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Found 274 results

  1. Piece of ?Mammal? Bone from Southern California

    I’ve received a chunk of what I believe to be a marine mammal bone from a diatomite mine in the Monterey Formation in Southern California. It is from the late Miocene but I’m not sure what mammal or what bone it is. I know this is a long shot as there isn’t much to go off of but anybody have a clue?
  2. Fossil ID - help with shell fossil

    Hi, I would really like some help to ID this fossil shell. Is it a brachiopod ? What time would this be from? I found this in the quicksilver almaden county park in California. There were quite a few similar shell fossils, Parts of them are visible in this piece of rock itself. Thanks a lot !
  3. Porpoise / Dolphin Bone?

    Is this bone from a porpoise or dolphin? it came from Palo’s verdes California and was found on the beach there. If so any idea on the age?
  4. Worm Borings?

    Hey everyone just wanted to check in with you all and see how you are doing. I also wanted to inquire about these Worm Borings/Concretions, and what our members consensus might be. Maybe our resident concretion collector @Ruger9a would be able to help me out. Anyway, here are the pictures: Here is a photo of the excavation site:
  5. Please help ID this

    Hello everyone. My husband and I found this today while combing the creek bed of the Escondido Creek located in Encinitas, California, USA. We believe it is a tooth. It looks quite old, however I am not sure whether it is fossilized. We are not fossil hunters or collectors, just everyday amateurs who stumbled upon this find. Any help identifying it would be greatly appreciated, thank you!
  6. Please help identify

    Ok these are more pics of the rock I posted already and was confirmed by this forum that it indeed does look like one. I'm focusing more on the mouth, jaw, and facial structure. The nasal cavity. In Hope's of possibly identifying what type of animal this actually is. Thanks for your help.
  7. Strange oddity possible fossil ?

    This one is crazy. After research it looks like the shape of a little embryo. Its white lifted off the rock and it has a while almost looks like a umbilical cord or vein. it's so strange
  8. Sth stuff (:

    Hi guys been going through some matrix and found some oddballs wondering if anyone could help, thanks 1.looks crocish? 2.looks almost like a worn pufferfish mouthplate? No idea though 3. Not really an oddball but wanted to show the wonderful purple colour 4 some kind of fish tooth?
  9. I searched every body of water on Rockd to see any sedimentary deposits that are near me; there is nothing. Everything is metamorphic, but then I came across Lytle Creek. I wen't on the map on Rockd and checked and it said something about sediment deposits. The info was too confusing; I couldn't find any easier info.
  10. Bone Skull Identification

    Hi there! I'm hoping you can help me narrow down what animal this skull might be. Most likely from the California area. Thanks in advance!
  11. Potential concretion?

    Found this at a undisclosed spot near Ventura, also found a large fossil shell deposit potentially from Pliocene. Will post pictures if people want me to. Btw if you have any clue or want pics of the other side of this please comment!
  12. Shale ID?

    Hey all! I got out today to hang out on the beach and ended up searching a shale scree not far from where I parked in santa barbara, CA. This looked like it had fossiliferous potential so I grabbed it along with a good amount of nice malachite. A tube-like shape with white crystal-like openings which measures about an inch in this piece of shale. Curious to se what you think and thanks as always!
  13. Santa Cruz Mountain Miocene Era Fossil #1

    I collect fossils in already disturbed areas around Scotts Valley, CA, mostly sand quarries and road cuts. The fossilized sand dollars I've collected date to the Miocene 10-12 million and, from what I understand, most everything is similar from a chronological point of view. This area was a vast, shallow ocean back then so most of the fossils are aquatic. An intact sea cow from this era was famously collected in this region. Thanks in advance for any help you can give me!
  14. New member;ID Request

