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Showing results for tags 'mollusk'.
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From the album: Lutetian Mollusks
© @ Alexandre Tuel
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From the album: Lutetian Mollusks
© @ Alexandre Tuel
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From the album: Lutetian Mollusks
© @ Alexandre Tuel
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From the album: Lutetian Mollusks
© @ Alexandre Tuel
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From the album: Lutetian Mollusks
© @ Alexandre Tuel
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I'm almost certain this is a clam of some kind. It's solid rock and has all the features of a mollusk. There's a hole in the side where you can actually see the clam itself. There's a multitude of different species on the river bed here. I find oysters too. Huge ones. This all used to be lower gulf region millions of years ago according to maps
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Myanmar Amber ([Unnamed Fm.], 99.34-98.10 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
![Myanmar Amber ([Unnamed Fm.], 99.34-98.10 Ma)](//content.invisioncic.com/e327962/monthly_2021_11/small.PICT0001.jpg.d4cf40b84be6ee30220a96340d34f316.jpg)
From the album: Fossil Amber and Copal: Worldwide Localities
Polished specimen containing sediment/calcite-filled domichnia (burrows/crypts) formed by mollusks of the family Pholadidae (likely subfam. Martesiinae): these features were formed while the resin was in a marine environment and after it had sufficiently hardened, all preceding its burial and subsequent diagenesis. Provenance of specimen is Tanai Township, Myitkyina District, Myanmar. This image was captured using a HAYEAR HY-1070 microscope.© Kaegen Lau
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Hi All, It's been a while since I have posted, let alone gone collecting but I just had a really good trip down to the Matoaka Beach Cabins in St. Leonard, MD. Here you can pay $5 ($10 on weekends) to access their beach which gives you about 1/3 of a mile to explore. I went down on Tuesday the 14th since I had some time off from work. It coincided with an extremely slack tide which directly led to many of my best finds. No shark teeth unfortunately, except for two pieces that were just roots with the toothy part broken off. I did however clean up on Ecphora sp. and Cetacean bones as well as a couple of mollusks that are hard to collect. A view of the beach with a fall from last year. It's about 1/2 the size it was last year and will likely be even further reduced by this time next year. Such is the life cycle of the cliffs. A view of the cliffs straight on. I'm not positive but I believe the shell bed exposed is the Shattuck zone 18, Drumcliff member of the Choptank Fm. Above that is zone 17 which is the St. Leonard Member. Both are Miocene in age. I'm still digging into the ID of what I found so please correct me as needed. A specimen of Dosinia sp. with some of the original shell coloring preserved. I'm not yet sure who this is, but they are hard to collect intact as the matrix is very crumbly and so are the shells. I suspect this is from the St. Leonard Member of the Choptank F,. This is a small razor clam and is another tough one to collect because the shell is very thin so it doesn't erode out intact. Typically it just falls apart. Ecphora sp. in the water that you could see thanks to the slack tide. I found a bunch of these in different sizes and surprisingly intact. I found 3 Cetacean vertebrae in the shallows of the low tide with the largest one about 4" across (6" of you include the "wings") Oh yeah, then there was this odd limb bone, but I posted more pics of that over in Fossil ID. I also managed to get over to the Potomac and walk along the banks at Purse Creek Park. Nothing spectacular, but it was still fun. Maybe if the weather cooperates I can get another trip in before it gets too cold. Thanks for viewing! Dave
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Help needed for ID Miocene - Pliocene, or Upper Eocene, Mollusks from south central Chile
terminatordiego posted a topic in Fossil ID
Hello again to all of you guys , I´m in a huge need oh help to ID some mollusks of south central Chile. Currently these are storaged in the vault of a local university. I know taht the fossils in the images are not in the best conditions, but the outcrop itself sadly has been seriously reworked by a bulldozer machinery (they may be a little bit flattened). At least to a family or genus level ID should be nice considering how they actually are. The beds should be of the Miocene to Pliocene. But also theres a very minor chance of being from the middle to upper Eocene. The larger axis of each cabinet is around the size of a fist. Here the photos: Thanks again and greetings from Chile!!!
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My father found these fossils near Vilafranca del Penedes (Catalonia). I would be grateful if someone could identify their species (I do not know even if there is more than one) and how old could they be. Their size is up to 25 cm and on the narrow end can be seen, in some of them, a few grooves, sometimes blue in colour while the rest looks mostly pale yellow.
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Preservation of colour in fossil shells
pachy-pleuro-whatnot-odon posted a topic in Questions & Answers
Hi all, Some time ago I found this shell in (what I believe to be) the French Upper Muschelkalk (Triassic). Now I'm not into shells myself, but to judge from the remains of operculum on the underside of it, the specimen concerns an oyster. Most strikingly, however, the shell has a pattern of darker-coloured lines that do not correspond to any three-dimensional/elevational differences on the shell surface - which is, in fact, entirely flat. I haven't seen this on a fossil shell before. Now when doing a Google search for my response on whether it would be possible for crustacean carapaces to retain traces of their original colour, I bumped into an article that described that molluscs may incorporate melanin in the calcite of their shells to create the colour patterns we see (e.g., here). This got me wondering: could the lines I'm seeing indeed be traces of the original melanin pigmentation of this shell? And, if so, how common is this phenomenon? Does anybody else have examples of such shells? I'd also be very happy if someone could furnish me with a genus or species name to go with my specimen. But here I'd like to primarily raise the topic of ancient colour reconstruction in shells.
