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Showing results for tags 'trace fossils'.
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Megaovoidus foveolatus (Roselt) Laaß et al. 2023
paleoflor posted a gallery image in Member Collections
From the album: Steinbruch Piesberg (Osnabrück, Germany)
Note specimen also contains Megaovoidus compactus-type oviposition scars.© T.K.T. Wolterbeek
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From the album: Steinbruch Piesberg (Osnabrück, Germany)
Note specimen also contains Megaovoidus foveolatus-type oviposition scars.© T.K.T. Wolterbeek
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From the album: Steinbruch Piesberg (Osnabrück, Germany)
Note specimen also contains Megaovoidus foveolatus-type oviposition scars in top left corner of image.© T.K.T. Wolterbeek
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Megaovoidus foveolatus (Roselt) Laaß et al. 2023
paleoflor posted a gallery image in Member Collections
From the album: Steinbruch Piesberg (Osnabrück, Germany)
© T.K.T. Wolterbeek
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From the album: Steinbruch Piesberg (Osnabrück, Germany)
© T.K.T. Wolterbeek
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Megaovoidus foveolatus (Roselt) Laaß et al. 2023
paleoflor posted a gallery image in Member Collections
From the album: Steinbruch Piesberg (Osnabrück, Germany)
Note specimen also contains Megaovoidus compactus-type oviposition scars.© T.K.T. Wolterbeek
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Collected in Woodbine, so many different traces on both sides of rocks really curious what made them, esp the 'plowing', there's a single and double plow. There's an odd tube like thing with ' inards' coming out, and lastly a really random one, single trail with piece of something stuck in it. Hopefully someone recognizes some of them.
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Strange Sandstone Cylinders Found in the Lower Permian Glorieta Sandstone, Northern New Mexico
Oxytropidoceras posted a topic in Fossil News
Lucas, S.G., DiMichele, W.A. and Karnes, J.M., Unusual Sandstone Cylinders from the Lower Permian Glorieta Sandstone, Northern New Mexico. New Mexico Geology. vol. 44, no. 3, pp. 63-75. New Mexico Geology Volume 44, Number 3 - Full Issue New Mexico Geology — Back-issues Yours, Paul H.-
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- glorieta sandstone
- new mexico
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Please help ID these Pennsylvanian Naco Formation trace fossils from central Arizona. Help Chris. @Arizona Chris Are the 1 cm wide chevron tracts in photo 3 Cruziana from trilobites? What are the 2.5 - 3 cm long teardrop shaped features in photos 1 and 2? What are the 2.5 - 3 cm long teardrop shaped features in photos 1 and 2? What are the elongated traces 3.5 to 4.5 cm long with length parallel marks in photo 4? From crustaceans?
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An enigmatic large discoidal fossil from the Pennsylvanian of County Clare, Ireland.
Oxytropidoceras posted a topic in Fossil News
Below is a delightful enigmatic fossil from Ireland in an open access paper. Maybe, someone in this forum knows where more can be found. Murray, J., MacGabhann, B.A., Doyle, E., Mángano, M.G., Tyrrell, S. and Harper, D.A., 2023. An enigmatic large discoidal fossil from the Pennsylvanian of County Clare, Ireland. Palaeoworld. Yours, Paul H.- 6 replies
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- carboniferous
- central clare group
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This Strange Ancient 'Fossil' May Not Have Been Left by Any Living Thing Carly Cassella, ScienceAlert, Nature, February 25, 2023 The open access paper is: Nolan, M.R., Walker, S.E., Selly, T., and Schiffbauer, J. 2023, Is the middle Cambrian Brooksella a hexactinellid sponge, trace fossil or pseudofossil? Peer J. Yours, Paul H.
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- brooksella
- cambrian
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Extraordinary soft-bodied fossils highlight the Cambrian explosion Derek Briggs, Yale University The Cambrian Explosion and the evolutionary origin of animals Professor Paul Smith, Oxford University Museum of Natural History What triggered the Cambrian Explosion? Professor Rachel Wood, University of Edinburgh Virtual palaeontology: bringing the first animals to life in 3D Dr Imran Rahman, Oxford University Museum of Natural History An alternative reading of the history of life using trace fossils Professor Gabriela Mángano, University of Saskatchewan, Canada Yours, Paul H.
