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  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Found 21 results

  1. Pseudo fossil or egg?

    Hi all, see pictures below, i’m jn doubt if this is an egg or just geological. found in The Netherlands Holland, in mining area. thank you
  2. A worm or worm burrow in New Jersey?

    Hi everyone! I recently found this strange curled relief on a rock in Monmouth County NJ, due to the prevalence of burrows at this site, my guess is that this curl could be a worm (unlikely due to the whole soft tissue thing) or a worm burrow, or perhaps one of the tricks bog iron likes to play. Anyone got any ideas?
  3. Geological?

    Hello together, Something I quite often see in the ID-section are pseudofossils commented as "geological/rock". I dont want to be nitpicking, probably it´s just short for "purely geological". Simply "geological" doesn´t seem opposed to fossil, in my understanding fossils do happen at the interesection between geology and biology. So "no biologic structure"=no fossil (except chemical fossils) , but "geological" seems to apply to all the specimens (if they are not molten plastic, recent bone, or something else entirely. ) English is not my native tongue as you may have noticed, but in my understanding fossils are also rocks, at least some kinds, for example steinkern preservation, (rocks with) impressions... So it may be confusing especially for the newbies that often ask about pseudofossils if "geology" stands as the opposite of fossil. What do you think? Best Regards, J
  4. I found a drainage ravine with thousands of these these in them. I'm almost certain they're an iron concretion of some type but I've gotten several different identifications. I took a few of them to the MAPS expo last spring for an ID. One person said michelinoceras, but then an expert on cephalopods said no, definitely not, but he had also never seen anything like them. These were found on the north side of Dubuque, IA right at the top of the lower Galena dolomite just above the upper chert beds. They are in a thick sticky grey clay which sits just above a thick iron rich encrusted layer that varies from 1/4 to 1/2 inch thick (blackend hardground?). The clay layer is approximately 20' thick and contains thousands of these. They are almost all vertically oriented, cylindrical in shape, and vary from 1/2 inch to as much as 6 inches in diameter, and vary in length from several inches to several feet long. Some of the smaller ones that have weathered out do look amazingly like cephalopods. I had previously found a few pinky finger sized weathered ones farther down the ravine and thought cephalopod but then found the clay with the bigger ones. They have a center that resembles a siphuncle but I don't see anything that looks like septa or individual chambers. There are too many of these to think they haven't been found before but I can't seem to find anything describes them specifically for this area. I did find a paper from a study done in Finland titled "Ferruginous Concretions Around Root Channels and Fine Sand Deposits". That paper seems to describe what these may be be but since I've gotten a couple different ID's and none of them concretion I was hoping someone with a little more knowledge can tell me for sure. url to the research paper - https://doi.org/10.17741/bgsf/47.1-2.020
  5. Is this a fossil?

    Hi folks, I found this on Killiney Beach in Dublin, Ireland. I usually find fossiliferous limestone there full of crinoids and corals and other fragments. This caught my eye but I have no idea what it is. Any thoughts anyone? Sorry for the use of a 1 pence coin as a scale here, I just saw that using coins is not ideal but I am back in Ireland and the piece is at my home in London where I took the photos. Sylvana
  6. Is it fossil or just a rock?

    Yesterday I bought a fossil box from the local natural history museum, just for the sea urchin inside. And there is a mysterious thing inside that looks like fossil but I've never seen something like this. Maybe it's just a weird looking rock?
  7. For those interested in Ediacaran fossils, you may have seen a lot of supposed medusoids coming out of sandstones/quartzites in Namibia. They are usually labeled as unidentified medusoids, but sometimes as the enigmatic genus Namacalathus to command a higher price. At first glance, some specimens do bear resemblance to a top-down cross section of Namacalathus (such as the specimen below), however note that Namacalathus are preserved as calcite skeletons, not as molds in sandstone. A thread discussing these was posted several years ago, without a definitive conclusion. As far as I can find, there have been no published articles on these so called fossils, and perhaps rightly so. After a recent trip to the Field Museum, I am fairly confident that all of these specimens are simply the result of weathering in sandstone. Here is the specimen at the Field Museum that piqued my interest. A quick scan of our favorite auction site will reveal a number of nearly identical specimens listed as medusoid fossils. These holes are likely what are known as tafoni, defined by Wikipedia as "small (less than 1 cm (0.39 in)) to large (greater than 1 meter (3.3 ft)) cave-like features that develop in either natural or manmade, vertical to steeply sloping, exposures of granular rock (i.e., granite, sandstone) with smooth concave walls, and often round rims and openings." They have various methods of formation, but the more "Namacalathus"-looking specimens look (at least to me) to be the result of iron nodules rusting out. They may also be several tafoni that overlapped. Here is an image of tafoni in sandstone from Namibia. (image credit Wikipedia) Regardless of the exact process of formation, I am confident in saying that these are not fossils. There are plenty of other Ediacaran fossils out there for purchase, and given the high price tag these pseudofossils seem to command, I hope this post helps collectors avoid wasting money.
  8. Fossil or pseudofossil ?

