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Showing results for tags 'ostracod'.
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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From the album: Devonian Ostracods from Paulding, OH (2022)
© (c) Matthew Okasinski 2023
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The 1st few may be the strangest rocks I have found. Appreciate any input. Thanks! Rock 5Rock 6 & 7: could these be fossilized tree roots?Rock 7 - external surface Rock 7 - close up of internal side (smooth) side Are the following specimens too weather worn to make a general ID? I know they are pebble-ish, but on some, there are potentially ribs (very worn), etc. I’m wondering about echinoids, ostracods, possible small brachiopods. Potential bivalve?
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Found in some Paleozoic chalk and limestone gravel along with crinoids and brachiopods.
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Silurian ostracod species of the Leighton Formation
Mainefossils posted a topic in Member Collections
In this thread, I hope to share numerous examples of the ostracods of the Leighton Formation. As I identify them to at least genus level, if not species, I hope to post them here. If anyone has a better suggestion for the id, please let me know. First up is a cast of a left valve, female, Hemsiella maccoyianna sulcata. Length is approximately 900 microns. Literature on the subspecies: Copeland, M. J. (1964) Canadian Fossil Ostracoda, Some Silurian Species. Geological Society of Canada 117. https://emrlibrary.gov.yk.ca/gsc/bulletins/117.pdf Martinsson, A. Ostracodes of the Family Beyrichiidae from the Silurian of Gotland. https://paleoarchive.com/literature/Martinsson1962-BeyrichiidaeSilurianGotland.pdf.
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Hi all, I collected this fossil a while back, I’m wondering, is it an example of a large ostracod? The fossil is from the Devonian Chemung/Foreknobs formation near New Castle, VA. I have no idea what it is, but ostracods are known from the area, and I could see them as a possibility. Any ideas? *fossil is 3cm in length
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This measures just under 1mm. Ostracod?
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I have been finding these small little fossils all through my specimens from the Leighton Formation, which is Pridoli. I suspect that they are myodocope ostracods, but I haven't found any ostracods that match it from my available literature. The specimen below appears to be an association of two valves. Each individual valve has a small protuberance in the middle, with two pits next to it; they are approximately 4 millimeters long, by 1.5 millimeters wide. The pictures below are first of photo with direct lighting, then a photo with raking light, to show the protuberances. Any help would be greatly appreciated!
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Fossil Forum, I recently found a single ostracod in a fossiliferous rock I collected from the Leighton Fm. The formation is Silurian. I was thinking there was a possibility that it was Zygobeyrichia devonica, which I saw mentioned as being in the Chapman Sandstone at this website https://pubs.usgs.gov/pp/0089/report.pdf, but the valves did not match, and the formation was not Silurian. Here are some pictures of it:
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Hi everyone I think I just found a new hobby With my latest fossil delivery I recieved quite a lot of microfossils & matrix vials as the world of microfossils was something that I have been long interested in. So a 2 weeks ago I finally ordered my first microfossils for which I reserved a special drawer in my archive cabinet. So here is a recapp of what I all got: 3 vials of permian material from Waurika, Oklahoma 1 vial of permian material from The red beds of Archer County, Texas 1 small vial of Conodont rich Mississippian material from the Chappel Limestone formation, Texas 1 small vial of Cretaceous Lower Gault Clay, East Wear bay, Folkestone, Kent, UK A micropalaeontology slide with Jurassic Blue Lias matrix rich in holothurian material. A thin section of an Ostracods filled Elimia snail from the Green River Formation in Wyoming A thin section from the Rhynie chert of Scotland which should contain preserved parts of the plant Aglaophyton major and perhaps even other species. I also got a lot of Bull Canyon micro fossil teeth and 2 cretaceous mammal teeth from Hell Creek In this topic you will be able to follow my path through this newly discovered hobby as I will post my finds and progress Currently I am only working with a clip-on cellphone microscope, but I do plan on getting a professional microscope in the next few months! (Tips are always welcome) So let's put on our Ant-Man suit and explore the microfossil realm So here are some of the first pictures I made of some of the microfossils Starting with the thin slices! Thin slice with Ostracon filled Elimia tenara snail from the Green River Formation, Wyoming Thin slice with Aglaophyton major from Rhynie Chert in Scotland
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I recently collected at an exposure of the Rochester and McKenzie Formations in Maryland. The ostracod typical of these formations is Kloedinella. While I did find a lot of those ostracods, I also found these two fossils. My initial guess is that they are of a different ostracod, Leperditia. I tried to Google to identify if Leperditia can be found in these Formations but I did not have much luck answering that question. What do you all think? Any help is greatly appreciated.
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About 5 years ago I had a paper published in a few newsletters and a Forum member asked if it was published in it's entirety because it seemed incomplete. Well, I reviewed the issue of the DVPS newsletter and, sure enough, the entire "Results" section was left out. For anyone who cares, here it is in all its glory. https://docs.google.com/document/d/1XWuV6BvSU8tAfmQUDEzZmLiZNijx8JWNo6UOUiBSI1c/edit Tom
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hey all! i was going through some of my stuff & found this pretty cool rock- it’s from anticosti island and has many ichnofossils in the top & bottom- i’m thinking they’re borings. on the bottom i noticed a figure vaguely resembling a circle- from what i can tell, it’s an ostracod. opinions & feedback are very much appreciated, & thank you in advance!!
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Hi, I have another mysterious fossil. Silurian. Ostracod? Any ideas? (Bottom right): Side View:
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Hi all, Found these itty bitties in a park in Orillia, Ontario. They’re not in situ as they’re in ornamental stones around the playground. We also find lots of gastropods and brahiopods in these stones. Not having rocks in situ is less than ideal but “urban fossil hunting” is awesome when you’ve got young kids in tow! I’ve never actually seen ostracod fossils before, so just wondering if these could be some? They look like the approximate right shape. They are quite tiny, around 3-4 mm. Canadian quarter for scale. Thanks for any help! Gavy
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I realize this is modern, but I thought it was unique enough to share. While ostracods are pretty common in this matrix, this is the first time I've seen one like this. It's not my area of expertise, but this one looks conjoined.
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Identification based on page 63 of "Ostracods of the Middle Devonian Silica Formation" by Kesling and Chilman (1978). This was a float sample
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