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Found 46 results

  1. Seller's Mazon IDs

    Can anyone tell me whether this seller has these IDs right? I figured the first one looks like an Achistrum (sea cucumber) to me. The seller has others that I have questions about too but won't post them all. @RCFossils ?
  2. Wenlock Weirdies.

    Hello, everybody! I have been sorting through my wenlock limestone material, Middle Silurian and have a couple of personal problematica. I am wondering if any of you brilliant folks could help me out. Here is an object which seems to be an epibiont on a Favosites coral. 5 mm long and about 1.5 mm diameter at the widest. Is it a cornulitid ? Or a single corallite of Aulopora? Something else, maybe? And another one? On a solitary rugose coral. 3 mm x 1 mm. And an example of Aulopora from Wiki to compare : And a cornulitid that looks a bit similar : I would be very grateful for any help. Then there is this. Is it the worm Keilorites? Length 1.9 cm, width 2.5 mm max.
  3. Small wormlike fossils in hard mineral

    I'm still brand new here, and hoping that help from the ID posts will get me moving in the right direction. We have so many fossils here in Cincinnati and the outlying regions.. Thank you for helping!
  4. Possible Ordovician worm?

    I found this in the layers well above the trilobite bed at the Beecher's Bed Quarry in NY. It appears to be a segmented worm. I welcome opinions. Its about 5 cm long and 2 mm wide. The photos of the ends are taken through a microscope.
  5. 2 ID's

    Found these in eastern NC.
  6. Worm trace?

    All-- On top of the ridge where we have built a home in the Missouri Ozarks, near Rockbridge, about 26 miles north of the Arkansas border, there are many, many fossils. Coral abounds. (Even I can identify coral.) There is a lot of other stuff, too. Here is a sample of that other stuff. I think it is a worm trace (is that the correct nomenclature?). If you have a moment, tell me what you think. It was found 300 feet about the level of a river. It was at some depth between 0 and 10 feet, doubtless closer to the 0 number than the 10 foot number. I discovered it on May 7, 2017. (Maybe I should make another GUESS just to be safe(r)!) Thanks. --Bill
  7. Trace fossil of???

    Trilobite or worm trail? Or something else? Found near red river gorge in Kentucky. Size: 5" x 3.5" x .5"
  8. What part of this is a worm?

    Hello TFF. Sorry if this is a dumb question but I'm a newbie and I think I should know as much about my fossils as I can. I have a little mazon creek worm, but I can't tell what part is the worm. Is it the white part?
  9. Flat worm? Tully monster?

    A nice old gentleman gave me a bag of fossils he gathered at Mazon Creek many moons ago. Unfortunately he didn’t bother identifying most of them or even double checking that the rocks actually contained fossils at all. So I’m left to sift through them and figure all that out. Here’s one I’m having trouble with: Now, don’t any of you be getting my hopes up by saying that it’s part of a tully monster, lol.
  10. Mazon Help - Number ten: worm

    Sorry, so small and dark it was difficult to photograph. Worm of some sort?
  11. Mazon Help - Number three: worm?

    Worm? Possibly Paucijaculum samamithion?
  12. Mazon Help - Number two: worm?

    Worm? Possibly Esconites Zelus or Achistrum?
  13. Another Burgess critter - chaetognath

    Not sure if anyone has posted a link to this already... a bit old, too (last Aug.) but new to me: https://phys.org/news/2017-08-scientists-id-tiny-prehistoric-sea.html#nRlv
  14. Petwood with worm and fossil poop?

    Hi, I was wondering if anyone could help me identify these strange fossils I found in the atacama desert in South America. I believe 2 of them are seeds of some sort, and petrified wood with what looks to be a worm, and also a weird poo looking chunk. any thoughts? Thanks The seeds? petrified wood with worm? petrified poo
  15. Clam and worm ID

    I found this clam a while back. The one side was pretty clean, but the other side and top were covered with something like mudstone. So I set about cleaning it up a little. I'm an amature wanna be so I didn't do that great of a job, but as I was cleaning off the mudstone like stuff I uncovered at least 3 other critters. I broke the fragile shell of creature # 2 attached to the top, before I realized it was another shell. I thought it was shell fragment in the mudstone. I uncovered creature # 3 a very tiny worm about 1 mm in diameter and maybe 2 cm long. I also uncovered creature # 4 a more robust worm about 6 mm in diameter. I'm not sure how long that one is, because I may have broken him in half before I realized he was there. I think it was wrapped around the clam on the top and side. There may be a 3rd worm down the side as well. I got distracted by something else and never finished cleaning it up. Anyway, can anyone tell me what type of clam this is? Can anyone tell if the worms are different species or is one just younger than the other? I don't think creature #2 is not really identifiable other than maybe a barnacle type or something. I don't know my creatures. I'm new at this.
  16. Worm Snail

    Found on the beach at near Matoaka Beach Cabins. Donated to the Delaware Museum of Natural History. Genus reassigned from Lemnitina.
  17. worms?

    Hi Could anyone shine some light on what these may be ? My dad found them in a river circa 1960 and has always thought they were worms. Any information would be appreciated. Thanks in advance
  18. Worm fossil id

    Does anyone know what this "worm" looking fossil is? Found in Colorado outside of Silverton.
  19. Did I find a worm?

    Now that the ticks have died back a bit I am back to fossil hunting. Is this a worm?
  20. Help Identify

    Hi folks. Been scratching my head over these for years now. Can find nothing similar through searching the web. A museum in Berkeley Springs, WV has loosely similar and call it squid, but not really close in appearance. The end of these are almost perfect taper and radiussed end, almost like machined. Some have a small stipple dead center on the rounded end. Some have shallow grooves but some (most) are as smooth as glass. A local suggested they were filled holes left by worms of sorts. Thanks for your time and attention. Regards, Rocky
  21. Worms?