    Hallo forum, this was in the craggy field where the sea was once decomposing on the limestone subsoil. It reminds me of Hibolites hastatus. What is your opinion ?
  9. Hi, I'm new here. My husband and I bought a house in the Mojave desert last spring and have found many rock treasures there over the summer. The area we're in used to have volcanic activity in addition to ocean streams. We've found huge bones, tons of petrified wood, some oddly shaped rocks, points & frequently find seashells. Initially I thought this rock might be some old Paleoindian art. It looks a lot like a tortoise except I don't believe they've had teeth for millions of years. I found some photos of old tortoises which have a strange small white row of something bony along the bottom insides of their mouths so maybe? It could be some sort of petrified extinct reptile I don't know about - maybe it was buried in ash which preserved it's details, otherwise I can't explain why there are no holes as a typical skull would have. The back and side are broken off but I'm hoping to dig around and try to find them (and maybe a body?) on our next trip to the property. I'm confident there are other missing parts as the broken back and sides look nothing like the smooth side shown. I'm willing to accept this may just be a very cool looking rock and nothing more but I think the area I found it in being known for this type of reptile, the size, the perfect placement of the eye socket, 2 dots for the nose, and lower jawline would be a pretty amazing coincidence. If you look closely there are also scales outlined along the top portion. So cool rock or maybe something more, what do we think?
  10. Hi! I’m a newbie in every sense of the word. Zero background with fossils but interest in rocks. Two days ago, while hiking Heil Ranch in Boulder, a turqouise blue glimmer caught my eye so I picked it up. When I got home I took these photos. It looks like a small egg shaped rock with a little lizard shape in it. There is even a little ridge that looks like a spine. My son says it’s just a rock, and I’m sure he’s correct, but thought I’d get confirmation from the experts. Thanks in advance for your time, and for humouring me with my silly request.
  11. Probably not an egg

    A gentleman asked for help identifying this and told me he found it near Mt. Pleasant, TX. Based off images on the internet he thought it might be a fossilized egg. He was NOT willing to break it open. I forgot to include something in the photo for scale, but it's about 5" across the long side. He's asked me to call him when I find out more information. My first thought was a geode. Members of the Dallas Paleontological Society's Facebook group said an iron or limonite concretion. What features differentiate this from a fossilized egg?
  12. Greetings! This washed up on the shores of Myrtle Beach in SC a few years ago, and I picked it up and brought it home due to its odd shape and the possibility that it may be a fossil. It kind of looks like coprolite, but then again, it may just be a pseudofossil (or maybe a different type of fossil). Anyone have an idea of what it may be?
  13. Limonite is a type of iron-rich mineral found in igneous formations. It was once used as a source of iron ore and in Delaware was mined for the purpose for two centuries. Limonite tends to form with vugs of easily-weathered minerals, including druse quartz, which leave behind gaping holes and slots. It is easy to picture skulls and other bones in these rocks, whether freshly fractured or stream-worn. This one always reminded me of a dragon skull.
  14. Fossilized Bone?

    I'm a newbie to the forum but am used to finding fossils in matrix, never like this, so help is very appreciated! I found this on Double Bluff Beach (Whidbey Island, WA), and though it looks like it could be an igneous rock (like pumice) it is heavier than most volcanic rocks would be. To me, it looks a lot like the (not fossilized) bones I have found, but it is too heavy to be a bone from recent times, which is why I was thinking it could be a fossilized bone (or maybe even wood)? Please take a look at the photos and tell me what you think, thank you in advance!
  15. I found these rocks in the Oregon Coast Range (central to north) many years ago and have always wondered whether the interesting image was a pseudofossil or an actual fossil. If it's a pseudofossil, any ideas on how it would form? If it's a fossil, what on earth is it? The image measures about 37 mm at its widest point. I'm afraid that's all I know about it; the plane of view is unknown, although the right side could be tapering down to a stem/pedicel of some sort (or not). Web searches have proven futile. (Although probably wouldn't have if I knew what it was!) Thanks for any insight you can provide!
  16. ID needed

    A colleague of mine approached me today and loaned me what he believes is a fossil that he found in the Chestnut Ridge Park area in Western New York. I didn't have the heart to tell him on the spot that it simply was not 'dinosaur meat' as he was told by someone else. So I figured I would at least try to get a definition of the structures so that I could provide something more satisfactory than 'sorry, it's a rock.' (He was really excited about his dino meat.) I personally think it is just a plate of shallow sediment that was suddenly inundated by a heavier layer of sediment. Alas, I am far from a geologist and could use some thoughts that aren't just shots in the dark. Thank you in advance, and apologies for the less-than-stellar picture, my business partner has the high quality digital this weekend, so I had to suffice with the cell phone cam. If additional pics are needed I will get them in the next few days. I also included an edited black and white image to show the contrast lines. (The image alone is not adequate, but I figured next to the color version it might help to isolate telltale structures.)
  17. Cone-In-cone concretion?

