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  1. Looking to see if anyone is able to identify this as an Anomalocaris appendage? Measures approximately 60mm Middle Cambrian Latham Shale Marble Mountains, CA, USA Thanks in advance!
  2. I acquired this specimen from an amateur fossil collector acquaintance of mine so unfortunately, I don't know where it was found and when it dates to. It is roughly the size of a dollar coin.
  3. Nautiloid

    2023 fossils

    Howdy folks! I’ve had a lot going on so I haven’t been super active on here as of late, but I wanted to do a little recap of some of my favorite finds and acquisitions of 2023. Hope yall enjoy! Thanks for looking! First up is by far my favorite find from last year. This bug was collected as a ventral specimen in February, and was flipped and prepped dorsally by Jon Ginouves. Hypodicranotus striatulus is an exceptionally rare species from the Middle Ordovician Trenton Group of NY and equivalent strata in Canada. This is the first NY specimen I have ever seen or heard of coming out of strata outside of the Walcott-Rust Quarry. Up next is another piece from the same locality as the Hypodicranotus. I believe this came out of the site in the late spring or early summer. Generally, juvenile Gravicalymene magnotuberculata are near impossible to find, but I stumbled upon a mass plate containing around 20-25 specimens ranging from prone to fully enrolled. It is entirely possible that this is the largest cluster of this species ever collected, which is pretty sweet. This pic doesn’t show the whole plate, but you can get the general idea of how plentiful the trilobites are! This next specimen is just a cephalon, but it is from the iconic and very rare Walcott-Rust Quarry trilobite species Sphaerocoryphe robusta. This was found when I visited the locality in June with @KompsFossilsNMinerals . Normally I only focus on trilobites while collecting, but this past October I made a couple short visits to a Fiddlers Green Formation eurypterid site very close to my college campus. Eurypterid material is very sparse, but I did find some pretty interesting pieces. The most exciting of these was a partial Dolichopterus macrocheirus specimen showing the prosoma, 2 tergites and most of the appendages. Along with the usual trilobite suspects, I also ventured into some new territory strata-wise. I was able to visit an Onondaga Limestone locality several times during the summer and fall where I found half a dozen or so Odontocephalus selenurus specimens. Through my work in the Tully Limestone, I have become good friends with Steven Mize, who primarily collects the unit’s trilobite species. He invited me to come collect the Tully with him in July, which is when he gave me this beautiful enrolled specimen of an undescribed Basidechenella sp. While out collecting, Steve found this plate of 6-8 undescribed Asteropygine sp. , which he was kind enough to let me keep! During this past fall, I became very interested in the various Cambrian biotas of China. Here are a couple of Radiodont appendages I acquired. I believe the first one is Guanshancaris kunmingensis, and the second is Anomalocaris saron. This is my favorite trilobite I acquired from China. Although it is only a partial, this Redlichia mansuyi from the Guanshan biota exhibits one of its robust antennae!
  4. Hello! This is my first post. I'm happy to meet you all! I currently have a very modest fossil collection, but have been keeping my eyes peeled for some specimens that I was really excited about. I came across this fossil, which I was considering adding to my collection. It is described as a 200g fossil of a 60mm Anomalocaris appendage next to a small brachiopod. It was found in the Latham Shale in the Marble Mountains of California, and it's indicated that finding these is a very uncommon occurrence. I was wondering if anyone here might have insight as to if it's real, fake, or restored in any way. Thanks!
  5. This was in a box that was labeled trilobites from what was labeled Providence Mt in California. But to me does not look like a trilobite.
  6. PiperPaleontologist

    Western NY Arthropod (?) Fossil ID help

    Some classmates and I found these materials resembling an arthropod with a potential matching trace while having a field day a few weeks back. Due to the strange preservation and limited material, we've been struggling to ID them. We believe this looks like a partial, segmented arthropod- but it doesn't have the typical higher-quality carbonized preservation. Does anyone have any ideas? Canajoharie River - Canajoharie NY.
  7. SilurianSalamander

    Trilobite pygidium or brachiopod?