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Hello, fossil friends! I'm a first-time poster to the forum. I've had this little fellow for several years now. I found it hanging out among the gravel decorating an apartment complex in the southwestern United States; Tucson, Arizona, to be specific. I cannot explain why it was there, unless it was somehow ignored as a rock, or discarded by someone who no longer wanted it, but all the same, I was aware of the general shape of an ammonite, and brought it home with me because, well, its spiral was pretty! There are several dry rivers about the area, but I know next to nothing about where these little guys might be found. I can offer that Tucson is well-known for its gem and mineral show, where one can often find such things for sale. It appears to have flecks of turquoise, which is common in the area, among so many other bits and pieces I cannot identify. Otherwise, I have no other information to offer regarding it, so I leave it to some of you vastly experienced individuals! A complete novice, I'm attaching several photographs, and pray you'll find it in your hearts to be kind with me in my quest to find out the genuineness of this neat little buddy. Included in the images are my attempted measurements, as indicated. In advance, I thank you!
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With the nicer weather last week, I was able to make two brief trips to kick of the year. There still ended up being a lot of snow on the ground, but it was manageable. My first trip was to one of my favorite sites, a roadcut in the Pennsylvanian LaSalle Limestone in Illinois. Lots of the usual stuff was found, but the two trip makers were a small Peripristis shark tooth and a Linoproductus mass mortality plate. Here's the tooth. I think it will clean up nicely. And here are the Linoproductus. There's around 50 individuals present, and they are all quite small compared to most Linoproductus specimens I find at this site. This is probably the best brach plate I've found here. Here's a random shot I took of the headwall. Most of the common brachiopod species at this site are visible. A few days later I had a couple hours free in the morning and checked out some new Ordovician spots in southern Wisconsin. Here's a neat roadcut I drove past, showing the contact between the Ancell and Sinnipee Groups. The lower unit is the St. Peter Sandstone and the upper unit is the Pecatonica Member of the Platteville Formation. The Glenwood Shale is the narrow shale unit between the two. The site I ended up hunting was in the Grand Detour Member of the Platteville. In this area it's mostly dolomite, and most fossils are internal molds. The preservation is thus not great, but splitting rock can yield nice mollusks on occasion. Here's a typical example of the molluscan hash. This large Ctenodonta was a nice treat. It's about 6cm at the widest dimension. The trip maker was a coiled nautiloid, the first I've found. I am not sure on the ID. It measures about 2cm in diameter.
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Only one I've ever found like this. What it is exactly, I don't know. Found in a load of limestone road base, likely from a local mine.
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Need some ID help on this one. Eocene, Keasey Formation, and an inclusion or something inside a concretion. Size of the whole piece is 12 x 15 cm, weighs about 6 pounds. Image 1 - Mollusk on top of something that has included into the matrix #2 is a close up of the mollusk and surrounding area Closeup of the inclusion material More images to follow.
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Hello. A friend of mine showed me this fossil. He received it as a gift, so he doesn't know its origin. It seems to me to be an ammonite. Could you help me identify the species and its approximate age? Thank you.
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Hello everyone! These fossils were found in the Southern Gulf Islands of Western Canada. I am currently working a museum that has been mostly volunteer-run since the 1970s, so a lot of our records have gaps. These two fossils are a part of our collection, but we don't have much information on them. Do you recognize either of these two fossils? Thank you so much! Justine
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I found this chunky fossil this morning at Myrtle Beach. I would love to think its mammal associated, but I'm not sure it's not just a mollusk fossil. I may learn more by cleaning the crusty ocean stuff off.. I don't think it's a cast based on the grain in the broken cross section. Any help would be appreciated.
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These mollusk fossils are of a friend o mine, who got it from a stonework supplier. He says that it comes from Arizona, and that is all that he knows about it. Can you help me to identify the species, and the aproximate age? Tank you
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I currently have this fossil temporarily written down as Bembexia suclomurginata based off some pictures i’ve seen but i need more clarification. I’m not sure where it was found, the seller never clarified the location.
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All, I found this fossil in a shale deposit of Pennsylvanian age in Northeastern Oklahoma. The shale is probably Chanute formation and contains other marine fossils. I would appreciate any help with ID. Best wishes.
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Folks, I found this fossil mollusk from a shale deposit in Northeastern Oklahoma. The shale is of Pennsylvanian age (probably Chanute formation), and contains other marine fossils. I would appreciate any help with ID. Best wishes.
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Found in ploughed field. In sand stone. Easily smashed off. Other shells pictured in stone. Really unsure what it is as live the furthest away from sea as anywhere can in UK....
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Origin unknown; found in box of junk at yard sale. Guessing it is some type of clam from regular ridges on outer part of piece; inside piece has blackish "softer smoother" piece than outer hard piece. Has striations like gills or hair? Is soft tissue normally found in fossils? Kind of thought they would be the first thing to dissolve when something dies; if so what is it?
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Recently stumbled across this, possible, fossil in Capitola Beach, CA. I found an assortment of fossilized shells but was unsure of this find. Anyways, I’m new to fossil hunting and don’t have an exceeding amount of experience, so any knowledge regarding what this could possibly be would be helpful. Thanks!
![Myanmar Amber ([Unnamed Fm.], 99.34-98.10 Ma)](http://content.invisioncic.com/e327962/monthly_2021_11/small.PICT0001.jpg.d4cf40b84be6ee30220a96340d34f316.jpg)
.thumb.jpg.36c7d687f7075bc49546915f5d94f403.jpg)