    Hi again! Here are the other two items I found (NW PA, along coast of Lake Erie) that I mentioned in my previous post: Item #1: Approx 2" x 2.5" I did some research and I think this is an example of cone-in-cone concretion maybe? Item #2: Approx 9" x 5", I liked this because it had two things going on. I think the one section is cone-in-cone concretion, not sure about the other section? Thank you for taking a look at my samples! Cari
  18. Two spongy-looking rocks

    Hi! I found a few things while kayaking along the coast the other day (Pennsylvania, on Lake Erie). They look spongy to me so I thought maybe they could be a fossil of some kind? Item #1: Approx. 2" x 3" Item #2: Approx. 3" x 4" I have two other items to post but I can't fit them here, I will put in another post Thanks! ~ Cari
  19. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since July 6, 2017. Fossil Fakes and Composites Aguirre, J. (2004). Plagiarism in Paleontology: A New Threat Within the Scientific Community. Revista Española de Micropaleontologia, 36(2). Balter, M. (2013). Authenticity of China's Fabulous Fossils Gets New Scrutiny. Science, Vol.340. Bednarik, R.G. (2013). African Eve: Hoax or Hypothesis? Advances in Anthropology, Vol.3, Number 4. Branch, G. and E.C. Scott (2013). Peking, Piltdown and Paluxy: creationist legends about paleoanthropology. Evolution: Education and Outreach, 6: 27. Corbacho, J. and C. Sendino. Fossil fakes and their recognition. Corbacho, J., C. Sendino., and M'H.Tahiri (2011). Palaeontological Fakes. Batalleria, 16. (Thanks to xonenine for finding this one!) Dawson, C. and A.S. Woodward (1913). On the Discovery of a Paleolithic Human Skull and Mandible in the Flint-Bearing Gravel Overlying the Wealden at Piltdown, Fletching.Quarterly Journal of the Geological Society, Vol. 69. (NOTE: 'Piltdown Man' was later proven to be one of the greatest hoaxes ever perpetrated in science. This article is included for historical value only.) Eriksson, M.E. and G.O. Poinar (2015). Fake it till you make it - the uncanny art of forging amber. Geology Today, Vol.31, Number 1. Espinoza, E.O., et al. (1990). A Method for Differentiating Modern from Ancient Proboscidean Ivory in Worked Objects. Current Research in the Pleistocene, Vol.7. Kosmowska-Ceranowicz, B. (2003). Amber Imitations in the Warsaw amber collection. Acta zoologica cracoviensia, 46 (suppl.-Fossil Insects). Lerosey-Aubril, R.. A fake Inca trilobite from Chile. The trilobite papers, 16. Massare, J.A. and D.R. Lomax (2014). Recognizing Composite Specimens of Jurassic Ichthyosaurs in Historical Collections. The Geological Curator, 10(1). (Note: Article begins on page 9. Thanks to doushantuo for locating this one!) Mateus, O., M. Overbeeke, and F. Rita (2008). Dinosaur Frauds, Hoaxes and "Frankensteins": How to Distinguish Fake and Genuine Vertebrate Fossils. Journal of Paleontological Techniques, Number 2. Olson, S.L. (2000). Birds-Dino Flap - Countdown to Piltdown at National Geographic. The Rise and Fall of Archaeoraptor. Backbone, Vol.13, Number 2. Raducanu, I. (2006). Actual Exigencies Concerning the Quality of Amber Pieces Commercialized in Romania. Buletinul Universitatii Petrol - Gaze din Ploiesti, Vol. LVIII, Number 2. Rowe, T., et al. (2001). The Archaeoraptor forgery. Nature, Vol.410 (brief communications). Ruffell, A., N. Majury and W.E. Brooks (2012). Geological Fakes and Frauds. Earth-Science Reviews, 111. Padian, K. (2000). Feathers, Fakes and Fossil Dealers: How the Commercial Sale of Fossils Erodes Science and Education. Palaeontologia Electronica, Vol.3, Issue 2, Editorial 2. Senter, P. and D.M. Klein (2014). Investigations of claims of late-surviving pterosaurs: the cases of Belon's, Aldrovandi's, and Cardinal Barberini's winged dragons. Palaeontologia Electronica, Vol.17, Issue 3. Senter, P. and P.D. Wilkins (2013). Investigation of a claim of a late-surviving pterosaur and exposure of a taxidemic hoax: the case of Cornelius Meyer's dragon. Palaeontologia Electronica, Vol.16, Issue 1; 6A. Stone, R. (2010). Altering the Past: China's Faked Fossils Problem. Science, Vol.330. Straus, W.L. (1954). The Great Piltdown Hoax. Science, Vol.119. Turrittin, T.H. (2006). An annotated bibliography of the Piltdown Man forgery, 1953-2005. PalArch, 1, 1. Vanlandingham, S.L. Extraordinary Examples of Deception in Peer Reviewing: Conconction of the Dorenberg Skull Hoax and Related Misconduct. Wang, X. (2013). Mortgaging the future of Chinese paleontology. PNAS, Vol.110, Number 9. Wing, O. (2009). A simulated bird gastric mill and its implications for fossil gastrolith authenticity. Fossil Record, 12(1). Zhou, Z., J.A. Clarke and F. Zhang (2002). Archaeoraptor's Better Half. Nature, Vol. 420. Zipfel, B., C. Yates and A.M. Yates (2010). A case of vertebrate fossil forgery from Madagascar. Palaeont.afr., 45, Technical Note. Pseudofossils Breton, G., M. Serrano-Sanchez and F.J. Vega (2014). Filamentous micro-organisms, inorganic inclusions and pseudo-fossils in the Miocene amber from Totolapa (Chiapas, Mexico): taphonomy and systematics. Boletin de la Sociedad Geologica Mexicana, Vol.66, Number 1. Jenkins, R.J.F., P.S. Plummer and K.C. Moriarty (1981). Late Precambrian Pseudofossils from the Flinders Ranges, South Australia. Transactions of The Royal Society of South Australia, 105. Knaust, D. and R. Hauschke (2004). Trace fossils versus pseudofossils in Lower Triassic playa deposits, Germany. Palaeogeography, Palaeoclimatology, Palaeoecoloty, 215. Queensland Museum (2011). Pseudofossils - Fact Sheet. The State of Queensland (Queensland Museum). Schopf, J.W., et al. (2010). Precambrian microbe-like pseudofossils: A promising solution to the problem. Precambrian Research, 179.
  20. Skin, Scute, Rock, Or Neither?

