fossil collection.

    Im not sure the species or where it came from.
  15. britishcanuk

    pyritized ammonite from the UK

    Going through some fossils I've had stored for ages and was wondering if anyone could give any insight into what species this is. I found it many years, but unfortunately I don't have any collection info with it. cheers!
  16. Hi, I am lucky to be near a great source of pyritized fossil wood, but have had little joy in my attempts to clean and preserve a nice piece for my display. If anyone has any knowledge or good advise on this subject I would be grateful for any help.
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