    Hello new member here, my name is Robert! I found this site while searching google in an attempt to identify some beautiful items I came across recently while at the beach in san francisco. I understand most of you guys refer to yourself as amateurs, though reading a few forum topics before creating my account I was impressed with the amount of detailed information in regards to your studies and findings. That being said I must admit I am %110 amateur in my knowledge of fossils, different time periods, etc. So please forgive me if I seem to ask simple questions like I don't know what I am talking about, I am still learning. WELL, in regards to the piece I am hoping to learn about (please see attached image). I recently found it while I was at the beach in San Francisco area. It measures 2 and 3/4 inches wide, 2 inches tall, with a shallow depth of a 1/4 inch. My main question is...WHAT is it!? I've seen many sand dollar fossils, coral rock fossils, clam fossils recently on the beaches here, but I've only seen one like this. The milky white crescent shaped object that is offset to the right of the center of the stone, looks like a tiny shrimp or something (again , please forgive my lack of knowledge). Also, the only thing I can relate the slightly irridecesent dark blue-ish streaks to are the inside of some of the mussel shells that I see on the beaches here, so maybe it is in relation to that...? Again, I have no idea but I do speculate much as I've recently grew heavy in interest on the subject and those alike. It would be greatly appreciated if anyone has some pointers on or can possibly identify this, what I believe to be, fossil stone of some sort. I have many photos of all the beautiful items I've recently collected, and needless to say, so many questions I wish to ask you all in regards to them. I am planning to post detailed images of them all in the My collections section but for some reason most of my pictures on my phone exceed the "Max total size of 3.95MB" in the image upload section so I am going to try and take some different pics that are "uploadable". I would be more than happy to take new pics or zoom in closer on any specific area(s), if needed or necessary. Thank you all for your time
  15. Hey everyone! I have a couple recent finds that I would appreciate your input on. I’m currently unsure of the formation that these fossils come from. I found this outcrop underneath a parking lot. It’s orange conglomeratic sandstones which makes me think Hookton Formation which would place it somewhere around 450,000 ybp. Scale is in inches.
  16. Hey everyone! This will be my first attempt at a trade in the TFF. Im offering a variety of fossils from the Price Creek Formation of Humboldt County, Northern California. This formation has been dated to late Miocene early Pliocene. As far as to what I’m looking for in this trade, I love all things Mollusca! Gastropods, Bivalves, Ammonites, Belemnites or Brachiopods, I’ll take them all. Invertebrates of any kind will strike my fancy though. The weirder the better. I’ve seen some Ram’s Horn Oysters that are awesome! I have no qualms about trading for these as a whole set, however shipping would be cheaper. I’m willing to ship anywhere in the United States, if your international I’m afraid that you’ll have to absorb that cost. I really appreciate all the knowledge that members have been forthcoming with sharing. Please pm me if your interested. -Nick
  17. Hey everyone! I’m starting this post as a continuation of this post: http://www.thefossilforum.com/index.php?/topic/102463-virtual-fossil-hunting-field-trip/ I’ve decided to start this new thread in prefer to better conform to the sites organizational structure and to serves as a more permanent home for my future adventures. So, if you haven’t already seen it, in encourage you to read it in order to catch up. In light of our current events I’ve decided to practice some self quarantine at my favorite fossil hunting location. The rocks here, the Rio Dell formation, represent an eastward trending embayment from the Pleistocene, overlain by orange conglomeratic sandstones called the Carlotta Formation, indicating and delta environment that fed into said bay. These have all been uplifted by the numerous and complex fault systems that Northern California is famous for. This site is easily accessible via a trailhead about 350ft above the beach.
  18. Possible Vertebra?

    Recently found this potential fossil in Capitola Beach, California. I’m new to fossil hunting, but the rock inside kind of resembles a potential vertebrae? Whale vertebrae are known to be found in this area, along with a variety of shells and I’m curious to know if this could be a specimen. Anyhow, if this is not a vertebrae could someone help me ID it? I put a standard American quarter on the second image to display the size. Thanks so much for your time!
  19. Unknown Potential Mollusk Fossil

    Recently found this fossil in Capitola Beach, California. I found an abundance of fossilized shells in the area, but this one looked dissimilar. Anyways, is it possible that this is just a disfigured shell? Or is it something else? Thanks for your time!
  20. Capitola Fossil ID

    Recently stumbled across this, possible, fossil in Capitola Beach, CA. I found an assortment of fossilized shells but was unsure of this find. Anyways, I’m new to fossil hunting and don’t have an exceeding amount of experience, so any knowledge regarding what this could possibly be would be helpful. Thanks!
  21. Giant ground sloth ungual?

    I had no idea what this one was, probably just a scrap of bone but worth checking I think, sorry for lack of scale but it’s around 14 cm long it’s from STH (also I havent fully prepped it yet as I want to know whether to get someone with air tools to do it or do it myself)
  22. A Eurypterid in San Diego?

    Found this artifact in Black's Beach, San Diego. Looks like a 6-ft scorpion. A Eurypterid maybe? I video and 3D scanned the find and sent it to The Nat and ROM (Toronto). Waiting for a response. Here are a few pictures. This ditch is likely to have been dug by the recent rains. Compare the size to my wrist watch: Closer look: Wavefront .obj file: Hit me up for high-res images, obj file, video, etc. Thanks!
  23. Tooth or rock

    Found on the surface in Sacramento Co. CA.
  24. File Fish Vert?

    Hey all, I found this little vertebrae at my usual location, sticking out of the mud that comprises the Rio Dell Formation, Pleistocene in age. The best I can identify it as is a Filefish Vertebrae. Doing a quick Wikipedia search, I learned that some species have been known to enter lagoons and estuaries, which is good news for me since the Rio Dell represents an ancient bay environment. Ive attaches a reference image of some file fish verts from North Carolina. (Source Here: https://www.fossilguy.com/sites/l_creek/lcrk_col_fish.htm) Id love to hear all your opinions. And thank you for all the help that you guys have given me thus far, this is one of the best communities on the internet.
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