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  1. Hello, this is my first post. I recently found this rock and was wondering what these impressions might be. It was found in landscaping near Ooltewah, TN, just north of Chattanooga (the property owner gave me permission to collect it). Are these burrows or traces of something else? I found something similar here, but I didn't see an ID. As an aside, would you crack it open (or saw it), or leave it as is?
  2. Hello everyone! I've once again made a return trip out to Holden Beach, which is my first trip of 2024. I briefly showed a few of my finds on my last report, but there were a lot of really interesting finds I've found that I'd like to show off. I didn't even realize I had some of these until I was sorting them earlier this week! It was a fairly nice weekend for early February, with it being rather warm during the day, but about the usual winter cold at night. The crowds were elevated similarly to they were in December due to the coverage the beach has been getting online, but otherwise weren't too bad. As usual, the best times to go were in the late evenings and early mornings, though I did try to do some midday hunting with a couple of friends this time as well, who stopped by for a little while. The beach was covered in Peedee Formation sediment chunks from some mid and late December storms, which made for some interesting finds. These are a couple of shots of my finds as I was cleaning them off. I picked up a fair bit of modern specimens as well this trip, which I'll show a little of at the end of this. The first of my main finds is this really neat paired Exogyra costata, which is the first one I've found! I'll have to see if I can work on getting the matrix off of this one, I'm looking into air abrasion to see if I can speed up my process, and maybe make it better as well. These are some Prehepatus harrisi crab chelae I found. This is the largest haul I've found since 2022, and the first I've found since February 2023! The left middle specimen and the one in the matrix have fairly decent fingers and dactyls, which are usually broken off beyond the end of the socket. My friend found a different segment of one leg, which isn't very common. This is a fish skull fragment and a fragmented mosasaur tooth. I didn't luck out with the mosasaur teeth this trip, though my friend found a nice one fairly quickly once she started looking. I did find a decent number of shark teeth this time, which was nice! I haven't been focusing down on these the last few trips, so next family trip we'll be having in the spring I might try to look a little harder for them. This is the first vertebra of this variety I've found since 2022, right after the beach work took place. My current thoughts are that it's from the primitive ray Brachyrhizodus wichitaensis, but there is some question if it came from an angel shark. An array of turtle scute fragments, some of the largest ones I've found there. I'm not sure if there is any specific identification for these, although I've been told that a lot of them are from softshelled turtles. Some I've found from previous trips look almost like box turtles or something similar. A horse tooth fragment. My friend came back again the next weekend and found a really nice intact one. Most of my finds are similar to this quality. These are some steinkerns I found. The first picture is a bivalve of some variety, and the second one is of some partial ammonites. This is a really interesting rock or phosphate nodule that has a shark tooth embedded into it! I've never seen a tooth in matrix quite like this from the area. It's far from perfect, but a really interesting piece regardless. On to some of the Hardouinia mortonis echinoids from this trip, this one was a particularly tall and narrow specimen, which is fairly interesting. There are some really interesting variations I've found over the last couple of years, but narrow ones or tall ones like this are probably the least common variations I've found, and the fact that it is both is really neat. This is a really interesting pathology I found, on the opposite side from my last one! This one unfortunately had some damage on the anterior end from the dredging pipe, and it started falling apart once I got it home and washed, so I had to stabilize the broken area with some strong adhesive. Here are some of my favorite echinoids from this trip. I didn't total up all the ones I ended up keeping, but my grand total of lower grade specimens I've collected to donate between this trip and my December one is 322. This last specimen is a broken one, but it is really neat in