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- cambrian explosion
- soft-bodied fossils
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I don't know if they are traces fossil or geological in nature, do you know what these spots are? The period is Late Ordovician Thanks! #1 #2 #3
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- canada
- late ordovician
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Mysterious Holes Found on the Seafloor at depth of 2,540 meters (Mid-Atlantic Ridge)
Oxytropidoceras posted a topic in Fossil News
Scientists Are Perplexed by Mysterious Holes They Keep Finding on The Ocean Floor Fiona MacDonald, Science Alert, July 29, 2022 The Case of the Mysterious Holes on the Seafloor NOAA Ocean Exploration Updates, July 27, 2022 Open access paper. Vecchione, M. and Bergstad, O.A., 2022. Numerous sublinear sets of holes in sediment on the northern Mid-Atlantic Ridge point to knowledge gaps in understanding mid-ocean ridge ecosystems. Front. Mar. Sci., 31 January 2022 Sec. Deep-Sea Environments and Ecology. https://doi.org/10.3389/fmars.2022.812915 Yours, Paul H. -
Looking for guidance on what to collect today. 1/2 - Could this be pet wood or is there decent potential for fossils in this piece? I put bit of lichen to mark some areas I found interesting (potential marine fossils?). I could leave in place, peel off another layer, pour done water on it, or move on? 3- About same size as 1st one. Multiple trackways or insect burrows? For now, Collect or leave it? 4- hmmm, burrow or stem looking, but all pointed in same direction. 5/6-Not sure, but does not look weathering. AHH SNIKIES! I think that is poison oak & of course I was using my glove as a make do scale Gotta get to the sink! Thanks!
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I was able to take another trip to the Leighton Formation today! It's been a while since I've been able to visit (months and months), but I've finally been able to. Unfortunately, during the winter the place is completely covered in snow and ice. Not really the best collecting conditions... My last trip there was in August of last year, and the spring has been very busy. Today it was time. It was supposed to be overcast with a chance of rain, but it came out sunny and bright. Absolutely beautiful day out. The collecting was very good. I unfortunately forgot to take a picture of the site. I was working in the same spot as last time, and at another outcrop a little farther down the shoreline. Place hasn't changed much, still as minuscule and weathered as ever. I had a better idea where to look though. Last time, I collected a lot, but I was mainly working in layers where the fossils were very evident. These layers contained a plethora of brachiopods, ostracods, tentaculites and other invertebrates - plus my first conodont. This time, though, I was going to try something a little different. The layers between the extremely fossiliferous layers had finer sediments, and generally seemed to keep the specimens intact better. I chose to mainly work in what I now call the "Chonetes layer". It's the only layer in these outcrops that contain Chonetes bastini brachiopods. The layer doesn't shatter as much as the other shale, so the pieces come out without a lot of cracking. It was also the same place that I found a nice trilo-bit, and I was hoping it would pay off. It did... The best finds of the day went to the trilobite cephalons. I found two Acaste cf. zerinae sp. - mostly intact, but an eye cracked off on the first, and both on the second. I was (luckily) able to find them, and I intend to glue them back on. At least the external molds are completely intact. In all of the following pictures, internal molds come first, external molds second. Cephalon #1, the one-eyed wonder. Cephalon #2 - missing both of the eyes. Sad, it would have been so nice too... Then came the pygidia - four of them! I believe that they are all the same species as the cephalons - A. zerinae - but I could be wrong. I'm sure the trilo-experts here can help me with that. Pygidium #1, the nicest one. Pygidium #2 - this little guy got a bit beat up when the rock split. Pygidium #3 - little bugger needs to be prepped a bit. Pygidium #4 - the internal mold of this cracked in half - and it's missing a piece. This one's a neat little trace fossil. It looks like an infilled burrow to me, but I'll set up a separate thread for that - with better pictures. And this very odd little guy. Another one I'll have to take better pictures on, and as soon as the matrix is pared down a bit I will scrutinize it under a microscope. It's not very evident, but it feathers out at the right end. It could be mineral staining or something, but I'm not sure yet. Then the stuff I couldn't bear to leave behind. I was trying to keep my collecting to new stuff, but some of them just sneaked in there... I feel like we've all experienced this before. Orbiculoidea sp. brachiopod. Lingula sp. brachiopod. Leiopteria rubra bivalve. It was a pretty good day. On top of these finds, I brought back some promising shale pieces to look for micro-fossils in - and a few more interesting unknowns. But that's for another time.. Thanks for reading!
