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  1. 500 million-year-old fossil is the granddaddy of all cephalopods By Laura Geggel, Live Science, March 29, 2021 Cephalopods: Older Than was thought? Press Release No. 24/2021, Heidelberg University, March 23, 2021 The open access paper is: Hildenbrand, A., Austermann, G., Fuchs, D., Bengtson, P. and Stinnesbeck, W., 2021. A potential cephalopod from the early Cambrian of eastern Newfoundland, Canada. Communications Biology, 4(1), pp.1-11. open access Yours, Paul H.
  2. Hello, everyone, these fossils were collected from the basal Cambrian in South China, all of which are organic. But I do not know what are they? Does anyone can identify them. Please see the attachments! Many thanks.
  3. This small fossil is from Chengjiang and was labelled as "Anomalocaris mouth" by seller. He's been wrong before and I'm rather skeptical about that interpretation. Any ideas, anyone?
  4. paleo.nath

    Cambrian mystery fossil?

    I ordered this plate of trilobites a while back and just recently noticed something peculiar on the side of the rock, i’m pretty sure this is not a trilobite but it still looks somewhat organic, but i’ve got nothing. Any ideas!
  5. historianmichael

    Georgia Cambrian Mystery Trilobite

    When splitting some extra matrix from the Tibbs Bridge Road exposure of the Middle Cambrian Conasauga Formation I came across this trilobite cephalon imprint. It does not seem to match any of the common trilobites found at the site and I could not find a similar example in the various trip reports other members have posted about past visits to the site. Any help is greatly appreciated. Thank you!
  6. TNCollector

    Cambrian Stromatolite

    Got the itch to collect and study some stromatolites, so I did some searching and feel that I successfully scratched the itch. I found a section of the Cambrian Copper Ridge dolomite that exposes a plethora of stromatolites of various morphologies. Many of them look as if they are straight out of Shark Bay in Australia, with the characteristic domal structure attached to a thinner holdfast on a hard substrate. Stromatolites are formed over a long period of time in tidal zones by colonies of photosynthetic bacteria and/or algae that form sticky layers that trap sediments and concrete them into
  7. Literature: YANISHEVSKY, M (1926). "On the remains of the tubular worms from the Cambrian blue clays". Ezhegodnik Russkogo Paleontologicheskogo Obchestva. 4: 99–112. Korkutis, V. A. 1966. Tubicolous Worms of the Lower Cambrian of the South of the East Baltic territory. Palaeontology and stratigraphy of the Baltic and the Byelorussia. Number I (VI), pp. 7-29. Małgorzata Moczydłowska, Frances Westall, Frédéric Foucher (2014). Microstructure and Biogeochemistry of the Organically Preserved Ediacaran Metazoan Sabellidites. J. of Paleontology, 88(2):224-239 (2014).
  8. While visiting family in Arizona and California I was able to figure out where the Marble Mountains trilobite quarry was located. It's not that far off the road system so I figured I'd give it a look see on my drive from central Arizona to Northern California. The location is only about 25 miles out of my way so why not. On my drive north I only had a few hours so this stop was mostly a fact finding trip. The view from the car windshield. The Marble Mountains are the lower hills to the left of center. The quarry area is just to the left of the gap between hills
  9. Hello All. I am curious as to the groups assessment as to the authenticity of this Acadoparadoxides specimen from Morocco. It measures roughly 13 inches in length (the fossil itself). I see restoration of the right eye (as in right side of the photo) and right portions of the glabella, but beyond that am fairly hopeful/comfortable that the specimen is authentic. It is interesting that an upper thoracic segment is missing, but I am thinking this could be taphonomic or that segment was lost when the rock split. Anyway, I value any thoughts and input. I'm happy to share more photos as well.
  10. Fossilizable

    Cambrian puzzler

    While out on a trilobite hunt several years ago in the Marble Mountains, San Bernardino Cty, CA, I found these two pieces on the surface in the region of a Latham shale exposure, so I think they would have belonged to the Chambless shale, which is in fact exposed as a bluff above the surface. Here's one: Here's the other: I'm not sure about these. They might not even be organic or in the same genus if organic. The source field might be a zone with Chambless and Zabriskie quartzite mixed. So there's a chance they're inorganic, I guess. How
  11. Jasperfossils

    Jince

    Does somebody know if the Jince quarry is still open? Greetings, Jasper
  12. oilshale

    Gangtoucunia aspera Luo and Hu 1999

    Gangtoucunia, a member of the Guanshan fauna, is a genus of worm-like creatures, assigned to the archaeopriapulids on insecure grounds. References: Luo H L, Hu S X, Chen L Z, et al. Early Cambrian Chengjiang Fauna from Kunming Region, China (in Chinese with English summary). Kunming: Yunnan Science and Technology Press, 1999. 129 S. X. HU, M. Y. Zhu, M. Steiner, H. L. Luo, F. C. Zhao and Q. Liu. 2010. Biodiversity and taphonomy of the Early Cambrian Guanshan biota, eastern Yunnan. Science China Earth Sciences 53(12):1765-1773 H.-L. Luo, L. Yong, S.-X. Hu, X.-P. Fu,
  13. Wonderful_Life

    Are these fossils?

