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  1. 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
  2. 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
  3. 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
  4. 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
  5. 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?
  6. 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
  7. 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
  8. milesdomecq

    Is this a whale bone?

    I'm thinking this a whale bone, maybe a humerus? Found in Mendocino, California. Thanks for your help!
  9. 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!
  10. 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?
  11. 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.
  12. 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
  13. 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?
  14. Samurai

    Coral or Mastodon Molar?

    Hello! one of my coworkers brought in this fossil since they knew I was interested in that sorta thing and when I first saw it my mind went to coral but they said it was from California and was told it was a Mammoth molar, so I had to change my theory. While I know it is not a Mammoth molar it definitely has a tooth like structure, and in my opinion, could look like a heavily worn down Mastodon molar but I wanted someone who is an expert in this field/ knows more information than me to help with the identification. I didn't get to measure it exactly b
  15. BellamyBlake

    Southern California - Mammal

    I have here fossils from Southern California. There's no other info on them. It was an impulse buy, and they weren't a tonne of money. They looked canid to me, but I'm not sure what they are. If anyone knows, I'd appreciate the advice. Largest is around 1 1/2" Thank you, Bellamy
  16. Fossilizable

    Eocene curiosity

    This piece of arkosic sandstone from the late Eocene Coldwater formation north of Santa Paula, CA, has a few marine species traces. It would be great if anyone could ID the bivalves, but what really seems different is the set of chevrons I've pointed to in the top photo. Maybe it's just two bivalves wedged together to look like one? Appreciate the help!
  17. While visiting family in Arizona and California I was able to figure out where the Marble Mountains trilobite quarry was located. It's not that far off the road system so I figured I'd give it a look see on my drive from central Arizona to Northern California. The location is only about 25 miles out of my way so why not. On my drive north I only had a few hours so this stop was mostly a fact finding trip. The view from the car windshield. The Marble Mountains are the lower hills to the left of center. The quarry area is just to the left of the gap between hills
  18. Thecosmilia Trichitoma

    Natural Park California Fossil Laws

    I have been looking into a new fossil site exposing the Bay Point Formation in San Diego, CA. I want to see if it would be legal for me to go collecting there, as it looks like it could be a good exposure. The signs around it say that it is a "Natural Park commissioned by the City of San Diego." I couldn't find anything on Natural Park fossil laws when I looked them up. Does anyone know of the regulations of them?
  19. Fossilizable

    Cambrian puzzler

    While out on a trilobite hunt several years ago in the Marble Mountains, San Bernardino Cty, CA, I found these two pieces on the surface in the region of a Latham shale exposure, so I think they would have belonged to the Chambless shale, which is in fact exposed as a bluff above the surface. Here's one: Here's the other: I'm not sure about these. They might not even be organic or in the same genus if organic. The source field might be a zone with Chambless and Zabriskie quartzite mixed. So there's a chance they're inorganic, I guess. How
  20. Fossilizable


    Hello! Here are several photos of a fossilized colony of some sort of worm, or so it appears to me. Please excuse the remnants of clear nail polish I used years ago to increase contrast before I knew better. I came across this in Santa Paula canyon about 2 miles northwest of highway 150 where it turns west at Thomas Aquinas College, Santa Paula, CA. It had washed down decades ago from probably a Matilija Formation exposure. The matrix grain seems quite fine and the rock is very heavy. Although I've been up and down the creek countless times, I've never seen the source bed. Eocene oysters, clam
  21. Gregory Kruse

    California Gastropod Identification Help

    I purchased this large gastropod fossil at a rock and mineral show back in 1991. The location is from Capitola, California, USA and I believe that it may be Pliocene in age. Any help in identifying it would be greatly appreciated! Thank you!
  22. Fishing With Franco

    Found a fossil.

    Found this in New Melones lake in Angeles Camp California. The lake was very low and we found a few fossils. Is this common here? How old is it? I’m pretty sure it’s an Ammonite. The last pic is some sort of fin or wing maybe? It’s only 3 inches long. Thanks in advance.
  23. jhw

    Small jawbone i.d.

    Can anyone identify this piece? Supposedly a fossil and from southern california, but I don't have it in hand so all I know. Ruler is in inches. Thanks!
  24. I wanted to get out of there house to do something social distanced outdoors. I'm very new at fossil hunting and I was wondering where I might be able to go in/near Santa Cruz CA or anywhere north of there. Thanks : )
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