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Found 34 results

  1. Three years ago, I went to Peggy’s Cove to look around by the lighthouse and enter the nice shops and houses. At some point, I went around looking at the beautiful rock formations created by the glaciers that once covered Nova Scotia during the Pleistocene. I went to one of the very few erratics in the town, and checked underneath to see if I could find anything. I remember there was a cluster of pebbles and stones that were mostly cylindrical, but there were some fragments and shales there as well, however I am not entirely sure if they are endemic to the Mahone Bay / Halifax area aside from places like Little Tancook Island, which does have marine fossils on the beach cliffs dating around the time of the Late Carboniferous to Early Permian. Either way, I found a rock with a strange pattern on it. It was an oval-shaped marking with lines going up towards the edges of the shape in a diagonal pattern. It is definitely some sort of fossil impression, but I am not entirely sure what it was. I know that there are some marine fossils on the islands in the area that comprise of mostly shells, but this one looked more strange to me. I think it could be some sort of mollusk or brachiopod, like the ones that scoured the Australian seas during the Pre-Cambrian period. I unfortunately don’t have the fossil with me, so I can’t take a picture of it. If anybody thinks they know what this could be based on the description of the fossil and the geological/fossil range the place I found it is in, that would really mean a lot.
  2. This is a pretty great discovery! Quote from news article: "Scientists have found in rocks from northern China what may be the oldest fossils of a green plant ever found: tiny seaweed that carpeted areas of the seafloor 1bn years ago and were part of a primordial revolution among life on Earth." https://www.theguardian.com/science/2020/feb/24/tiny-chinese-seaweed-is-oldest-green-plant-fossil-ever-found Abstract from Nature: "Chlorophytes (representing a clade within the Viridiplantae and a sister group of the Streptophyta) probably dominated marine export bioproductivity and played a key role in facilitating ecosystem complexity before the Mesozoic diversification of phototrophic eukaryotes such as diatoms, coccolithophorans and dinoflagellates. Molecular clock and biomarker data indicate that chlorophytes diverged in the Mesoproterozoic or early Neoproterozoic, followed by their subsequent phylogenetic diversification, multicellular evolution and ecological expansion in the late Neoproterozoic and Palaeozoic. This model, however, has not been rigorously tested with palaeontological data because of the scarcity of Proterozoic chlorophyte fossils. Here we report abundant millimetre-sized, multicellular and morphologically differentiated macrofossils from rocks approximately 1,000 million years ago. These fossils are described as Proterocladus antiquus new species and are interpreted as benthic siphonocladalean chlorophytes, suggesting that chlorophytes acquired macroscopic size, multicellularity and cellular differentiation nearly a billion years ago, much earlier than previously thought." https://www.nature.com/articles/s41559-020-1122-9
  3. Fossil that is 715 to 810 million years old turns out to be fungi when chitin found in it. Important finding for early evolution. https://www.vice.com/amp/en_us/article/dyg7x7/a-wild-discovery-about-fungi-just-changed-earths-evolutionary-timeline
  4. Hi. I have heard of Precambrian stromatolites found in the Precambrian rocks of Ontario but I am curious, has there been any reports of Ediacaran or Mistaken Point- like fossils being found in the Canadian Shield of Ontario?
  5. Pre/Cambrian Collection

    I have always been quite fascinated with the early stages of development of life on Earth. My interest really picked up when I first discovered the Ediacaran biota, and who can blame me. Those creatures are so enigmatic and fascinating. I was able to pick up a few specimens, but quickly realized that my desire for fossils greatly outweighed the supply and cost of Ediacaran fossils, and I soon discovered the equally fascinating and enigmatic Lower Cambrian Chengjiang biota. I was, and still am, blown away at the quality of preservation of these soft bodied critters. A lot of specimens come very shoddily or incompletely prepared, and while it's been a steep learning curve, I feel that I'm starting to get the hang of prepping them. I've decided to start posting my latest acquisitions as these fossils are too amazing not to share. First up is Cricocosmia jinningensis, a fairly common palaeoscolecid worm from the Chengjiang biota. I have several specimens but this one is the best. It came partially prepped and I am just now satisfied with the result. You can see remnants of the gut preserved as darker regions in the center of the body. Next up is a small hash plate of Bohemiella romingeri brachiopods from the Middle Cambrian of the Czech Republic. Not my usual purchase, but I felt the specimen was too beautiful to pass up.
  6. Controversial fossils suggest life began to move 2.1 billion years ago. New Scientist, February 11, 2019 https://www.newscientist.com/article/2193557-controversial-fossils-suggest-life-began-to-move-2-1-billion-years-ago/ The paper is: Abderrazak El Albani, M. Gabriela Mangano, Luis A. Buatois, Stefan Bengtson, Armelle Riboulleau, Andrey Bekker, Kurt Konhauser, Timothy Lyons, Claire Rollion-Bard, Olabode Bankole, Stellina Gwenaelle Lekele Baghekema, Alain Meunier, Alain Trentesaux, Arnaud Mazurier, Jeremie Aubineau, Claude Laforest, Claude Fontaine, Philippe Recourt, Ernest Chi Fru, Roberto Macchiarelli, Jean Yves Reynaud, François Gauthier-Lafaye, and Donald E. Canfield, 2019, Organism motility in an oxygenated shallow-marine environment 2.1 billion years ago PNAS published ahead of print February 11, 2019 https://doi.org/10.1073/pnas.1815721116 https://www.pnas.org/content/early/2019/02/05/1815721116 Yours, Paul H.
  7. Oldest Known Animals Reported From China