    I recently took a trip up to a few localities of the Murray Shale of Blount County, Tennessee, which contains fossils of the early Cambrian period. I looked around in some of the loose shale on the ground to see if I could find a small brachiopod or hyolith (both of which are common to this locality). This was my first time going out and looking to see if I could find a fossil on my own. I took a few pictures of what I thought could possibly be fossiliferous material of some sort, but ultimately could not determine if what I found was indeed fossiliferous. Most of what I saw appeared to be fos
  14. Cynic

    I want to define fossil

    The fossil was found near the Mukhavets River, Belarus, Brest. Length ~ 6-7cm (~ 2.5 inch) whole piece. If I registered here, I will be impudent: you can recommend a book (100 -200 pages), an introductory course in fossils.
  15. paleo.nath

    Nevada Trilobite ID

    I’ve recently bought these trilobites from the Chisholm shale in Nevada, and I was looking for an ID on the two of them. They are Cambrian in age, and more specifically from Lincoln County.
  16. The trace is in the form of a thin, smooth arc, loosely twisted into a right-hand spiral. Literature: Ivantsov, A.Yu., Gritsenko, V. P.; Paliy, V. M., Velikanov, V.A., Konstantinenko, L. I., Menasova, A. Sh., Fedonkin, M. A., Zakrevskaya, M. A. and Serezhnikova, E.A., 2015. Upper Vendian macrofossils of Eastern Europe, Middle Dniester area and Volhynia. PIN, RAS, 144 (in Russian)
  17. Leptomitus teretiusculus is a moderately common, thin-walled sponge species. Specimens range up to 11cm long and about 1,2cm wide. Literature: J. Y. Chen, X. G. Hou, and H. Z. Lu. 1989. Lower Cambrian leptomitids (Demospongea), Chengjiang, Yunnan. Acta Palaeontologica Sinica 28(1):17-30
  18. Hi All, It's been awhile since I've posted here, but I've kept up my interest in fossils! I'm currently working on finishing my Ph.D. up here in Ohio (wildlife conservation) but am shifting my focus to outreach and education endeavors mostly. I currently host a wildlife-oriented YouTube channel but am interested in doing a series on fossils and paleontology in the future (either on our current channel or on a different one). My idea is to do a six-part series on the Paleozoic that starts with the Cambrian and works through the Permian. In each episode, I would visit a well-known (i
  19. BentonlWalters

    Walcott Quarry Vauxia gracilenta

    Six years ago I got the chance to visit the Walcott Quarry (see my longer post on this adventure in fossil trips) and while there I found this specimen of Vauxia gracilenta. Ever since I've wanted to make it part of my collection somehow, so this year for my birthday I decided to have a life reconstruction commissioned. Having seen the other fantastically detailed Cambrian models produced by @thorst, I asked him if he would be willing to reconstruct and 3D print the sponge. I drew an interpretation of the fossil and in no time he had it completed. A huge thank you for
  20. Bizarre sea beast with a circular mouth full of serrated teeth sparked a 'prehistoric arms race' 500 million years ago Michael Havis and ShivaliBest, MailOnline, Dec. 13, 2020 The paper is: Paterson, J.R., Edgecombe, G.D. and García-Bellido, D.C., 2020. Disparate compound eyes of Cambrian radiodonts reveal their developmental growth mode and diverse visual ecology. Science advances, 6(49), p.eabc6721. Abstract of open access paper PDF version of paper Yours, Paul H.
  21. spinoking27

    Nectocaris Diorama

    finally got to work on an extinct animal from the Cambrian like it was resurrected from its grave is nectocaris made a 3D Print for it Nectocaris Model on thingiverse
  22. paleo.nath

    Nevada trilobite ID help

    This trilobite was found in Lincoln county, Nevada and I am having trouble identifying the species, any ideas? Its about an inch wide at the cephalon
  23. thorst

    Pikaia vignette

    Hi, here is probably my last (physical) model of this year: A small vignette in life scale depicting two Pikaia gracilens swimming along three small Hazelia delicatula sponges. This scene could have happened about 520 million years ago in the Cambrian. The parts are again printed from clear resin on an Anycubic Photon Mono X at 50µm resolution. Each Pikaia consists of two parts, which allows to print the inner organs and the segmented (muscular?) structure on the inside while keeping the outside smooth. If you want to print your own, I have uplo
  24. thorst

    Kylinxia zhangi

    Hi, it's time for the next 3d-printed animal from the Cambrian: Kylinxia zhangi. It was described only about a month ago (https://www.nature.com/articles/s41586-020-2883-7) and features Anomalocaris-like frontal appendages and Opabinia-like eyes on an early arthropod body. The model in 1:1 scale is only about 6cm long. The legs, while considerable thickened to allow printing, are still only about 1/3rd of a millimetre in diameter. It was printed on an Anycubic Photon Mono X at a resolution of 50µm from transparent resin and painted using an airbrush with highly thinned paint, such
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