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Found 227 results

  1. Fossil areas.

    I know I post a lot of topics but can someone point out good fossil areas from L.a to San Diego.
  2. People have told me to go to Diamond Valley, They said there are lots of fossils there. The lake is man made though. Paleontologist already dug out the fossils. So what is so good about it.
  3. Need id please

    Hi all! Newbie to the forum. Found this item about 20-25 years ago. I’ve just reunited myself with it after re-discovering it at my fathers house, in his front yard. I found this in Agoura, California while hiking close to the 101 freeway. It was found on a hillside, elevation around 1200 feet (above sea level).Partially buried. Mastodon? Whale? Sloth? Rock? Hmmm. Hope the photos help. I apologize in advance for the lack of metric ruler. One of the photos is a magnified close up of the bottom side which shows what seems to be a cellular-like inner bone structure. Specimen also seems to have a tendon-looking impression or canal which leads me to believe it could be a lower leg joint? I also wet the specimen with de-ionized water to show more definition. I can only submit 1 or 2 photos due to size limit so maybe I’ll do several posts. Thanks for looking!
  4. Cosmopolitodus planus Bakersfield

    From the album Cenozoic Sharks

    Colorful Cosmopolitodus planus from Bakersfield, California
  5. Cosmopolitodus planus Bakersfield

    From the album Cenozoic Sharks

    Colorful Bakersfield, California Cosmopolitodus planus
  6. Conifer cone or catkin

    I found these lignified plant parts that sort of look like conifer cones from the Pliocene/Pleistocene Merced Formation along the Coast just south of San Francisco. Douglas Fir and Monterey Pine cones occur in the same formation. What are they? Could they be alder catkins? Top photo: cone is 1.5 cm high. Bottom photo: longest cone is 4 cm. Thanks, John @paleoflor
  7. Insect Plant Fish or ...?

    Greetings, everyone. I spent the other day on the east side of Ventura County breaking open sedimentary rocks. I'm not experienced enough with that sort of material to positively ID it but I think it was siltstone. There was a leaf and something else on both sides of one of the rocks. I've been having a hard time figuring out what the "something else" is. It measures about 35 by 14 millimeters. I took a few pictures of both sides under different lighting conditions to help bring out some of the finer details. It comes from the Modelo Formation (Miocene). Thanks ahead of time for any help in figuring out what it is. Here are pictures of the first side: Some pictures of the second side:
  8. Is this a vertebra and if so from what?

    Do you know what this is? I think it’s a vertebra. it’s 2.6 cm is from the early Cretaceous of California the francican melange.
  9. Fossils found in Fairmead landfill in Madera County, California https://abc30.com/science/fossils-found-in-madera-county-landfill/5431221/ Fossil Discovery Center of Madera County, in partnership with the San Joaquin Valley Paleontology Foundation https://www.maderamammoths.org/about.html McDonald, H.G., Dundas, R.G. and Chatters, J.C., 2013. Taxonomy, paleoecology and taphonomy of ground sloths (Xenarthra) from the Fairmead Landfill locality (Pleistocene: Irvingtonian) of Madera County, California. Quaternary Research, 79(2), pp.215-227. PDF file at: https://www.researchgate.net/publication/235921980_Taxonomy_paleoecology_and_taphonomy_of_ground_sloths_Xenarthra_from_the_Fairmead_Landfill_locality_Pleistocene_Irvingtonian_of_Madera_County_California https://www.researchgate.net/profile/H_McDonald Yours, Paul H.
  10. Some of my collection

    Hello gang, As promised this is where I will share specimens from my personal collection, my grandfather's collection, and the collection that was donated to the university I work for. The latter is interesting as it is literally boxes of rock and fossils, with no information and my university does not have a geology or paleontology department. I'll be updating it every so often. Enjoy! NOTE: Some of the donated items have old school "labels" on them. If you see initials or such that you recognize, please PM me, as I am doing my best to properly catalog them properly as part of my job!
  11. I'm not a huge fan of large bones but here we go: a glimpse to mammalian fauna of California 7-12 million years ago. Video is from our Christmas break trip to South California/Nevada. My favorite was a rhino tooth.
  12. Hi! I did search for pea crabs from Carmel Valley and did not find any topics on The Fossil Forum. So, I decided to fill the gap with few links hoping that others will also share the experience.
  13. Hello, I'm new to this but hoping to get more involved. I went to the world-famous Sharktooth Hill (Bakersfield CA) last week and it did not disappoint! I am now trying to ID the ~150 teeth we found but I'm not very good at it (yet?). I did a bunch of the easier ones and had some on-site help from more knowledgeable collectors that was great. Lots of unknowns still, though. If anyone could offer any tips for how to go about IDing these teeth, that would be awesome (ex. Carcharhinus spp. Vs Negaprion? Or Isurus/Carcharodon planus Vs hastalis?) I also suspect I have some Isurus oxyrinchus/desori but not sure how to distinguish them from the rest. So, please feel free to point out what you think any of the pictured teeth are, and/or what features I should look for to get better at this. I can send additional angles of anything that might be helpful, as needed. Thanks in advance!
  14. Unknown Fossil, Images 1 - 3