    Exclusive: 600-million-year old blobs are earliest animals ever found Fossils in China suggest that that some of the first animals in existence may have been carnivorous comb jellies similar to some species that still exist today. New Scientist, January 23, 20-19 https://www.newscientist.com/article/mg24132142-700-exclusive-600-million-year-old-blobs-are-earliest-animals-ever-found/?utm_campaign=RSS|NSNS&utm_source=NSNS&utm_medium=RSS&utm_content=news An older article is: https://www.newscientist.com/article/2180053-earliest-known-animal-was-a-half-billion-year-old-underwater-blob/ Unfortunately, it is behind a paywall. It was discussed today on BBC radio. A related article is: Scientists Think Comb Jellies May Have Come Before All Other Animals Sorry, sponges—there’s a new oldest ancestor in town, Smithsonian https://www.smithsonianmag.com/smart-news/scientists-think-comb-jellies-may-have-come-all-other-animals-180962858/ https://ocean.si.edu/ocean-life/invertebrates/jellyfish-and-comb-jellies Yours, Paul H.
  8. Zumbergloverohrsreetalproxyporifer.2018online.pdf Demosponge steroid biomarker 26-methylstigmastane provides evidence for Neoproterozoic animals J. Alex Zumberge, Gordon D. Love, Paco Cárdenas , Erik A. Sperling, Sunithi Gunasekera, Megan Rohrssen, Emmanuelle Grosjean, John P. Grotzinger and Roger E. Summons Nature Ecology & Evolution 10.1038/s41559-018-0676 inherently interesting..
  9. ediacaran finds

    arrodiscoiscyphozoanaturesrep30590.pdf Ediacaran discs from South America:probable soft-bodied macrofossils unlock the paleogeography of the Clymene ocean Maria Julia Arrouy,Lucas V.Warren,Fernanda Quaglio,Daniel Poire ,Marcello Guimares Soares,Milena Boselli Rosa,Lucia E.Gomez Peral * Nature Scientific reports (6) 30590 publ.: 27-7-2016 *all diacritics omitted
  10. Some recommended Precambrian reading

    Schopf Precambrian microbe-like pseudofossils: A promising solution to the problem J. William Schopf , Anatoliy B. Kudryavtsev , Kenichiro Sugitani , Malcolm R. Walter Precambrian Research 179 (2010) 191–205 When some famous names in Pre-Phanerozoic paleontology get together,things get interesting. And these names certainly loom pretty large in that field Unreservedly recommended for those interested in "the Early Earth"
  11. Good morning everybody, For anyone interested! Mid January 2019 I’ll publish a new book (in Italian, the english version is planned in 2020, but only if I'll recover the printing and translator costs) ‘Spiagge Cambriane. Meduse e tappeti algali’ [Cambrian shorelines - Jellyfish and Algal mats]. It concerns fossil jellyfish (and cnidarian in general) and their relation with algal mats, as a principal factor of the taphonomy of these soft-bodied organisms, covering fossils lagerstätten from Precambrian to the French Oligocene. The 232 pages book is rich of inedit illustrations coming from worldwide private and public collections, wonderful dioramas and includes a nice poster resuming the paleogeography and sites where these fossils come from. The first print will be limited (250 copies). Have a sneak preview (introduction, table of contents, bibliography and index) here: https://tinyurl.com/ybh8zb3t Do not hesitate to reserve your copy in time (but without engagement). If interested, please contact me with a message. Enrico
  12. U might have split

    bentridiseghouroklolagerstafissionlagerstaCRGeo2011_article.pdf Inception and evolution of Oklo natural nuclear reactors Genese et evolution des reacteurs nucleaires fossiles d’Oklo Salah-Eddine Bentridi, Benoıt Gall , Francois Gauthier-Lafaye C. R. Geoscience 343 (2011) 738–748 This is the world's only (and oldest)known natural fission reactor.....................
  13. building blocks

