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Found 16 results

  1. These are very common at an exposure of what I believe to be the Monterey formation (Miocene) in Santa Barbara county, California. They look quite different from most pectinid fossils I've seen in southern CA. Any ideas on ID, or references I should take a look at for this area? Thanks!
  2. svcgoat

    Baby pipefish?

    Pipefish Monterey Formation I found and collected this specimen myself and its unusually small. Is it complete? Is it a juvenile?
  3. pliebenberg

    Jaw bone(?) of a ???

    New member, first time posting! This object was located a couple of winters ago in the foothills above Los Gatos, CA at about 700' MSL. A large oak tree had fallen over and in the rocks brought to the surface (from a depth of about 3') by the uprooted stump was what appeared to be some sort of a fossil jaw. The inner surface has cavities which very much look like the roots of teeth, especially molars. It reacted very strongly to a drop of dilute HCl acid. About 45 grams in weight. Other fossils found in this area are small "clam" shells, foraminifera, mineralized whale(?) bones, and once I found a shark tooth. Geology maps show this area is Miocene sedimentary but it's quite close to a boundary of Miocene/Oligocene sedimentary. I haven't a clue if this "jaw" is from a mammal, a fish, turtle, (???) or not a jaw at all. Very stout whatever it's from. Any ideas will be much appreciated. Regards, Paul
  4. Jurassicbro238

    Lompoc Fossil ID

    Some of the first few fossils I ever collected came from Lompoc, California in the Monterey(?) formation. They definitely fueled my passion for fossils and prehistoric fauna. Anyway, I was wanting to make sure I've got my IDs right for some of the stuff I've collected. #1 This first one is probably the largest piece I found. Is it a pectoral fin from a large fish? #2 was really neat to me. It's a vertebra with what looks like the ribs still attached! #3 And this piece I'm not sure about. It looks like a skull piece from a fish #4 Looks like a mostly complete fish! It looks like its mostly missing the tail and I'm not sure what genus or species it is. It's seriously tiny though. I've got both halves of the head which is cool too. The detail is so small that my phone is having a hard time picking it up unfortunately
  5. 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.
  6. 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 trunk rings combined with 51 tail rings. These characters and the number of dorsal rays distinguish it from S. avus." Identified by oilshale using Fritzsche 1980. References: Fritzsche, R. A. (1980) Revision of the eastern Pacific Syngnathidae (Pisces: Syngnathiformes), including both recent and fossil forms - Proceedings of the California Academy of Sciences (42), 181-227. Wilson, A. B. and Orr, J. W. (2011) The evolutionary origins of Syngnathidae: pipefishes and seahorses. Publications, Agencies and Staff of the U.S. Department of Commerce. 331. https://digitalcommons.unl.edu/usdeptcommercepub/331 Journal of Fish Biology 78, 1603–1623 doi:10.1111/j.1095-8649.2011.02988.x
  7. 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/SEFSC: Identified by oilshale using David, 1943. References: David, L. R. (1943): Miocene Fishes of Southern California. Geological Society of America Special Paper 43:1-187. Fierstine, H. L., Huddleston R. W., and Takeuchi, G. T. (2012): Catalog of the Neogene bony fishes of California: A ystematic inventory of all published accounts. Occasional Papers of the California Academy of Sciences 159:1-206.
  8. Rocca Hombre

    Mollusk fossils

    The specimens that I've collected have washed down from the Monterey Formation, there are three watersheds that flow away from this Formation, I have agatized mammal bone, oysters, and agates from clams, muscles, these are two bivalves, the same species's one is quite larger than the other, also agatized oysters
  9. Greetings all. I had forgotten about this piece of shale that I split while at Jalama a couple of weeks back. To my eye it looks like either a land insect, or possible a sea bug, like a shrimp. Then again, it may be nothing. But just in case it's just to the right side of almost nothing, I figured I'd post an image or two. Thanks for any input provided. Cheers. Rats, I forgot the size reference/index. Length is ~15mm. Exploding fish reference thread. Monterey formation in Santa Barbara, CA, USA.
  10. Greetings experts, enthusiasts, and fellow pareidolia sufferers. I just got back from spending a couple of nights at Jalama Beach Park. I did manage to get in a little bit of rock splitting while there. I didn't see anything fish-like. After searching for a bit before my back said "no more", I reached the pick end of my hammer over towards a larger chunk of material and gave it a whack on the side where I thought it would split. It split nicely. At first I didn't see anything, and maybe I still didn't see anything, but something did stand out as unusual no matter what it actually is. At the bottom of that balloon shaped staining there is iron-colored staining(?) that is reminiscent of a human fingerprint. And while I know it's impossible for it to be a trilobite in such a formation, the imprint looks like a trilobite stain. The overall shape of the staining also looks like a horseshoe crab. All of that said, I'm thinking that it's most likely a seaweed fossil print something of that nature. Any thoughts are appreciated. If anybody would like another image of another area on the split, let me know. Cheers all. MrR.
  11. 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?
  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. So, I have two more fossils (I think), that I could really use help with.... Both found in same location(s) and formation(s) as my prior posts. The first, looks like the impression of a mollusk/shell to me (about 3/4' in diameter) ??? The second, I cant even begin to guess as I would probably be wrong anyway. lol Its corkscrew in shape and about 3/4' long. It left a mirrored impression of itself on the opposing rock. Any thoughts???!!! Thanks in advance. :0)
  14. Found this sandstone shale rock with possible insect fossil in the State Park.
  15. From the album: Elasmobranchs

    I do not own this rare tooth. It is from the collection of paleontologist Joe Cōcke, which he found locally and gladly allowed me to photograph.
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