    Each square is one centimeter. What is this mould of? Thank you!
  8. Fullux

    Aegirocassis?

    I've been fascinated with Aegirocassis for a while now. The fact that a complex, giant filter feeder occured so many millions of years ago astonishes me. Its just such an alien animal. I've found little fragments of arthropod molts in the Drakes formation which belong to Isotelus. That got me wondering. What are the chances that instead of these all being from isotelus, that they're instead from another arthropod such as a eurypterid or ordovician radiodont. Another question I have is, does aegirocassis or a radiodont related to aegirocassis occur in any places other than morocco. The Drakes formation seems to have experienced a submarine landslide (don't quote me on this) and most to all of the fossils there are of creatures that were overtaken by said landslide. (Not entirely sure if this is true) But, what if there were such radiodonts like aegirocassis living in the Drakes formation but the only fossils we would find of them is molt fragments like the ones I've found that fell off of the animal and were buried in the sediment, instead of whole body fossils because they were able to escape this landslide. Though, I suppose the only way to confirm that such a radiodont lived in the Drakes would be to find an actual fossilized corpse of one. Really I just think this is a fun idea but it definitely would be cool if it is true.
  9. SilurianSalamander

    Are the IDs on these Cambrian fossils correct?

    Hello! I bought these Cambrian soft tissue fossils supposedly from Yunnan in china off of online auction site. I won them in a bid for suspiciously cheap. They seem real to me, but I’d be interested in confirmation of that. I’m also interested what you guys have to say as to what these are. Thanks! One is listed as Naraoia spinosa, the other, fainter one is listed as Vetulicola.
  10. connorp

    Pennsylvanian arthropod bit

    Maybe a long shot, but I'm hoping someone might recognize this. It looks like a piece of some arthropod exoskeleton to me, but further than that I have no idea. It was collected in the Pennsylvanian of Illinois. The site it collected from is terrestrial/freshwater. It is dominated by plants but has produced bivalves, branchiopods, and shark egg cases – typical fauna for a site like this. Some other possible arthropod bits have showed up, but nothing obviously identifiable. I would expect horseshoe crabs and/or insects will show up eventually, but nothing definitive yet.
  11. Fullux

    Arthropod remains?

    I've found a few of what looks like remains from a trilobite or some other Ordovician arthropod at the Drakes formation in Louisville, Kentucky. Is that what these are?
  12. cameronsfossilcollection

    Estaingia bilobata

    From the album: Emu Bay Shale Trilobites

    Emu Bay Shale Ptychopariid trilobite! This Australian treasure was a gift from a generous friend!
  13. cameronsfossilcollection

    Estaingia bilobata

    From the album: Emu Bay Shale Trilobites

    An amazing gift, this Lower Cambrian ptychopariid was prepared by Ben Cooper.
  14. cameronsfossilcollection

    Juvenile Emuella polymera

    From the album: Emu Bay Shale Trilobites

    An exceptionally lucky, fresh split Emuella from a small piece of Emu Bay Shale. Barely 2 mm, about half of the bug is present.
  15. Lucid_Bot

    Carboniferous Worm?

    This fossil comes from east Pittsburgh. I believe the formation is the Casselman, Conemaugh Group, Pennsylvanian. It looks like a worm to me, but what do you think? Thanks.
  16. tekknoir

    Another tiny... something...

    Don't ask me how I find the tiniest things in existence, it's a gift, lol. I don't have a proper scale on hand, but the stone is about 7mm, corner to corner at the longest. I was thinking maybe a partial crinoid or some sort of arthropod, but the underside is dimpled sort of like volcanic rock, so maybe it's just a feature of the rock and nothing more? I'll try to add more details when I get home. Found in Doña Ana county, New Mexico.
  17. Fullux

    Arthropleura?

