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Found 274 results

  1. Montagne Noire,a short piece

    FeistCourtessolebiogeograsiantypepaleozoictrilobcracscparisi1984.pdf Decouverte de Cambrien Superieur a trilobites de types est-Asiatiques dans la Montagne Noire(France meridional) Raimund Feist,Robert Courtessole C.R Acd.Sc. Paris,t.298,serie II,no 5/1984
  2. Naraoia longicaudata Zhang and Hou 1985

    From the album Invertebrates

    Naraoia longicaudata Zhang and Hou 1985 Early Cambrian Chengjiang Yunnan PRC
  3. Lit.: Y.-L. Zhao, R. L. Parsley, and J. Peng. 2007. Early Cambrian eocrinoids from Guizhou Province, South China. Palaeogeography, Palaeoclimatology, Palaeoecology 254:317-327
  4. Burgess Shale New Species!!!!

  5. Ediacaria booleyi (McGabhann 2007)

    From the album Trace Fossils

    13x8cm. This may or may not be a trace fossil. It was first thought to belong to the Ediacarian fauna, but now it's at least thought to be of organic origin. Called a Pseudo-Ediacaria at the moment. Booley Bay Formation Ribband Group Drumian Middle Cambrian Site: Booley Bay, Hook Peninsula, Wexford County, Ireland
  6. Guizhoueocrinus yui

    From the album Invertebrates

    Guizhoueocrinus yui Early Cambrian Kaili Biota Xiasi Guizhou PRC
  7. Trilobite - Nevada.

    Hello, friends! Not too much to go on, so I'm not expecting a definite id, really, but if anyone does have any guesses, I'd be really grateful. I received this as part of a gift and it was simply labelled "Trilobite - Nevada". The only other information the sender could tell me was that it had been found by someone else in "a canyon", not much help. I can tell you that the trilobite is 3 cm long (what's left of it) and is preserved in a soft, very thinly layered pale grey shale. It's probably going to be Lower to Middle Cambrian, maybe an olenellid? Any help would be most appreciated. Thank you! Cheers, Adam @piranha
  8. Please take a look at this post:
  9. https://www.sciencedaily.com/releases/2018/10/181015113522.htm
  10. Redlichia chinensis trilobite

    From the album Purchased/Gift Fossils

    Redlichia chinensis, Middle Cambrian, Yunnan China.
  11. I have noticed lately that a lot of fossils of so called Sabellidites cambriensis are popping up on a lot of sites for sale. They're sold as basal annelid worms that arose during the terminal Ediacaran. They predominantly are coming from the Lontova formation, dated at ~541-545 Mya, which is more or less the Ediacaran/Cambrian boundary. I would think that such fossils would be of great interest to researchers since, assuming they are basal annelids, they would represent one of, if not the first, appearances of a modern phylum in the fossil record. Yet the literature on this species is very sparse, with no more than half a dozen papers having been published since it's initial description in 1926. Does anyone here have any information on this subject?
  12. This is a piece that I picked up on a geology field trip years ago in eastern New Mexico. I apologize that I have unfortunately lost the field notebook that contains more specific location information, but I am hoping to get in contact with the teacher that took us there for other reasons and might be able to provide additional information if I can ask him. The section was Cambrian to Ordovician in age: it started with abundant stromatolites, then progressed into thrombolites and finally siliciclastics disappeared during the Ordovician sea level high-stand. If my memory serves, I believe these were found from relatively low in the section and so should be Cambrian, but it has been long enough (about 12 years) that I would not stake my life on that. Since it may be hard to tell from the photos, these are essentially organic material on the surface of the rock with no visible depth at all. I am honestly a little stumped on this ID and, without the field notebook, I simply can't remember what my professor said about them; I remember that I did not know the word he used at the time, but I was new enough to invertebrates that that could mean almost anything. My best guess is that they are gorgonians, but I am probably several phyla removed from the right ID. I am happy to take any additional photos if they will help. Thank you for your thoughts!
  13. Sponge or archaeocyathid?