the fact that it shows the void of material present in most of these echinoids. This one obviously broke differently, but in a lot of specimens that are broken from the dredging process it tends to be in this area devoid of material. There are some small Scabrotrigonia bivalve molds on the aboral surface matrix. This is a large rib bone fragment of some variety. I've always understood them to be sirenian ribs, due to their dense and heavy nature. This is probably one of my best finds from the trip, a whole but small ammonite steinkern! I misidentified it as Sphenodiscus before, but after talking with some people I'm thinking it's a much rarer scaphitid ammonite, perhaps a Discoscaphites(?). It did break while in transport, but I was able to get it back together the best I could with the loss of material surrounding the break. This is a chunk of Peedee Formation sediment with a bunch of small gastropod steinkerns throughout, as well as two sizable Scabrotrigonia bivalve molds on one side. I saw a lot of these molds this trip, but these were some of the nicer ones. And speaking of trace fossils, this is another really good find from the trip! I picked up a lot of Exogyra costata oysters, but I didn't check them all very thoroughly while out on the beach, and didn't notice this until I cleaned it at home. It appears to be a bioimmured gastropod of some variety, existing as an impression on the oyster. These are some other bioimmured mollusks on Exogyra oysters I found. One is likely some variety of Turritellidae gastropod, while the other might be a type of Cardiidae bivalve. This is some material that contains what I believe could be trace fossils of burrows, but I'm not too sure. It also resembles the shape of some branching bryozoan fossils that are common in the area. This little chunk of material contains two unusual steinkerns! I'm wondering if the cone shaped one is from a type of limpet, but as far as the gastropod one goes I have no idea what it might be. There are some odd round shapes on the surface of it that are visible much more clearly under my new UV light. I wonder if it's a type of turban snail or whelk. And lastly, this is a chunk of Late Cretaceous Peedee Formation material containing a bunch of what I've always considered to be Heteropora bryozoan fragments and Exogyra fragments. However, the most interesting part of this cluster is the presence of appears to be a Biflustra bryozoan of some variety. I've seen them in Pleistocene material quite a bit, but never in the Cretaceous stuff. The surface detail shows better in the UV light. And as a bonus, these are just some of my nicer modern mollusks and a sand dollar I collected that weekend. Holden Beach is really good for modern specimens, and I've found quite a number of them there over the years. When I eventually start an album of my finds from my travels and work on my Waccamaw Formation collection, I might try to have a side-by-side comparison of them with their modern equivalent, closest relative or direct descendant, just to show any potential appearances they might have had before becoming fossils. And that's all I've got for now! I was considering going to Texas this spring with some friends, but I realized that was going to require too much time off of work to pull off, so I'll have to pass for now. I don't have anything planned before my family trip back to Holden in April, as well as a Virginia trip in May/June, but who knows what the future has in store.
  3. This piece of limestone stone was found on top of a 8 inch thick slab of limestone on top of the Cretaceous Ferron Sandstone Member of the Mancos Shale located in Mounds Reef, Utah 5.5 miles east of Wellington, Utah just south of Highway 6. There was quite a bit of this on top of the slab. Perhaps 10 inches wide and 20 inches long. I only picked up this sample and it split off the base matrix by sliding a pocket knife blade under it. This pic shows the Ferron sandstone which it would have been on top of before it weathered out and fell a few yards downhill just to the left of this pic. No much thought went into it. I failed to even take any pics of it in situ. It looked "squiggly & fossil-ish " like burrows or tunnels so I grabbed a piece. It may end up in the cactus bed rock garden out front. Any thoughts, comments or confirmation of my ideas? Steve
  4. Found this in Colorado where I live, it is brown, the top is smooth and feels polished. There are tiny cracks and holes. They are rough inside Wanted to know what it is, thought maybe a Gastrolith? It was found in a horse pasture laying on the ground. Any help would be appreciated!
  5. bockryan