    This rock has raised shapes on it. Look like worms or eels to me. Any ideas?
  22. Mazon creek fossil question?

    Hi this concretion opened up recently. It's from mazon creek. Can tell but looks like it may be a worm? Any idea? thanks
  23. Coprolite with cephalopod inclusions

    This coprolite is from a marine creature that swam in the Jurassic seas that once covered this parts of England. The dark inclusions that can be seen on the surface are cephalopod hooks. In April 2016, the University of Minnesota X-ray Computed Tomography Lab scanned the specimen using a X5000 high resolution microCT system with a twin head 225 kV x-ray source and a Dexela area detector (3073 x 3889 pixels). Many of the images shown here are of individual 3D elements/features within the coprolite that were separated/isolated using Blob3D. The taxonomic classification given is for the inclusions, not the coprolite. Aside from the hooks, it is hard to definitively identify the inclusions without damage to the coprolite. The following is a list of inclusions: 241 hooks of various sizes that are at least 75% intact. 200+ plate-like fragments of various sizes. 19 ellipsoidal structures, possibly forams or parasite eggs. 2 unidentified long, straight conical structures joined at wide end (A) 1 long rod-like structure with a bulbous end (B) 1 unidentified mass that looks like it was the attachment point for 5 rod-like structures (C) 1 1ong cylindrical (rod) structure that tapers in the center. The center density is much lower than the outer shell (D) 1 irregular structure that looks I originally thought might be an ink sack or buccal mass, but the size is wrong. Experta think it is more likely foraminifera (E) 1 irregular structure, possibly a statolith (F) Acknowledgements: Thank you to Neale Monks and Christian Klug for providing input.
  24. Another fossil I need help identifying!

    Same thing as before, my son found this fossil and we want to identify it. They are redoing the water lines near the house and all kinds of stuff is being kicked up! Thank you!
  25. The ancient oceans of Earth were filled with monstrous beings. Long before sharks or whales – 520m years ago – there were carnivorous, swimming beasts that resembled giant bizarre crustaceans, and huge, spiny insect-like creatures that scuttled along the ocean floor. We know about these prehistoric animals because of the fossils they left behind. But because these imprints are often incomplete, we sometimes have to guess the details of exactly what the creatures looked like. But a new complete fossil we found has helped solve a mystery about the origins of a certain type of scary-looking mouth. We now know it was shared by several different extinct creatures and can still be found in living animals today. Diverse animal life suddenly appeared on Earth about half a billion years ago in the Cambrian period (542m to 488m years ago). One explanation for this is that an increase in the amount of oxygen in the air and oceans enabled carnivorous predators (which need more oxygen to support their active lifestyles) to evolve for the first time. Anomalocaridid. H Zell/Wikimedia Commons, CC BY-SA This spurred an evolutionary arms race during which animals evolved skeletons to protect themselves or to help them attack their prey more efficiently. In the seas, some creatures learned to burrow to safety in the sand and mud or evolved pelagic (swimming and floating) lifestyles to escape predators. Some of the largest predators in the Cambrian period were primitive members of the arthropods, the group of animals that today includes insects, spiders and crustaceans. These nektonic (free swimming) predators were called anomalocaridids. Each had a set of swimming flaps down its body, a pair of large stalked, compound eyes on the head, a set of segmented grasping appendages and a circular mouth apparatus. This mouth was made up of rings of plates and teeth, and was remarkably similar to that of the “sarlacc” monster in the film Star Wars: Return of the Jedi. Quite the mouthful When the first anomalocaridid fossils were found, they were thought to be the remains of several different animals. The head appendages were interpreted as the tail of a shrimp, the body a sea cucumber, the mouth a jelly fish. However, painstaking analyses in the 1980s of the Burgess Shale fossils from Canada showed that they were a single animal and, at 70cm long, it was the largest known to have lived in the Cambrian period. worm. J. Vinther and F. Pleijel, Author provided When what appeared to be a giant anomalocaridid mouth was found on its own in 1994, researchers used it to argue that some anomalocaridids must have been up to two metres in length. But in 2006, other scientists argued that the mouth was more similar to that of a distantly related group of animals known as priapulans. The modern day “ worm” (named after its shape) is in this group and can grow up to tens of centimetres long in today’s oceans. But the researchers imagined the fossil mouth must have belonged to a giant priapulan they named Omnidens. Shared appendages But we have now described new fossils that show both these theories are wrong – and right. The fossil comes from another exceptional site in the northernmost part of Greenland, called Sirius Passet, and is of a more primitive relative of the anomalocaridids known asPambdelurion. It had large grasping appendages on its head and flaps on the body but had not evolved the unique appendage joints that arthropods have. However, we did find that its mouth was the spitting image of that of Omnidens, formed from the same three kinds of teeth and plates in the same circular arrangement. False colour relief image of Pambdelurion whittingtoni fossil. Fletcher Young, Author provided So it turns out that this kind of mouth was shared by anomalocaridids, Omnidens andPambdelurion, as well as today’s worms, and was present in their latest common ancestor, which probably originated sometime just before the Cambrian (540m years ago). What’s more, we can now estimate that Omnidens grew to be 1.5 metres long. This is about twice the estimated length of any Cambrian anomalocaridid, which was previously thought to be the largest animal of the period. This mouth worked with the robust grasping appendages and a complex digestive system to allow these creatures to effectively consume prey. This gave them a competitive edge in the brutal undersea world of the Cambrian. It was these kinds of features that helped shape the predatory arms race that accelerated the explosion of life on Earth and shaped the early seeds of modern biodiversity. http://theconversation.com/-worm-mouth-monster-how-we-solved-a-prehistoric-mystery-66153