    I'm interested in this Arthropleura fossil and I just want to make sure it's legit. The seller says it's a pleurosegment from the tail of a younger individual. They also point out that there are Mariopteris remains.
  18. SilurianSalamander

    Ostracods?

    Found in the side of a building in Wisconsin, Cambrian-Devonian rocks here. Any ideas? Thinking bivalves or a bivalved arthropod. Sorry for the lack of scale! Each one is about the size of an apple seed
  19. SilurianSalamander

    .75 inch trilobite?

    Paleozoic rock. I found this looking back through some scrap rocks. I think this is a stone I found some crinoids, brachiopods, horn corals, and a trilobite in before. .75 inches long (sorry for not including a scale in the picture) thanks!
  20. connorp

    Mazon Creek millipede?

    I had this Mazon Creek concretion open today. It was collected from the Braidwood biota (freshwater/terrestrial). My best guess is a partial millipede (Amynilyspes?) but I'm not sure and wanted to get other opinions. Thanks for any help. @Nimravis @deutscheben @bigred97 @RCFossils @stats @flipper559 @Mark Kmiecik
  21. Another mystery specimen; this one belongs to a relative who doesn't take good pics and is far away, so I'll begin by apologizing for the photo quality. No locality info, but this person has many other fossils from Morocco, so that's a possibility. It has hints of fish, but only hints; I think I see one or two fins. What I can't work out is the overlapping arrangement of segments. It looks vaguely like an arthropod (Aglaspid, maybe?), but again, I think I see a fin or two. Uuuughhghghghghghhhh.... It's driving me absolutely bonkers. Help?
  22. Mahnmut

    Lower permian arthropod trace?

    Hello dear fellow forum members, some time ago I was given the remnants of a geologists expedition souvenirs, without any labels. The piece pictured below was in a box together with a nice example of the trace fossil tambia spiralis, and about the same colour matrix. So I assume it could be from the same location, which may be the famous permian Bromacker quarry. It most resembles Limulus traces as far as I could find though. Described from Bromacker are several species of roaches, but on the other hand, I do not know if it is really from there. Any ideas?
  23. Nautiloid

    Eurypterus remipes + Acutiramus telson

    From the album: Bertie Group fossils

    This is a nice association piece showing a decent Eurypterus remipes along with an Acutiramus sp. telson. This piece is from the Fiddlers Green Formation at Lang’s Quarry, and was a gift from a close friend.

    © Owen Yonkin 2022

  24. Crane Hill, AL Carboniferous Thoughts about this textured layer of this rock? A few weeks ago, I realized this specimen was too fragile to be cleaned by a newbie. The surface looks sort of like pebbled leather, but it is extremely brittle. I put it in a box to explore later when I have learned how to clean something like this. Tonight, I came across a pic of megaloolithus in old thread about Dino eggs emphasizing texture. I realize my specimen is is not from the correct time period to be an egg shell of anything - but, it piqued my curiosity again. Dino Egg thread Any thoughts? My inexperienced wild guesses: arthropod carapace? Under surface of exoskeleton? I hope the texture comes across in the photos. Thanks for looking:)
  25. L.S., Would like to call upon TFF's collective expertise to help with the identification of fossil I found in the Westphalian D (Upper Carboniferous) of the Piesberg quarry near Osnabrück, Germany. The specimen (part and counterpart) shown on the photographs below is almost 8 mm large along its longest dimension. The surface is relatively shiny compared to plant material in the same slab of rock and covered in small tubercles (or other little bumps). The shape is subtriangular in outline and seems to be bounded by a "band" of some kind along at least half its circumference. The "bumpy surface" with tubercles makes me think in the direction of something arthropodan (ostracod???, branchiopod???), but honestly I'm quite out of my depth here... Clam??? Would love to hear your thoughts! Thanks for your interest, Tim
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