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Showing results for tags 'cambrian'.
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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.
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I am putting together some educational displays and I am need of an example of a Cambrian age Pelecypod and Gastropod. Thank You
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I'm looking for the following paper: Q. Liu, H.L. Luo, L.Z. Chen and S.-X. Hu. 2006. Panlongia, a new trilobitomorph genus from the Lower Cambrian, Kunming, Yunnan. Acta Palaeontologica Sinica 45:384-392 My university has access to a lot of journals, but not Acta Palaeontologica Sinica unfortunately. If anyone has a copy or can point me in the right direction, it'd be much appreciated.
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Howdy! I have a neat puzzle for the experts today! I know that rostrochonchia are not super easy to find... so I submit the follow picture. Most of the "shelled" creatures I unearth are brachiopods; cincinnetina meeki, Lepidocyclus, Rafinesquina...etc... HOWEVER! this specimen is unique to my collection. Found in northern Cincinnati - Upper Ordovician - The pronounced ridges are different than anything else found. Posted to an Ohio Fossil group, someone with a keen eye made the possibility of Rostroconchia. From my understanding these are not found often. Looking for help in identification. I do not have the tools at hand to remove anymore of the matrix without damage to the remaining fossils in the hash plate... (I have a dremel tools and dental pics...I'm lame) which are neat too. Rostrochonchia or Plaesiomys subquadratus (I compared to these specimens I had) As always, looking for education and conversation.
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Fuxianhuia protensa life restoration created and copyrighted by Nobu Tamura, licensed under the Creative Commons Attribution-Share Alike 4.0 International (Wikimedia Commons): References: Hou X.-G. (1987). Three new large arthropods from Lower Cambrian Chengjiang, eastern Yunnan. Acta Palaeontologica Sinica 26, 272–285. Bergström, J., Hou, X., Zhang, X., Liu, Y. & Clausen, S. (2008). A new view of the Cambrian arthropod Fuxianhuia. GFF, Vol. 130 (Pt. 4, December), pp. 189–201. Stockholm. ISSN 1103-5897.
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While rockhounding in the area of the Niagara Penninsula, I found an odd-shaped piece of metal about 5 inches beneath very thick, wet mud. The place in which I found the object was in a very shallow stream, which ran over sedimentary rock of the pre-Cambrian shield. After a closer inspection at home, I believe I may have found an iron-mineralized piece of a petrified wood, intertwined with two separate vines. A friend suggested it may be a rusty drill bit although I have doubts based on the location it was found. It is 3 1/2" long and 3/4" wide. It is heavy and seems hard like a metal. It is somewhat magnetic. It appears mostly brown, with spots of orange, and some light brown mud residue. I am assuming the vibrant orange colour is rust although there are also pale-orange spots which resemble the interior of a stick. Before cleaning the specimen, I would appreciate any opinions/advice. I am only able to attach two photos, but I will upload the rest in the response section. Any help is much appreciated!
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Last week, I made some incredible trips with my kids to the middle Cambrian U-Dig site, the Fossil Lake lagerstatte in Wyoming, and a muddy, rained-out attempt at the Late Cretaceous in Colorado. This was our first time visiting all of these sites - such amazing times! Here are some pics starting with Utah. My best find, a triple carcass Elrathia kingii Fossil Lake, first started splitting slabs in the Green River formation. This is where we were working. A large plate with three Knightias and a Diplomystus. Later we cut the plate down so could transport home. 18 Inch Layer: My son made the best discoveries at the 18 Inch Layer: a fly and a bee Bee under magnification. Incredible preservation detail! Some fish under scope We made it to the Cretaceous locality but it began raining. You can see the storm clouds approaching on the left. The roads were too muddy to continue and we were running out of time as we had a plane to catch unfortunately...another time perhaps! A beautiful drive. When we returned home it appeared the TSA searched my checked luggage! Luckily nothing was missing or destroyed. Thanks for reading.
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Cool new trilobite species described from Australia, Redlichia rex https://phys.org/news/2019-06-king-fossils-kangaroo-island.html
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Hi all, i'm buying that trilobite but i'm not expert in cambrian morocco trilos. That one seem real with no restoration but i'm not sure. Also not sure about species. Can you help me? Thanks
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I acquired this enigmatic creature a while back and just rediscovered it in storage. It was found in the Heilinpu Fm, Kunming, Yunnan Province, China (Lower Cambrian, same age as the Chengjiang fauna). I have seen a few similar creatures offered from the same locality from a few sellers. It has been alternately labeled as either a cnidarian or ctenophoran. However, I've looked through a few dozen papers about cnidarians/ctenaphorans from Chengjiang and have found no similar specimens. Has anyone seen these before?