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- 12
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- bivalves
- brachiopods
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Here is (hopefully) one last post to help me identify some items I found while searching through the micro matrix from a Gainesville creek that Ken @digit was nice enough take us to. Some other items have been covered in previous posts:; http://www.thefossilforum.com/index.php?/topic/119097-gainesville-shark-teeth-question/&tab=comments#comment-1305867 http://www.thefossilforum.com/index.php?/topic/114209-north-florida-fun/&tab=comments#comment-1264293 The matrix comes from a creek in Gainesville, Florida and most of the fossils are from the Miocene aged Hawthorn Formation although there is occasional younger material. The fossil fauna is dominated by shark and ray teeth but there are lots of other items including: bivalves, gastropods, crab claws, fish parts, etc. (i.e. marine). What I have below are several items that I am uncertain about and hopefully someone can confirm my suspicion or give me a better idea. Thanks in advance for all your help. Item #1 is what I assume is a fish scale. Is that correct and can it be ID'd any more specifically? Item #2 is are two very tiny beautiful ray tooth. They look different from most of the Dasyatis and Rhynchobatus that I found with a much wider root. That had me thinking Rhinobatus but I'm not really seeing the uvula that I should expect so I could be way off. Any thoughts? Item #3 are a group of fish vertebrae. The two bottom rows are two views of the same 6 vertebrae and I have no doubt they are fish. It is the one on the top that I am uncertain about as it has a totally different shape. But I'm not that familiar with all the different permutations of fish vertebrae, so it may just be a different one. It reminds me of a mammal atlas, but maybe fish atlas bones look like that too. Item #4 are some items that I really have no idea. They look like little sacs and some are broken so that one can see sediment on the interior. While there is variability, most of them have a distinctive teardrop shape. Item #5 I am guessing may be burrow casts, but I'm not sure. Do they look familiar to anyone? Item #6 also look like casts of something, I'm just not sure what. They are generally very straight sections of a smooth tube form. All of the mollusk remains I have found are internal casts so no shell material is generally preserved in this deposit. Item #7 are, I don't know. My Paleozoic brain wants to call them eroded horn corals but I obviously know that is not right. Don't have another option in mind. And lastly, item #8 are probably worm tubes, just looking to see if that is right. They also have a common shape of being U-shaped or looped. They are not attached to a shell or anything (except maybe some matrix) like I am used to seeing with worm tubes. So that is my collection of oddities. I'd appreciate any thoughts folk have. Thanks Mike
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Mid-Devonian (Archaeopteris) fossil forest in peril, Cairo, New York
Oxytropidoceras posted a topic in Fossil News
The world's oldest fossilized forest is in Greene County. It needs saving. Roger Hannigan Gilson, Times Union, Aug. 5, 2021 The world’s oldest known fossil forest has been discovered in a quarry in upper New York state By Kelly Murray, CNN, December 20, 2019 The open access paper is: Stein, W.E., Berry, C.M., Morris, J.L., Hernick, L.V., Mannolini, F., Ver Straeten, C., Landing, E., Marshall, J.E., Wellman, C.H., Beerling,D.J. and Leake, J.R., 2020. Mid-Devonian Archaeopteris roots signal revolutionary change in earliest fossil forests. Current biology, 30(3), pp.421-431. open access Yours, Paul H.- 2 replies
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- archaeopteris
- cairo
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From the album: Ichnofossils of Platteville to Decorah Formation Twin Cities
One of the largest most complete Rauffella palmipes feeder burrow fill I have ever found. I hadn't heard of any other trace fossils yet that comes close to this weird one. The invertebrate animal that leaves them makes overlapping spoon shaped burrows with one entry hole. -
Why is the difference between fossils and trace fossils important?