    This is a piece that I picked up on a geology field trip years ago in eastern New Mexico. I apologize that I have unfortunately lost the field notebook that contains more specific location information, but I am hoping to get in contact with the teacher that took us there for other reasons and might be able to provide additional information if I can ask him. The section was Cambrian to Ordovician in age: it started with abundant stromatolites, then progressed into thrombolites and finally siliciclastics disappeared during the Ordovician sea level high-stand. This piece was found from amidst microbialites, so should be Cambrian in age. My professor identified it as a "sponge" at the time. I am wondering if it is perhaps an archaeocyathid based on the age and the central hole. Either way, if anyone that is more familiar with that area has thoughts on any more specific identification, I would be thrilled! Please ask if you need photos from a different angle or anything like that. Thank you very much!
  14. Hello for all. It has been a while to leave a post here! I am currently in Burlington, VT as a UVM student. Before the end of the summer recess (August 18), I traveled to northern Vermont consulting some articles about Cambrian and Ordovician formation located in Highgate Falls and South Hero. In this post, I will just talk about one trip to Highgate. I left my dorm around 11 a.m., and I get the Higate Falls near 1 p.m. After straying about 3 hours, I finally realized that the outcrops described as fossiliferous in the article are located in the private land. Thanks to my student ID card, the landowners welcomed me I could not hunt fossil around the Ordovician formation (Highgate Formation; Upper Ordovician) because the cliff was really steep and seemed very dangerous. It is on the left side of the picture (Red line). So, I just focused on the right side (Yellow line) that is Gorge Formation (Upper Cambrian, Upper Sunwaptan Stage, 492-491 MYA). Below is a photo of the Gorge Formation I found some trilobites and brachiopods (not on this post), but I have no clue about their scientific name even though I checked my article... I would appreciate if you correct the wrong scientific name 1. Lotagnotus americanus Billings, 1860 2. Geragnostus ( Micragnostus ) bisectus (Matthew, 1892) (Shaw, A. B. (1951). The Paleontology of Northwestern Vermont. 1. New Late Cambrian Trilobites. Journal of Paleontology, Vol.25, No.1, pp.97-114.) 3. Librigena.
  15. trilobite in river?

    It is in the Changxing island of Dalian, a port city located in NE China, somewhere near Korea. The calcite/dolomites seems to have some scattered trilobites pieces. But the dolomite and clay layers stack up alternatively, which is not supposed to be marine face? BTW, the rocks are supposed to be of Early to Mid Cambrian period. I can not tell the speices of the trilobites. I do not know if they are heads or tails.
  16. https://www.natureasia.com/en/research/highlight/12700 https://www.nature.com/articles/s41598-018-31499-y
  17. Well I was going to add on to my post from 2 days ago, but I just decided to do a new one since it is a second visit to Murray County, Georgia to collect Cambrian trilobites from the Conasauga Formation. Today was another great days in the 80’s and it is nice to collect underneath the bridge, since you are in shade the whole time. Since my brother had to work today, I collected by myself, as I usually do. If members have not seen the area from previous posts, I will add some below that I took today. Here is a view from on top, prior heading to the collecting site. The next view is looking up at steep climb to get back to the top. Here is the collecting area. And a view of the Conasauga River, it is very low. Here are a few of my finds from today, I like to take more pics, but since I do it in the field, and cutting pieces down to size, it takes away time from collecting. Aphelaspis brachyphasis Here is a a great piece with 7 trilobites. Some of the really little ones ones are preserved very nicely. I also collected matrix to take home so I can work on it in the winter.
  18. Conasauga Shale

    Made it down to the Conasauga Shale as the last of 10 sites on a 4-state, 6-time-period collecting expedition in mid-august. I'll post reports on the other sites (as well as other trips earlier in the summer) later. I elected not to split shale on-site and just collected shale for splitting in a controlled environment. I'm only interested in trilobites that still have the exoskeleton (rather than just impressions). I gently tap the shale until I see a fine crack in a bedding plane and then carefully pry it apart with an Xacto knife. The exoskeletons usually have a hollow space above and below them and are terribly fragile. One must hope that all the exoskeleton ends up on one side of the split. Any still unexposed require tedious removal of matrix under a scope with a fine needle while trying to avoid poking through the exoskeleton into the hollow space underneath. I wick consolidant under the exoskeleton to prevent it from flaking off. Even blowing on it can knock it off. Here are the keepers.
  19. The subject of this article is probably old news....but they spent a significant amount of space highlighting the importance of amateur collectors and thanking them for their contributions. Thought it might be nice to read about that http://www.geologypage.com/2018/09/half-billion-year-old-fossils-offer-new-clues-to-how-life-exploded-on-the-sea-floor.html
  20. Eocrinoid

    Found as float in a bulldozed area.
  21. Need help Id may be Trilobites Not sure

    Found fossils in Little Belt Moutain, in Montana. Sandstone, from Park Formation, listed as Franconian, Cambrian. Each fossil fragment is about 5mm. Other fossils present. Need to find the Identification for the dark brown shell-like fossils. I believe they may be parts of trilobite cephalons.
  22. Sinoeocrinus sp.

    From the album Invertebrates

    Sinoeocrinus sp. Middle Cambrian Kaili Guizhou PRC
  23. Planning a fossil hunting trip to the Gold Point, Nevada. Anyone have specific fossil locations? Dan
  24. Spot the Vetulicola?

    There is a Vetulicola (partial) somewhere on this piece, I have been looking at it for awhile but I can't really spot where it is on here, anyone more familiar with Chengjiang fossils able to spot it or id for sure as vetulicola?
  25. Mud or Tracks??

    When I hunt trilobites in the Eau Claire Formation, Cambrian, I encounter this type of rock frequently. Could it be trilobite trace fossils or just dried mud??? The squiggles are raised over the background rock. Mike