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  1. 29ford

    Shell ID and age

    Hello everyone I need help IDing these shells and more importantly the age. I have had these for 25-26 years, I got them when I worked offshore the Gaviota coast California about 7 miles and they came from about 3-4 thousand feet deep into the formation (maybe deeper, I cant remember its been so long ). They have to be millions of years old, the water depth there is 1000 feet and like I mentioned earlier they come up from 3-4 thousand feet deep into the formation., Thank you
  2. Jlark18

    Unknown Backyard Discovery

    Two bones found in my backyard planter roughly 1ft/12in below the surface. Location: Orange County, Southern California, United States. The larger of the two bones has one side cleanly cut. We have never buried any animals/pets nor placed any bones in our backyard in the 30+ years our family has lived at this property. Perhaps they are from the previous owner. It's a little unsettling not knowing where they came from and what they belonged to. Any information you can provide would be greatly appreciated. Thank you.
  3. Brought my son out to my new secret spot in Contra Costa County, SF East Bay Area, CA (thankfully NOT within any park boundaries). The spot is a deep creek bed around a border where Eocene (Tdu/Domingene form.) and Early Cretaceous (Kbs) meet. There are lots of nice gastropod fossils in large masses of sandstone, a few brachiopods here and there, but my favorites are the many quite large bivalve fossils and whole oyster fossils we found. Today my son spotted a really nice cluster of large bivalves peaking out the wall of the creek bed, and he found another whole oyster! He was so thrilled.
  4. I've been living in Chinese Camp, California for five years. I wouldn't have moved here except that I took my wife and two children looking for ammonite fossils. We found none that day, but we ended seeing an old country store for sale (only business in the abandoned town) and eventually bought it and live on the property. The fossils around here are all late Jurassic, but because of the forces that created the Sierra Nevada mountains, the fossils are very rare and in poor shape. Finding a whole ammonite, no matter small is a cause for great celebration, but this doesn't dampen my enjo
  5. RCD

    Curious Oyster?

    Someone else mentioned finding oyster fossils in the SF East Bay area CA, What you you guys think of this one? Area is a creek bed draining a diverse ranging from Miocene to Jurassic and in between. Thanks in advance for lending your experience and knowledge to hep me I.D. fossils.
  6. RCD

    Whale Vertebrae?

    Hey guys. Thought this was suspect enough to post up. Fossil or just rock? Area is a fossil-rich creek bottom draining a diverse area ranging from Miocene to Jurassic, California SF East Bay area. Thanks in advance. RCD
  7. RCD

    Petrified Wood?

    Hey guys, yet another I..D. request from new fossil spot, which is a deep creek bed which drains a diverse area ranging from Miocene to Jurassic. Wondering if this could be fossilized wood. Any thoughts?
  8. Hello: Would like to know if anyone can help identify the several impressions on the rock in the attached photos? I am guessing that the roundish impression could have been made by a crab shell, but the other one is a mystery. There are also numerous tiny white all over the rock surface and wonder if these were left by small creatures. The "crab shell" measures 1.5 mm across. The other impression measures approx. 4 mm in length and approx. 2 mm tall. It was collected years ago just north of Santa Barbara. Thank you.
  9. G.Pedersen

    Help Identifying Fossil Impression

    Hello: Would like to know if anyone can help identify the attached fossil image? This fossil impression was collected years ago north of Santa Barbara. The impression measures approx. 10.5 mm long. Thank you.
  10. Found these along a creek bed about 30 miles inland at about 500 ft. elevation. Any ideas?
  11. RCD

    Spirally shell fossils

    Would love to know the species of these spirally shell fossils. I think they are from the late Miocene but not sure. I'm also curious if the oblong rock intrusions in the first pic might be fossils as well? The location is the East Bay Hills in between the San Francisco Bay area and the Central Valley of California, USA. Thanks!!!
  12. Shaneyadav