Daniel Fischer posted a topic in Questions & Answers
First of all I want to make it clear that I know what are trace fossils an I know the difference between fossils and trace fossils, but I feel like I am missing something. In a few posts here on the forum I saw people saying things like "this is not a fossil, maybe a trace fossil" and things like this and I do understand that regular fossils give more information but can anyone please explain to me why it seems like trace fossils are worthless compared to regular fossils? -
Trace fossil named after Univeristy of Alberta paleontologist
Oxytropidoceras posted a topic in Fossil News
Newly discovered fossil named after U of A paleontologist By Andrew Lyle, Univeristy of Alberta Research News, January 26, 2021 https://www.ualberta.ca/folio/2021/01/newly-discovered-fossil-named-after-u-of-a-paleontologist.html https://www.eurekalert.org/pub_releases/2021-01/uoa-ndf012621.php https://www.sciencedaily.com/releases/2021/01/210127093217.htm The paper is: M. Ryan King, Andrew D. La Croix, Terry A. Gates, Paul B. Anderson, Lindsay E. Zanno. Glossifungites gingrasi n. isp., a probable subaqueous insect domicile from the Cretaceous Ferron Sandstone, Utah. Journal of Paleontology, 2021; 1 DOI: 10.1017/jpa.2020.115 Yours, Paul H.-
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- cretaceous
- ferron sandstone
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Hi all So I took some pictures of some very interesting trace fossils. They are found in the upper Devonian, frasnian, Witteberg group, Swartruggens formation. Is it possible to get an identification on these?
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Found this piece on a walk near a Triassic outcrop in Pennsylvania, has a pretty exact visual similiarity to the wing rib of a Triassic reptile but is likely just some form of sedimentary trace. It would be great to get some more opinions on this piece to see if its worth holding onto or I would label it to be definitely sedimentary and rid of it, which I feel is the case.
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Took me a little while to post this trip report, I'm always a busy person. This trip is from October 3rd, 2020 in Ellsworth County, Kansas at a reservoir. The predominant formation at the site I visited is Kiowa formation; which is known for marsh and delta environments in the early Cretaceous (Albian). I found some interesting things and I'll show below. Possibly some carbonized wood materials. Lignite or coal? It was flaky and would crumble if touched. It left some black powders on my hands after handling it. I found several large pieces of them together and partly encased in concretions. Putting them together would make them about a meter and half long. Piece #1: Piece #2: Backside of #2. Notice the clutches of concretions. ...continued on the next post.
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- albian
- cretaceous
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A Visit to the Fox Hills fm. - Eastern Colorado
Brett Breakin' Rocks posted a topic in Fossil Hunting Trips
Finally ... a short trek on the open prairie of Eastern Colorado and into a slice of the Cretaceous period. This was my first true jaunt since my move from the East coast and it was a welcome change to my normal routine. My journey really began several years ago when I purchased some shark teeth from a fossil forum member in Colorado. He regularly visits a site on private land in Eastern Colorado that contains (what we think) are exposures of the Fox Hills fm. , and are chock full of marine fossils from that time period. I contacted him several weeks after I arrived, desperate to get away from civilization, and honestly just looking for someone I can chat with about geeky fossil stuff. The rolling hills of harvested wheat and corn stretched as far as the eye could see.... The exposure with the most fossil concentrations sat in a rust colored band of loose sand/sandstone. The best pockets contained shells where the teeth and bone settled. I was there without most of my usual equipment. I wasn't sifting or digging for much more than an hour before we had to leave and came home with plenty of matrix and fossils to keep me busy for several weeks. Shrimp-like trace fossils. As well as Squatina sp. and Sand Tiger Shark, Carcharias sp. teeth .. as well as small fish teeth, small fish vertebra etc. can be found. Good thing he had some small screens or all of these wonderful finds would still be on the sandy slope. Average size for these shark teeth is about 10mm. Cheers, Brett PS. I'll wash the matrix and post any additional micro-fossils here.
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- carcharias
- eastern colorado
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