    Trace Fossil

    From the album: Fossil Collection: DC Area and Beyond

    Trace Fossil Maysville Roadcut, KY Kope, Fairview, and Bellevue Formations Ordovician
  6. Horse brain trace fossil probably from Montana
  7. bockryan

    Trace Fossil

    From the album: Fossil Collection: DC Area and Beyond

    Trace Fossil Flintstone, MD Unknown Unknown
  8. Mosasaurhunter

    Is this a crab or shrimp burrow?

    Hello, I found these in a dirt road cut and I need help identifying them. Thanks in advance.
  9. 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
  10. Lewis_

    Fossil footprint?

    Is this some sort of trace fossil/ footprint? This was in Runswick Bay Yorkshire in solid rock u wouldn’t be able to remove it kind of solid
  11. JDW

    Trace Fossil?

    Hello all, I am an amateur scientist from Southwestern Indiana and came across this interesting sandstone boulder while hiking an old surface mine area near me. I first thought it was man made but it has too many layers and definitely sandstone. Any one know more about this type of pattern? Thanks for any help.
  12. patelinho7

    Culpeper Basin Unknown

    Hello all, Quick backstory on this: I’ve been researching the Triassic Culpeper Basin of VA for a little while now. I’ve been paying more attention to various formations I see when I’m around northern VA especially after reading more about the stratigraphy of the area from old papers. I’ve taken a special interest in this red mudstone (or is it siltstone or sandstone? I don’t know the exact difference to be honest) because it’s what I’m familiar with. I participated in this program as a kid with Dr. Peter Kranz where he took us all over the DC area during a week in the summer and one spot was at a construction site in Manassas, where we looked for worm burrow ichnofossils. Talked recently with @Andúril Flame of the West about this. I had a couple small specimens from that trip with what I assumed to be the burrows/other traces so I knew roughly what rock type and structure to look for. And there’s plenty of this red rock all over NOVA. So I figured I would look at whatever red rocks I see just in case it would have something. Today I visited family in Ashburn VA and looked at some of these red mudstone-like rocks in their garden. They had gotten them from spoil piles when the community was under development to add to their garden decor. I saw sedimentary structures on many of the rocks, but this was the most clear one with something interesting going on. Just thought I’d post in case someone has insights on what it may be. Thanks! Specifically, it’s the three-pointed marking on the rock. Is it a burrow trace, or maybe drag lines? It’s not a fracture or some other damage to the surface, the consistency of the rock surface changes and is almost like the soil was disturbed over that line and hardened as-is. apologies for lack of scale, didn’t have access to tools at the time and don’t have the specimen in my possession. (Ashburn VA, Culpeper Basin-Newark Supergroup)
  13. Mosasaurhunter

    Is this a ghost shrimp/crab burrow?

    Hello, I recently found this in a Ripley formation exposure near my house. I think it is a crab or ghost shrimp burrow of some kind but I’m not sure exactly if it is or not. Any help would be appreciated, thanks.
  14. Andúril Flame of the West

    Possible Trace Fossil

    Hello all, A few months back I happened upon an intriguing rock while taking a walk in the woods. The main groove on the front of the rock struck me as a possible trace fossil (perhaps a worm burrow or a tunnel created by plant roots). I considered the possibility that it could potentially be a fossil since it was found in the Newark Supergroup of northern Virginia which is know to have some fossiliferous rocks. However, I fully expect that it is simply an artifact of weathering or that it has a geologic origin. Can any confirm whether it is a trace fossil or simply a case of weathering? I’ll tag a few members that I feel are knowledgeable on this subject: @Fossildude19 @EMP @cck @WhodamanHD I deeply appreciate all input.
  15. I officially got notice that my Belotelsonid and trace fossil cf. Protovirgularia dichotoma were accepted into collections at the Indiana State Museum!
  16. Hello people of ichnology. I'm studying a Rift basin in Brazil Northeast, related to African-American break-up of Gondwana. This unit is mostly composed of braided river deposits (coarse sandstone and conglomerate) interbedded with paleosols. Due to high deforestation of the region, this area is in being eroded and losing considerable mass, and oftenly new outcrops are formed. Considering this, I bring to you a concern for the identification of some trace fossils that appeared, in order to manage strategies to prevend it's destruction. In the left corner of this image, the person serves as scale. The scale person is standing on the studied bedding surface. This is the general view of the bedding surface. The bed is composed of fine to medium sandstone, never coarse, which indicates very low water flow. Ripple marks are seen, and the scale card indicates paleoflow direction. Also, mudcracks are abundant, which indicate seasonal climate. The dark oxidized rims and the rambling trails and tracks are interpreted to be trace fossils. The dark rims are penetrative structures with 7 to 14 cm deep, previously seen in the unit and interpreted as small scale lungfish aestivation burrows, which is in accordance with the hot and seasonally dry Jurassic climatic context for West Gondwana. The novelty of this outcrop is the appearance of a surficial multitude of tubular tracks and trails, 0.5 to 1.0 cm wide, 10 to 50 cm long, that randomly cross each other. I wonder if you guys could help me with the following questions: -> Is there an ID for the presented ichnogenera? -> Any thoughts on the possible burrow architect groups? -> Could this bedding be marked as an ichnofacies, or is this concept outdated? Thanks in advance! Att
  17. Lone Hunter

