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Showing results for tags 'bivalve?'.
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Hello everyone, Recently I visited a golf course in Falls Church, Virginia - Fairfax county for any who are not familiar with that particular city. I recognized that I was likely to be on Culpeper Basin strata and noticed that there were numerous decorative boulders around the course. Due to their size I suspected that they had probably been sourced locally, and I took the opportunity to see if any might contain fossils. Although many of the boulders matched the Balls Bluff Siltstone rocks that I have encountered in my local stream site, I knew it was a stretch to hope for fossils and I kept my eye out mostly for carbonized plant fragments. After a while, I came upon one boulder that did not look radically different from those I had seen before - until I took a closer look. The boulder contained abundant impressions of what appear to primarily be brachiopods but which could also include some bivalves. Below are some photographs that I took of some of the larger fossils: Impression #1: Looks to be a brachiopod impression though I am not experienced enough in this area to rule out bivalve. Impression #2: Brachiopod? at the top right of the photograph and assorted material. Impression #3: Impression #4: Impression #5: Additional photograph of the boulder (apologies for lack of scale): Since it was a boulder I could not collect the specimen. As such, I cannot take more photographs of the boulder. Considering the fauna present on the piece I highly doubt that it came from the Culpeper Basin - as far as I know Unio sp. is the only bivalve known from Culpeper strata and to my eye these more closely resemble brachiopods. If they are not from the Culpeper Basin, where might the rock have been sourced from? The nearest Devonian-aged formations are the Mahantango and Foreknobs formations with the Needmore Shale being a bit farther away. Do the fossils or the rock resemble what one might expect from one of these formations?
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It’s been a while, but now I’ve got something worth posting about that I’d like identified. :) Took a trip to Lake Texoma yesterday and my husband found this. My guess is some kind of bivalve, but I’m hoping that someone here has a little more knowledge.
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Despite weathering, I was hoping there may be enough features for an ID. My initial impression was that it could potentially be a bivalve. However, after seeing a photo of fossil sponges from the area (see last pic), I think that is a reasonable consideration as well. Thanks for looking!
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I found these while on a trek uphill. I’ve posted it on different sites but no one can give a positive ID on my finds. Location is Cebu, Philippines by the way. Always been curious about how the ocean life was here millions of years ago as most studies indicate that the Philippine archipelago was submerged in water. For more angles, click on that imgur link as I have labelled those there.
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Item 1 looks like a pretty large bivalve, but maybe it's just a rock with a cavity or seed pod? Item 2 seems like a fossil to me, and seems to have the right "look" of a fossilized bone. Item 3 was found in the same spot as 1 and 2, a fallen tree next to a creek in Southeastern Mercer County. Item 4 was found farther south in NJ, near the Delaware River in Burlington County. My 10-year old is convinced it's a fossil - the blue rock is very soft, the matrix seems to be reactive to vinegar. As a beginner with a youngster who is obsessed at the moment with finding fossils, I'd love to be able to confirm we are heading in the right direction - even if we can't positively identify. And if these are just rocks, that's totally fine too The fun is in the hunt and spending time together. Thank you for lending your insight. Really.
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Is this a bivalve fossil or just a contoured flint?
Granny and Aust posted a topic in General Fossil Discussion
This little stone(?) caught my eye while sitting on Southwold Beach (UK). It’s basically a flint covered shoreline but the contours on this looked shell like. It could just be another bit of flint, but I’ve not seen this sort of weapon a piece before. thank you for any help - as usual -
Hello Everyone In June last year I went on a trip with my parents to the Late Ordovician / Early Silurian-aged Cotton Formation at the Cotton Hill quarry in Forbes. All relevant permission was obtained from the local council prior to attending. I have heard that the Fossil Club of Australia (formerly NSW) do trips here as a group as well, that's probably the easiest way to attend. I planned to post this in August, however due to Covid I didn’t have access to the fossils to take pictures. Also, I only just recently bought some macro equipment to take photos of the fossils which is why my post took so long. Be sure to zoom in on each photo as they are all highly detailed. (open in a new tab) For useful previous expeditions and information by others see: For those unaware, the fauna is dominated by Sinespinaspis markhami, a small odontopleurid trilobite. Unfortunately, I found no specimens with their free cheeks attached, nor did I find any specimens of the rarer Aulacopleura pogsoni or the even rarer Raphiophorus sandfordi. We had two days of digging, and the temperature was a cool 14-15C on both days, but once the sun came out and with long-sleeve shirt and pants on, we definitely started sweating. As soon as we got out of the car, I found a partial trilobite negative lying on the ground. It was 8mm long and looked like it was left behind by another fossicker. Once we realised where the designated fossicking area was (back near the road entrance, and not in front of the parking area) we could start properly searching for fossils. The first ones we found were on the surface on the westernmost boundary. It’s amazing how big the actual site is. Considering how deep the hole in the ground is, there probably would’ve been thousands or millions of fossils unearthed and used in road material over the years. Both the plates seem to be death assemblages, with hundreds of “trilo-bits” on them along with what looks like tiny shells. When I got home, I wanted to split the L-shaped to expose more of the second layer (you can see one set of cold chisel marks) but the matrix must have been unstable as it cracked into five pieces and exploded. It did set free a new trilobite though, which is cool.
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Hello! I’m a complete newbie, and would love some help id ing these cool finds. They were found around Jordan MT along a river shore(private land) that has been greatly exposed due to drought. Thank you!
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