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Hey TFF Members! I was able to do something very different from the normal Florida fossil hunting the other day. On the way up to Michigan for my Mother's wedding I stopped in Northern GA to hunt for Trilobites! I was saying the age wrong throughout the video, I thought they were Devonian. But turns out they are actually Camrian... even better! Hope you can check out the video when you get a chance. I had an amazing time doing this!
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Short visit (1-2 hours) to famous locality near Las Vegas. I wish we would do better home work because some interesting trace fossils were identified only after we watched the video recordings. Perhaps, our "movie" will help you not to miss them when you will visit this unique place. It was a family Christmas trip, by the way. Also, if you know the species, please help with ID.
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Here are some color pencil sketches of some Paleozoic agnathans I drew many years ago (maybe 6 or 7 years ago). Time is scarce, but seeing these again I somehow feel inclined to start sketching some new concepts again Polybranchiaspis yunannensis (Galeaspida) Early Devonian Qujing, Yunnan, China Haikouella lanceolata (Agnatha, Haikouellidae) Early Cambrian Chengjiang, Yunnan, China Stensiopelta pustulosa (Cephalaspida) Early Devonian Ternopil, Ukraine Pteraspis (Pteraspiformes) Early Devonian Ternopil, Ukraine
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Large morrocan trilobite, real?
John525 posted a topic in Is It Real? How to Recognize Fossil Fabrications
I recently bought this large trilobite fossil at a rock/fossil shop in Texas. After doing research I found that their are apparently Alot of fakes out there. The fossil itself has the same grainy mineral characteristics as the rock surrounding it when a flashlight is shined on it. The tiny sandy mineral deposits sparkle. I did a small bite test that an article I read suggested to do and it did not feel like resin. It was very gritty and the same texture as the rock that surrounds the fossil. Please help me if you can. Sorry it is only 1 picture. It wouldn't let me upload any more.
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This is an incredibly rare and colorful Chinese trilobite, and the crown jewel of my collection.
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Lit.: Wang, Xiao-feng; Jin, Yu-qin[Eds]. [Paleontological Handbook of central and southern China. pt. 1. Early Palaeozoic Era.], Earth Sciences Press, Peking, 1977: 1-470, 116 pls.. Chapter pagination: 104-266, pls.33-81.
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From the album: Invertebrates
Sinosaukia distincta Zhou, 1977 Late Cambrian Sandu Formation Guole Guangxi PRC -
Today, I decided to stop and see what @MeargleSchmeargl left behind at the Conasauga River trilobite location. I do like collecting at this Cambrian site. It is not a matter of finding trilobites, it is deciding which pieces you want to keep. I only spent about 1 hour there and did not collect any matrix, I just felt like splitting some pieces and finding a few trilobites. Nothing special was found and they we’re all Aphelaspis brachyphasis. As stated in @MeargleSchmeargl post, the River was low and the matrix was dry, thus making it very easy to split. I have only seen the River lower than today on one other occasion. When it is low, it is easier to maneuver and find a place to get comfortable. Here are my finds from today- this is the least amount of trilobites that I have found, but it because it was just a quick stop and I was taking my time. Here is my favorite find of the day- Here are some others-
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I purchased this trilobite fossil a while back. It was sold as Yinites sp. from the Early Cambrian Hongjingshao formation in China. I tried to both verify the genus and close in a species, but have been unable to do so. All the references to Yinites that I could find were old (circa 1940’s), and therefore I wasn’t able to find any actual literature online. Does anyone have any ideas?
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References: Zhu et al. (2016) Furongian (upper Cambrian) Guole Konservat-Lagerstätte from South China. ACTA GEOLOGICA SINICA (English Edition) Vol. 90 No. 1 pp.801–840
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Many years ago I found this trilobite on Marble Mountain in California. It is roughly 1 cm across at it's narrowest and 2cm acrossat it's widest.. It is probably cambrian age without much detail preserved. I am unsure of what layer it came from exactly, as it was found loose as is. Any general ideas would be appreciated.
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So I found this little dude sitting pretty as could be in a rock pile up in Grand Isle Vermont. I am new to fossils and haven't learned about all the critters in my area yet. I think it's head armor? The area is dated to the mid Cambrian and the matrix is black shale. You can even see one little flipper thing on the left. (don't laugh at me I'm new! lol) So what is it?
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From the album: Trilobites
Redlichia mansuyi (Reese & Endo, 1937) Cambrian Chengjiang biota, Yannan Province, China -
From the album: Trilobites
Palaeolenus lantenoisi (Mansuyi 1912) Chengjiang Biota, Yunnan Province, China -
I was on a hike on top of a hill (about 700 feet in elevation) in Chino Hills (roughly 50 miles inland from the Southern California coast line) and I picked up a few loose sedimentary slabs and looked under them. I found this clear fossil of a seashell. I’m wondering how old it could be? What period was a sea covering Southern California and this high up from sea level?
