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  1. Okay so I found this specimen at the Taughannock Falls in Ithaca New York. I found it at the edge of the gorge which consists of shale, composed of slit and clay that fell onto lime mud and hardened into rock. I've done some research and it appears to be a Brittle star trace fossil formed by their arm grazing the sand floor. Although, these Brittle Star fish traces are known as "Pteridichnites biseriatus" and they have only been discovered so far in upper Devonian shales out in western and eastern Virginia. I'm not an expert but to my knowledge the Ithaca geological formation is Devonian and was slowly covered by sand. Is it possible that the Brittle Star fish once roamed in the ancient sea now known as "Taughannock falls" today? Because a research team is trying to find this specimen and they are wondering if anyone has discovered it. Edit: Im referring to the dotted trackway. check this link out for more information. http://www.wvgs.wvnet.edu/www/news/Pteridichnites.htm
  2. Bigbadpoodle

    Indiana Identification Help?

    Hi everyone! I believe I have found trilobite (or other arthropod) tracks. Photographing was challenging. They are not the best but I believe visible enough to identify…hopefully! I found this in Crawford County, IN. Any help is appreciated!
  3. From the album: Fossil Collection: DC Area and Beyond

    Protocallianassa mortoni (burrow cast) Big Brook, NJ Mount Laurel, Navesink, and Red Bank Formations Late Cretaceous
  4. Another day of great finds in Saskatoon! This time, some trace fossils. With my wonderful collaboration with the University of Saskatchewan's Museum of Natural Sciences still continuing, recently I have been very lucky to make multiple trips out to a beautiful site just outside the city of Saskatoon where massive deposits of glacial lake silt are exposed. This silt produces pristine grass and other plant fossils in abundance (I'd like to make a post about them soon as well), but also seems to be teeming with various invertebrate trace fossils. All are very small (under 1 centimetre wide). I've attached some of my best pictures below. 1 - 6: Overlapping Planolites sp. closeups 7 - 11: Edaphichnium sp. 12 - 14: Taenidium sp. closeups 15 - 16: Taenidium sp. wide shots 17: Taenidium sp. closeup
  5. Hey gang, Going thru chucking things out of the garage piles and noticed this good sized, highly weathered chunk of bone which has some parallel grooves/marks that I'm interpreting as possible shark bites. Want to confirm that assumption and ask if that is the case, could the upper 3 somewhat parallel lines and the 2 lower lines be single bites showing 3 teeth and 2 teeth respectively? The one mark on the upper left seems to be slightly curved so would that be consistent with a different angle/different shaped tooth position? Just wondering what you all think? Regards, Chris
  6. Hi everyone. I was up in northwest Pennsylvania a few days ago seeing some friends and found this wild thing on their property. It's not my usual hunting grounds and I wasn't particularly looking for fossils at the time, so I never bothered to do research on the area. What I can tell you is that it was found in northern Crawford County, PA, which I believe is Devonian (but may also be Mississippian). Nearby were some brachiopods in sandstone. If extra pictures are needed, just let me know. Please help!
  7. Rockwood

    Trace fossil ?

    Found on a spoil pile in the Mazonia wildlife management area, northern Illinois. I've found a couple other cool trace fossils in the area. Is this one ?
  8. Rockwood

    Trace too

    Here's another trace, pretty sure at least, found nearby. There were several other pieces with the meniscate shapes in them, but this one seemed to be most informative.
  9. SilurianSalamander

    What kind of burrows are these?

    I found these burrows in Ordovician-Silurian rocks in Waukesha Wisconsin. I found hundreds of these just a few weeks ago in Green Bay WI (Ordovician) any way to identify what animal made these burrows? Thanks! ps: so sorry I forgot the scale
  10. Pnwmedic

    How do I preserve this?

    I believe I found some trace worm burrows in clay… Lincoln Creek Formation in WA. unfortunately the dried clay makes it very unstable, some of the burrows are filled in with harder matrix. I’m not sure what to do… any advice would be great!
  11. Found in little creek around town, late Ordovician period in Southern Ontario, absolutely stumped on what it is. Any ideas are welcome, thanks in advance! Sorry for the low quality photos, these are the best I could get, fossil is 1cm (Long) with little groves.
  12. Rockwood

    Double burrow

    This little piece is from the spoil piles of the Chesapeake + Delaware canal. I saved it as a trace fossil, but thought it was odd looking. Is this actually small burrows within a larger burrow ?
  13. SilurianSalamander

    Paleozoic trace fossils?

    Sorry for lack of scale! Cambrian-Devonian rocks here. Found in the side of a building.
  14. Fossil_Adult