    here Norio Kitadai,Shigenori Maruyama: Origins of building blocks of life: A review* Geoscience Frontiers,(9)-2018 Some prior knowledge of organic geochemistry might be helpful,but is not required for understanding this About 5,6 MB * it is what it say on the tin:a reasonably long comprehensive view of the state of the art
  14. So I've had a hankering for some Precambrian fossils. In Utah, according to this article, there is cyanobacteria fossils present in Utah. Does anybody have any examples of Cyanobacteria fossils that they'd like to show the world so I can have an idea what I'm looking for? If you know anything extra about localities or examples of the Red Pine Shale fossils and don't want to share with everybody we can PM. I'm just trying to get a feel for them before I head out. Thanks.
  15. There is a website that describes a controversial fossil found in 2003: http://www.abc.net.au/science/articles/2003/11/10/984724.htm Since it doesn't have a name at the time of publishing, I'm finding it difficult to find more information on it.
  16. As a young mineral, crystal and fossil collector, I was perusing through my uncle's 1962 copy of "Scientific American". In it was an article on recently described "Animals" of the Precambrian period. I was fascinated by the artist's abstract rendition of these critters as they may have lived. The early scientists were beguiled as was I. Naturally, collectors envision finding great things themselves and so the wanting started. Fast forward to 2016 and I find myself retired. Nearly all localities of these Precambrian sites are protected and I realize I won't be digging these fossils anytime soon. My next move was, those who cannot collect , buy. In the order of Jonesing I wanted a Dickinsonia. Then came my two Kimberella. And my last hold out was Tribrachidium. At this point any Vendian creature I get is just a plus, Jonesing is a whimsical thing that can break your piggy bank.
  17. Large and reasonably old

    VERY HIGHLY ,nay,UNRESERVEDLY recommended,3,2 Mb This is for all those who are interestested (almost said "this is dedicated to all those interested" in the earliest history of (multicellular) animals!!!!!!!!!! in Earths earliest biota... myanknollszieparamNaturellular_eukaryotes_from_the_.pdf Give it a go, because Zhu and Knoll do know their paleobiology. I would NOT be far wrong in saying that now that Martin Brasier is no longer with us, Knoll is one of the biggest names in "early earth/astrobiology".
  18. Rise of Animals, Fedonkin et al.

    I just finished reading this one. I do recommend it for the early-life nuts among us. It's chock full of eye candy, diagrams and info on everything Precambrian, not just Ediacaran though that is the focus, and into the Cambrian as well. State of the art as of 2007.. I'd like to see an updated edition if there ever is one. There is an introductory section covering everything from the universe and the origin of Earth and of life, early macroscopic fossils, the Snowball Earth and so on, then gets into the meat of the different sites (major and minor) bearing Ediacaran fossils including some of the history of the sites' discovery, and of course the thinking around what the different critters are and how they evolved. I particularly like the 'Atlas of Precambrian Metazoans' toward the back. Sample pages:
  19. The is an online Youtube video of a series of talks by well-respected sedimentologists on pre-vegetation river systems. It is quite informative series of talks about what is known and unknown concerning river systems before the advent of land vegetation. The conference is at: https://www.youtube.com/watch?v=FQ-O8YEXtjQ The text about it states: “This is a recording on the online conference on "Pre-vegetation river systems" (September 16, 2016). Talk by Jim Best, Darrel Long, Phil Fralick, Renato Almeida, Mauricio Santos, Alessandro Ielpi, Arjan Reesink, and James Syvitski” Yours, Paul H.
  20. https://www.sciencedaily.com/releases/2018/03/180312091407.htm
  21. BrainravediacarFirst(2012).pdf edit: about 3,8 Mb Notice the array of imaging techniques "Cyrogenian" is,of course,a typo Highly recommended to all those interested in early metazoan life Namibia is renowned(ever since the pioneering work of Hans Pflug)for its Neoproterozoic fossils Poriferan chemofossils had indicated the possibility of Precambrian porifera (Brasier et al/Geol.,1997):
  22. Did the First Animals Live in a World Without Oxygen? A new study suggests the answer may be yes. https://www.airspacemag.com/daily-planet/did-first-animals-live-world-without-oxygen-1-180967792/ Stolper, D.A. and Keller, C.B., 2018. A record of deep-ocean dissolved O2 from the oxidation state of iron in submarine basalts. Nature, 553, pages 323–327 Received: 10 July 2017, Accepted: 02 November 2017 Published online: 03 January 2018 https://www.nature.com/articles/nature25009 yours, Paul H.
  23. I'm sure you've all seen that banded iron tiger eye stuff from Australia: (pic from Mindat) Does anyone know with confidence anything about it - especially the age and formation name? I find various info online, some of which conflicts. Some say Archean, 2.7by, some say Early Proterozoic... and is it currently accepted as Nimingarra Formation or what? Can anyone find a stratigraphic column showing where this stuff is situated? I can't. I just want the basic info about it, but from a more trustworthy source than the usual websites that get their info from who-knows-where. I know some of you are good at finding literature on sundry subjects. I understand there are two sites in Western Australia that the stuff we find in lapidary shops/etc is likely to be from (see mindat). I don't suppose there's a way to tell which spot the piece you've got came from. If both sites are the same formation I guess it doesn't matter much. And is it stromatolitic, or just sediments containing precipitated iron/iron oxide?
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