    I am a new member and total fossil neophyte and am hoping that someone can help ID what I found while at the Mexican/CA border . Location: San Diego County, CA Site Description: At the side of a graded dirt road. Size: approx. 12cm Comments: This first looked like a concretion of some type but there are configurations that could indicate fossils? 1) The first is the embedded oval shape (Is this just a "rock" within the concretion?) [Images 1 - 3] 2) The second configuration appears to be a vertebrae? [Images 4 - 6 appear in 2nd post] I look forward to your comments
  15. Recently I’ve found some strange fossils from an area in Simi Valley (Southern California). I had thought there were only shells, but turns out there is vertebrate material! Among other fragments, I found a couple big whale vertebrae as well as this piece here that I am unsure about. I’ve seen some mentions of fossils from smaller marine mammals like dolphins and pinnipeds, maybe it’s one of those? Unfortunately there only one end present, so I’m not expecting to get anything too specific. The formation is about 5 million to 11 thousand years more. Hopefully I can get some more interesting things from that spot. Thanks!
  16. My brother found this while hiking I believe around Mammoth Lakes, California. Its almost perfectly round and feels somewhat light so it may be hollow. Google says its a concretion. My mom thinks its a Geode. What do you think?
  17. 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.
  18. Found near Castaic Formation

    Found this near the Castaic Formation in Santa Clarita California. The Castaic Formation is known for it's marine fossils but this looks like a bone from a land based animal. 20190512_080859 by Benjamin Scott Cook, on Flickr 20190512_080908 by Benjamin Scott Cook, on Flickr
  19. Long ago, back in the late 1980s, I lived in British Columbia and had the opportunity to collect in the Late Cretaceous Nanaimo Group. I realized that many of the crabs and lobsters I was collecting were undescribed, so I made an effort to collect any material I came across. I tried to find a collaborator willing to help describe the material, but (for reasons I described elsewhere) that didn't work out, and I was encouraged to take on the writing myself. Since I had to focus on my own research career, which actually has nothing to do with paleontology, the project languished and over time most of the taxa were described independently by others, based on specimens collected by other people. Although I would have loved to contribute to the published record of the Nanaimo Group I became convinced that that would not happen. Then, about two years ago, I was corresponding with Torrey Nyborg (a fossil decapod expert well known to some Forum members @fossisle @MB @Al Dente) and found out that he was working on some new species of the crab genus Archaeopus from Vancouver Island and California. I sent him my material, one thing led to another, and the paper has just been published. I am very grateful that Torrey included me as a coauthor. I was also able to contribute the holotype of Archaeopus morenoensis (Figure 15 panel A, attached below), which is actually from California. So thanks to Torrey I feel my long-ago efforts paid off. Don
  20. "Mammal Tooth" Shark-tooth Hill

    Mammals make up the bulk of my knowledge, but for this specimen I'm clueless. I'm thinking from the locality and the general look of the tooth it could be whale of some sort, possibly a dolphin? Allegedly it was found in Bakersfield California, Shark-tooth hill. I don't own this fossil so these pictures are the best I can get unless I purchase it, what do you guys think it is?
  21. Enchodus sp.?

    I'm very inexperienced with fish, so I could use a second pair of eyes on this one. The listing is labeling this as Enchodus sp., it's being sold from California, so I assume that's where it was found. I've asked for a more specific locality, but so far no answer. Unfortunately since I don't own the specimen, I can't take any better photos or give a reference for size. Thanks in advance!
  22. Marble Mountain trilobite id

    Many years ago I found this trilobite on Marble Mountain in California. It is roughly 1 cm across at it's narrowest and 2cm acrossat it's widest.. It is probably cambrian age without much detail preserved. I am unsure of what layer it came from exactly, as it was found loose as is. Any general ideas would be appreciated.
  23. hello my name is Nathan this is my first post. I am new to this so let me know how to do better location: Pismo beach California 4' above high tide line on the beach first photo is about 8in across I believe is a vertebrae. maybe a whale? the 2nd photo is about about 6" wide and is 4' away from the vertebrae. I did some research and found out someone found a sea cow about 10 north from this find but it is not in the same kind of sediment the sea cow was found in sandstone. it seems that there is no one really interested in preserving this he explained that he watched them fall about for about 15yrs and now they are gone. Are fossils so common that people pic and choose what's worth saving? I can get more photos and bring a tape measure its only a 4 min walk from my house. It would not let me add my other photos. thanks for your help
  24. Hipposyngnathus imporcitor FRITSCHE, 1980

    From the album Vertebrates

    Hipposyngnathus imporcitor FRITSCHE, 1980 Miocene Santa Barbara California partial fish
  25. I was on a hike on top of a hill (about 700 feet in elevation) in Chino Hills (roughly 50 miles inland from the Southern California coast line) and I picked up a few loose sedimentary slabs and looked under them. I found this clear fossil of a seashell. I’m wondering how old it could be? What period was a sea covering Southern California and this high up from sea level?
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