    Tooth rock

    Found this rock at half moon bay in California. It leaks out a black tar substance and I have no idea what it is. It has 4 little prongs that look like tooth roots and it’s shaped like a molar. Any help would be appreciated.
  13. Saber-Toothed Mammal Fossil Unearthed in California Sci News, Mar 16, 2022 Paleontologists Uncover the Oldest Sabertoothed Predator Riley Black, Smithsonian Magazine, March 15, 2022 The open access paper is: Zack, S.P., Poust, A.W. and Wagner, H., 2022. Diegoaelurus, a new machaeroidine (Oxyaenidae) from the Santiago Formation (late Uintan) of southern California and the relationships of Machaeroidinae, the oldest group of sabertooth mammals. PeerJ, 10, p.e13032. Yours, Paul H.
  14. Does anybody know of some decent hunting sites in California? I know of Latham shale, but I'm not sure if it's very beginner friendly.
  15. harperforbes

    Beach Tooth Fossil ID

    Hello all. I found this on a beach in Santa Cruz, CA earlier today. No idea what I'm looking at - all of the similar teeth that I looked at online didn't have a base like this one. Thank you for any help.
  16. Found this today, which I think is a fossil of leaves? Thanks! Location: Monterey Formation shale, Monterey County, California (Miocene) Outside of Carmel Valley, near Garland Ranch, among pea crabs (Pinnixa sp.) Description: About an inch and a half in length (I could get exact measurements). It looks like they have a complete margin(?) with a central midrib and veins that alternate. From a single split, so, positive and negative sides.
  17. gtheo

    Possible lichen fossil??

    Found on beach north of San Francisco. Area has Merced deposit fossils, mostly marine sediments Pliocene-Pleistocene but I believe there are also terrestrial fossils in the area. What is it? It looks vaguely like lichen. or possibly a seed? Part of the attached rock was very black and shiny and flinty and had a sulphury/smokey aroma.
  18. MarcusFossils

    USA/California/Cambrian/Lower Cambrian

    From the album: My Collection

  19. Sjfriend

    Latham Shale unknowns

    OK, on my few trips to the Latham Shale in the Marble Mountains of Southern California I have found a few things that I'm just not sure of. I will include any info before each photo. Scale: little marks are 2mm, bigger numbered marks are cm 1: Ok, first I will include 2 photos of what I question as maybe trilobite hypostome. I haven't found any good illustrations of Olenellus hypostome. I've found probably 10 of these. They all look the same shape though many different sizes. 2: Next, I find a few of these each day. The cephalons from the trilobi
  20. pfegiz

    Fossil Isopod

    11mm long. Found in Santa Barbara County, near Lake Cachuma, in the Monterey Formation (Miocene). It looks to me like an isopod. I've looked at online databases from the Natural History Museums of Santa Barbara and LA County, and searched the scientific literature, but could not find anything resembling it. I would be very grateful for any suggestions.
  21. Phillipku2001

    Possible Horse/cow fossils?

    Hey guys new to the forums and thought I’d make a post to have you guys help identify some possible fossils that i found in a local creek after heavy rains.There are lots of mission era ranches so there is a possibility of them being old but not fossilized cow bones. Let me know what you guys think
  22. Not sure if this is anything. Could it be a fossil? Found in Southern California yesterday.
  23. I am not sure where to start looking, but this looked interesting. Not sure if there would be fossils in it, but like I said I have no clue. I am near Forest Falls CA.
  24. In October of 2021 I made a 4 day trip to the Marble Mountains of Southern California to look for trilobites. The order of note is Redlichiida. The biggest percentage is Olenellus followed by Bristolia then Mesonacis. The vast majority of finds are just cephalons followed by thorax pieces. Last year I hunted here about 8 days. I probably found over 400 cephalons (could be a way higher) but only 2 completes with 3 maybe's as there are buried. With all that I've only found 1 pygidium on its own. There are a few other fossils to be found at the site. A couple brachiopods, a hyolith, and a few oth
  25. Sjfriend

    Latham Shale Slab Repair

    Found on my last trip to the Marble Mountains Latham Shale. I found this when just a little bit was sticking out of the hillside surface. Took me most of a day to extract. As you can see, it didn't as they say "come quietly" I used a couple little tubes of super glue to hold it together as much as possible before extracting it but it still came out in more then a few pieces I spent about a week getting it back together as much as possible (I mean really, who doesn't have some bolts and screws left over when putting their car back together ) I have a lot more advanced prep to loo
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