    Maryland Triassic Trace Fossils

    Yesterday I set out to a site that exposed the Gettysburg formation up in Maryland in hopes of finding some Triassic footprints. What I came back with was mostly some trace fossils and burrows, but some of these looked suspiciously like tracks, so I wanted to post them on ID and see if someone with a little more experience could help me out. I’ll also probably send some emails out in hopes of getting someone who’s more experienced with the Triassic formations around PA and Maryland. Anyways here are the potential trackways I really hope to get some light shed on these and learn more about this era around Maryland because I’ve been doing a lot of research on these. Some really cool burrows: I collected the Triassic burrows in case my potential footprints turned out to be duds so that I wouldn’t come back completely empty handed. These are really cool I’ve come to believe that the small holes are where bugs or Beatles must have lived inside them. Someone with a little more expertise could chime in though. Now here’s the potential trackways. As always, these are some of my favorite fossils to collect so I REALLY want them to be trackways. But if they turn out not to be, then I will keep searching. I’ve got more leads further away in Pennsylvania but it’d just be nice to find them in Maryland where they’re so few and far between to find up there. These look fairly suspicious so I’ll see what y’all think of these. This one looks like a small theropod print, the way the traces are done. potential trackway circled. This one is also suspicious. There’s no discernible trackway to spot here, as this could just be geologic and be an inclusion in the rock, however, it could very well also be a trackway. Whether these are dinosaur trackways, or just fossil blobs that are getting me excited, I can’t help but be in awe at this site. Anytime I go to any potential trackway site, I just imagine all the small dinosaurs, early mammals, and large amphibians dominating this once river plain, leaving behind their footprints in the mud to be found. Were they running towards some unsuspecting prey item? Were they running away from something? Or just having a leisurely stroll during this time period? I don’t know what fascinates me so much about trackways but I always feel they have a story to tell about them.
  15. Lucid_Bot

    What is this stuff?

    One of my local spots to fossil hunt has a lot of limestone (I think) with what looks like worms running through it. I see this stuff everywhere and have no idea what it is. The area is definitely Glenshaw Formation and has fossiliferous limestone and shale. Any help is appreciated.
  16. Please could someone help in answering whether or not the attached images is a fossil of some kind. This was found on a beach near the Lake District while I was away for a few days and it had caught my eye , looked somewhat intriguing. If someone could help in proving me an answer that would be great. Much appreciated.
  17. rocket

    trace fossil Cenomanian

    long time ago I found an interesting trace-fossil, like a burial wide is approx. 20 mm maximum, lenght approx. 60 mm. 3-dimensional, chalk, lower cenomanian, Teutoburger Wald-Region I have no clear idea what it is,, the animal causes the trace seems to have many short legs Worm? Crab? I show a close-up and the complete one, perhaps someone can help, thanks
  18. Reptile tracks dating from 251 MYA from the early Triassic were stolen around 2017/2018 from Capitol Reef National Park, but only recently noticed. Hopefully the perpetrators will be found and the fossils recovered. https://www.nps.gov/orgs/1563/care-rfi-05102022.htm
  19. Edward Engelbrecht

    Indiana Trace Fossils

    Years ago I picked up these fossils in southern Indiana. I began looking them over again recently. I'll explain what I understand about them. Matrix: Ironstone concretions Classified: Carboniferous? Location: Millsport, Jackson County, IN; Muscatatuck River bed I found these fossils below the Rte. 135 bridge over the Muscatatuck River, which runs at the base of a large hill south of the river. As I recall, the rockface of the hill is gray shale. I believe the concretions are washing out of the shale and tumbling into the river. The river runs on or near the ends of glacier worn plains. The glaciers less affected the hilly region to the south. Here is the fossil trace that has always confused me: In the same matrix occurs the following bivalves of various sizes: I've added three pictures of the large bivalve because it is unusually tall compared to most bivalves I've seen. There are fine ribs running from the dorsal to the ventral ends. The concentric ribs are like large wrinkles. Within the concretion that held the large bivalve, I found mirror images of a flattened tube shape. The mirrored look reminds me of plant fossils in Carboniferous rock closer to Terre Haute, IN. I'm grateful for any suggestions or references. Thank you.
  20. Mark Kmiecik

    Mazon Creek specimens for ID

    I have six more MC specimens that I need help with identifying. Again, down to species level if possible. The only one I'm fairly sure of is the Coprolite.
  21. Rockwood

    Thalassinoides ?

    Found these trace fossils while out hunting with Lone Hunter. Eagle Ford formation I think. It looks like goldilocks and the three bears. Other exposures show that the holes are connected in a curving maze. Thallisanoides ? Was there shrinkage ? How did this happen ? By the way some of them had another smaller scaled trace within them.
  22. ichnologyfan

    Navajo Sandstone trace fossil?

    I saw this potential fossil in the Jurassic age Navajo Sandstone in Zion National Park in Utah. I'm sorry that there is only one picture with no scale. I was hurrying down the precarious Angel's Landing trail with a long line of people behind me, so I only had time for a quick picture. The feature is probably about ~12 inches long, and I believe that it is situated on the plane of a cross-bed in a dune structure (example of the cross-bedded sandstone is also pictured). This feature might just be some sort of iron precipitation, but it looked so similar to an invertebrate trace fossil that I am not sure. Any thoughts on what it could be?
  23. wyldewastelander

    Blue Beach, Nova Scotia - Trace?

    Loose on the cobble at Blue Beach, Nova Scotia. I believe this is a trace fossil. Just wondering if anyone can recommend some resources on how to interpret trace fossils? Thanks for your help with this.
  24. historianmichael

    Trace Fossil ID

    A little over a month ago my dad and I checked out two exposure of the Mifflintown Formation (Late Silurian) in Western PA. While the sites are known mostly for their brachiopods, we ended up finding a couple of other fossils, including several Favosites niaragensis, Hormotoma, and some trace fossils. While I would normally leave the trace fossils alone, I was really awed by the size and appearance of the burrows. I love the bumpiness of the burrows and randomness of their direction. They are almost a work of art. So I decided to take one home. I am not very good at identifying trace fossils though. Are these Planolites?
  25. I found these Rhynchosauroides trace fossil trackways well-defined in the Triassic red bed sedimentary deposits in the Newark Basin in southeastern Pennsylvania. Lincoln cent shows scale.
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