    Serpulid or Vermetidae?

    I already had 2 little piles of worm tubes then I found this larger single one today and appears the tube broke and exposed the worm. Examined the smaller ones more closely and noticed they have pyritized insides and cracks like on shell, started to wonder if they were gastropods, I see shiny spots and know the worm isn't preserved and tubes aren't shiny so doubting if they are Serpulid tubes. Also see what appears to be apeture on larger worm, so what are they? Last picture is backside of large one.
  18. SilurianSalamander

    Gastropods or tube worms?

    Found these weird spirals in this chunk of agatized rock. Devonian from Bradford beach in Milwaukee. Thanks!
  19. Sauropod19

    Mazon Creek ichnofossil?

    Hello. I found this piece during my first visit to Mazon last year and just got around to asking about it. I believe it may be tracks of some sort, as they look vaguely like other arthropod ichnofossils. I was wondering if anyone may be able to confirm my suspicions and possibly ID what kind of animal it could be. I understand this second part is difficult without anything else to go off of, and I apologize for lower camera quality than the other images I’ve seen here. Thank you!
  20. SilurianSalamander

    Paleozoic trace fossils?

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

    Trace fossil conostichus?

    Muskogee, Ok USA. Could these be conostichus or something else? I have found many in sandstone but never in shale. These were found about 20' below where I normally find the sandstone conostichus. I am including a picture of some sandstone conostichus for comparison. Would the shale ones be older since they were found in the hard blue shale 20' deeper? Thanks for your help.
  22. SilurianSalamander

    Devonian worm burrows or organ pipe coral?

    Found two of these fossils now. Both on beaches that are probably Devonian in age. One is from SW Wisconsin on Lake Michigan and the other is in the Lower peninsula of Michigan from the shores of Lake Huron. Organ pipe coral or some sort of burrow trace fossil? Thanks!
  23. Hi everyone, For a week straight I have been searching what the heck a guys trace fossil on Facebook may be... He says he found it in Bradford on Avon west Wiltshire South West England. When I google search his images I keep getting trilobites, bivalves and brachiopods come up but it really doesn't look like any of these that I have seen anywhere. In over a week he hasn't received any suggestions other then hydnoceras but again it is nothing like any I can find and doesn't seem to be of the right time period. It's really starting to annoy the Aquarian in me! Whom can't stand unanswered questions! I have attached a pic of they only 2 things that I can find that resemble the imprint left in his what appears to be sandstone or similar rock... as I don't want to use his images without his permission, I did suggest this site much to the amusement and dislike of the Facebook page admin which is quiet sad considering he has had only that 1 reply of hydnoceras. With the shark fin I have added the "spines" to give you a general idea of the overall imprint as I said it is quiet unique and I have searched for a week straight to find anything even similar to what he has. The second photo is to a similar shape and pattern etc as the fossil in question is more concave than flat. In general it looks like a croc tail imprint with a fin/sail It is wider at 1 end and tappers to a tip and has approximately 11 dots horizontally and 15 spike impressions that join up to the dots the fossil itself is approximately 8cm long by possibly 6cm wide. I know this is a long shot but it's driving me crazy Kind Regards.. The annoying Aussie
  24. Lone Hunter

    Spine like trace fossil

    Collected this in Woodbine formation, I've searched through trace fossils but haven't found a match assuming that's what it is, hope it's recognizable.
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