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  1. 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
  2. Not sure if this is anything. Could it be a fossil? Found in Southern California yesterday.
  3. 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.
  4. 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
  5. 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
  6. 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
  7. Sorry if this is the wrong topic category, I don’t have much experience with this forum. I recently found out that there are Cambrian fossils in the Marble Mountains in California, and I’m wondering what the laws are for collecting there. I’ve always wanted to collect Cambrian fossils and that’s the closest location to me, but I don’t want to break any laws. If it is legal, what tools and equipment should I bring? Thanks!
  8. This was found in the Pliocene marine Pico Formation of Southern California. I'm leaning towards a marine mammal but I'm not even sure if this is bone or part of an echinoid test.
  9. Nimravis

    Maricopa Brea Bird Material

    I am just going through some miscellaneous pieces that I have in my collection. I received these 3 pieces from my fossil mentor Walter Lietz, about 30 years ago, he received them in a trade with a fossil dealer from California named Judy Owyang. I met Ms. Owyang a couple of times when she would come up to the Chicagoland area and meet at Walter’s house. All 3 pieces are to have come from Maricopa Brea and are supposed to be bird fossils. I was wondering if someone knows what type of bird the claw belongs too, it looks like a raptor to me.
  10. I found this scallop shell while walking on one of the hiking trails at El Moro Canyon in Orange County in Crystal Cove State Park, but I wanted to ask what species of scallop this specimen represents, because the marine Vaqueros, Topanga, Monterey, and Capistrano Formations are exposed in Crystal Cove State Park.
  11. fuzzybaseball58

    Shell of some sort

    So I found this rather large specimen embedded in rock near the cliffs of half moon bay on redondo beach, California. Found amongst barnacle scallop and clam fossils as well. I’m thinking ammonite or nautilus, or something of the like.
  12. oilshale

    Syngnathus emeritus Fritzsche 1980

    From the album: Vertebrates

    Syngnathus emeritus Fritzsche 1980 Miocene Santa Barbara California USA Length 19cm / 7" The species of the family Syngnathidae belong to the order Syngnathiformes. The name "Syngnathiformes" means "conjoined-jaws". Syngnathiformes is an order of ray-finned fishes that includes among others pipefishes and seahorses (Syngnathidae), razorfishes (Centriscidae), trumpetfishes (Aulostomidae) and cornetfishes (Fistulariidae). Fishes of this order have elongate, narrow, bodies surrounded by a series of bony rings, and small, tub
  13. oilshale

    Syngnathus emeritus Fritzsche, 1980

    Taxonomy according to Fossilworks.org. Fritzsche 1980, p. 218 : "Diagnosis.- A Syngnathus with 43-47 dorsal rays; 10 caudal rays; pectoral rays not detectable; 14-15 trunk rings; 51 tail rings; snout 1.5-1.8 in head; orbit 5.8-8.7 in head; brood pouch not seen; largest specimen examined 181mm SL. Description.- Ridges of body smooth and generally not accentuated. Osteology basically the same as in extant species of Syngnathus. Plates small, width of trunk plate less than orbit diameter. Dorsal about as high as depth of adjacent body. Comparisons.- S. emeritus is unusual in having 15
  14. AmadorGreg

    Bone, branch, root or other?

    Found this on 11/11/21 hiking near the shore of Lake Camanche in Amador County, CA. Camanche is a reservoir fed by the Mokelumne River and is pretty low this year, exposing some good rock hunting spots. Last year a ranger with EBMUD discovered fossils of mastodon, camel, horse and more in this watershed. We found lots of petrified wood and this one item that to me looks like a tibia or fibula because of the ridges that slowly spiral around it. All of the petrified wood was much lighter on the outside I believe from calcite. This item didn't have any of that on the outside, was much darker
  15. Emilie

    Fossil claw or tooth

    Hello, I’m new to this site. I found this fossil in my backyard. Is it a claw or bone? thank you for your help in advance !!!! Emilie
  16. Tim Delaney


    I found this in the front yard of a house in Oakland, California. The owners are having there property landscaped. Just a muddy blob yesterday. Well folks any ideas?
  17. oilshale

    †Argyropelecus bullockii DAVID, 1943

    Taxonomy according to fossilworks.org. Description from DAVID 1943, p. 11: “Length of head 37,5% to 41%, depth of head 43,8% to 58.8%, depth of body 50% to 63.8% of length of body. Vertebrae 38; 2 small abdominal spines; 12 abdominal lanterns; 3 + ? postabdominal lanterns. Supraneurals project above body for a distance equal to four-fifths of base of dorsal fin. D. =9; A. = 12.” Line drawing from DAVID 1943, p. 60: Photo of a recent Atlantic silver hatchetfish ( Argyropelecus aculeatus) from Wikipedia by SEFSC Pascagoula Laboratory; Collection of Brandi Noble, NOAA/NMFS/SE
  18. Hi there, I have a collection of Santa Cruz, CA shell hash, from the Purisima Formation. It’s pretty much all non-mineralized mollusks, I think. I received a new piece that seems to be from the same formation (it was a gift from the heir of the original collector who lived in Monterey - the other side of the bay from the formation). The fossiliferous pieces inside this one have a totally different structure - much more of a radial/flakey look. I circled it in red in the first picture, and it’s the only rock in pics 3-6. I’d love to here if anyone has any th
  19. milesdomecq

    Is this a whale bone?

    I'm thinking this a whale bone, maybe a humerus? Found in Mendocino, California. Thanks for your help!
  20. CaraMarie

    Really cool fossil but what is it??

    I found this about 8 years ago in a dried up creek bed behind my house in the hills of Hayward, California in the San Francisco bay area, USA. We dug it out of some dry but soft sediment and I assumed I found a fungus/mushroom of some sort but now Im not so sure. I am a hobby collector and love it no matter what it is but I would love to have an actual identification. Thanks!
  21. ecastano

    Purisima formation

    My kids founds this fossil in Capitola, as part of the Purisima formation. Curious if it's something obvious enough for you pros out there?
  22. Crusty_Crab

    Unknown Find from San Pedro California

    A member of my monthly bug chat group is trying to figure out what this might be and I offered to post it here to get some ideas. It was dug from a hillside in San Pedro, where clams and crabs were also found. My best guess is the formation is Pleistocene Palos Verdes Sand. They have shown it to the ichthyology sections of the LA County Natural History Museum and seem to have ruled out it came from a fish. My best guess is maybe some sort of coprolite? However, its huge and I also wouldn't rule out some sort of human made artifact.
  23. DPS Ammonite


    This is a piece of late Miocene palm “wood” from Orinda, California. Not a true wood; it is part of the Palmoxylon form genus. Palm wood can rarely be attributed to a palm species identified by foliage or fruit such as Sabal. It was found in a landslide area on top of sedimentary interbeds of the Moraga Formation and the younger lacustrine Siesta Formation sediments. Volcanic rocks and possible spring deposits are nearby. Fossilized palm roots, reeds and petrified wood occur in the area. This piece and others found in the area represent the youngest palm fossils found in
  24. Hey everyone! Going to STH somewhat soon, I plan on going to Ernst quarries(or if anyone has any other sites they’d recommend), and was wondering if there were any tips anyone could give me, since This will be my first time. Also, are there safety instructions they give you when you get there?
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