    About a month or so ago I found something on the side of the road by my house. I am somewhat familliar with the indigenous rocks in the area, however, I am not an expert. This "thing" that I found has layers of some sort, and in places looks like the shed skin of my leopard gecko (it's not), sandwiched between other bumpy layers. The crispy, skin like stuff seems to flake off and folds over in some places. In another area, there seems to be even rows of "pores" that are aligned perfectly. The pictures don't really do it much justice though. I wish they were better. I know that "on the road" is an odd place to find a fossil, but I walk a lot and had never seen it there before. How it got there I can not say, but I guess it adds to the mystery. Anyways, I did a little bit of research and thought it could either be a skin fossil, scute, or a bacterial mat. If anyone knnows what it is, please let me know. I won't be too heart broken if it is "just a rock". At least I'll know. Jessica
  21. Igneous Fossil?

    Igneous fossils? Yes… I know! Bear with me here. Welcome anyone’s views on this item. It belongs to a friend of mine and she’s in the States, so I haven’t been able to personally examine it (I’m in the UK). She thought might be a trilobite. Apart from the odd shape, I see heat shrinkage cracks, black glassy or crystalline material in the cracks and the typical colours of basalt weathering. So, my initial reaction was that its basaltic lava… probably pillow lava from rapid cooling as a result of molten rock meeting water. Igneous tells me it can't be a fossil so it has to be just an odd, weathered shape. The pseudo-fossil form seems to be actually a continuous part of the rock itself. This was from the Licking River region of Ohio, where my friend is finding other pseudo-fossil shapes of highly weathered basalts, but nothing quite as weird as this. Also fossilised corals (in limestone) from the Lower Devonian or Silurian. Fossils as we know them don’t generally occur in igneous rocks, apart from occasionally in volcanic tuffs… like the late Miocene petrified trees from the Yakima basalts of Southern Washington. But volcanic tuff is more or less sedimentary. It occurred to me later that there are exceptions. Igneous fossils of sorts… or moulds and casts at least... can arise from molten lava meeting something organic. Like those found in Hawaii (and also the Galapagos): http://lovingthebigisland.wordpress.com/2009/08/24/hawaiis-amazing-lava-fossils/ Fish cast in basaltic lava from Hawaii: Penguin & seal pups enrobed in basaltic lava from St. Barthalome Island, Galapagos: These are all recent… within the last 2,000 years and sometimes within the last 10 years… but surely there is no reason why ancient examples could not also exist? Most of Ohio's basalt is from the Middle Run Formation and truly ancient (ie pre anything that could be organic), but there have been volcanic intrusions in the Ordovician and again in the Devonian. So, is this just a very odd pseudo-fossil or could it conceivably be an organic cast? The morphology looks wrong for trilobite, but is there anything else that it could be? Roger