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Showing results for tags 'brachiopod'.
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From the album: Lower Carboniferous fossils of Ireland
Carboniferous limestone of the malahide formation east coast ireland-
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Finished up a beautiful specimen of Eospirifer radiata (Sowerby) from the Silurian Waldron Shale Formation Indiana, USA. This species is not uncommon in the Waldron Shale however, fully inflated specimens with the shell intact are hard to come by. In addition, collecting a specimen with all the fine detail and epifauna is even more a challenge. This piece has it all as it was completely buried in the matrix as you can see from the photos. After 4 hours of preparation with air scribes and air abrasive the exquisite detail is realized. This is easily one of the best specimens of this species I have in my collection. Specimen collected and prepared by me.
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Hello y’all! Since my last brach prep thread, I have actually prepped another brachiopod that I intended to make this thread about, but it turns out that it had been crushed prior to fossilization. I decided that it wasn’t worth writing home for, so I present to you: Project Sticky! Here it is before any prep: Now, the name is self explanatory: the matrix is so sticky, it’s pulling off a layer of shell with every rock flake!!! You can see an area where it pulled off much more than everywhere else: I decided that while this one will be a rough brach, I might as well finish it. I’m still trying to learn, so really this is partially a practice prep. Anyways, here it is after a total of 40 min prepping: Still far from done. Aaand, when I went to hammer some of the excess matrix, this got exposed: Looks like this rock will have a double brach prep. Should make it look more eye-appealing when done. Anyways, I did all this yesterday, and it took about 1 1/2 hours. Didn’t take any pics, but I did paraloid the exposed parts of the main shell. Next update may come tonight, or tomorrow morning. Hope y’all enjoyed this, have a great day!
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From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
From the album: Lower Carboniferous fossils of Ireland
Malahide formation east coast ireland -
It's 8:30am, below freezing, and cloudy - the perfect time to hike up a mountain to collect fossils! A rock-hounding buddy of mine recently stumbled upon a hash layer on one of the hikes we've done in Montana, and kindly offered to show me. Unfortunately the layer wasn't at the beginning of the trail, rather the end, so we had to climb 1,900 ft (6 statue of liberty's) and millions of years in geology to get to it - nature is rarely conducive to human ambition. After the short (2.5 mile) but steep hike, we made it to rock slides where the layer was being eroded and immediately began spotting plates of brachiopod hash - I can't believe I missed them before! Based on the geologic map of the area, I suspect these are Late Devonian-Early Mississippian in age. Wacking my geologic pick into the hill to carefully climb the steep slopes of the rockfalls, I began spotting some nice specimens. They were preserved in a pretty powder blue, and easy to spot against the dark matrix of the ancient sea floor. Unfortunately a lot of them appeared smashed in their tumbling down the hill. I loaded up my backpack with probably 40-50 lbs of rock, which in hindsight was not the best decision I've ever made. Here are some of the more interesting pieces (I don't know them any more precisely than "brachiopod", feel free to chime in brach fans): I was especially hoping to find a winged brach - I didn't find a nice one - but my friend generously gifted me one he found minutes after I mentioned hoping to find one. Hope you enjoyed! I'll be headed back to Texas where I have more trips in mind...
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Devonian Brachiopod Plate
Lucid_Bot posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello. Please let me know if you think this specimen is genuine. It supposedly comes from the Kowala Formation of the Holy Cross Mountains of Poland. It is Devonian. and the entire plate measures 16.51 by 13.72 cm. Thanks for the help.
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- carboniferous pennsylvanian
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In my Secret Santa gift last Christmas from @connorp I received (among other nice items) a very nice little hash plate from the Mifflin Member of the Platteville Formation (U/M Ordovician, Blackriverian, ~453 MY) from SW Wisconsin. The picture below is the plate as it was received and in my 12/20/22 post about getting it I said: “A great hash plate. I already see two or maybe three different trilobite types with a couple of them tantalizingly partially buried and an interesting gastropod that I am not familiar with. I think a little prep work will make this even more spectacular. As an added plus, it represents my first fossils from the state of Wisconsin.” I finally got around to doing the prep I talked about and spent a little time exposing some of the more prominent fossils and giving it a gentle going over with air abrasion to bring out some of the features. I think it looks even better than it already did and I was even more impressed with the wide variety of fossils on the small section of rock. Below is the cleaned up plate: Here is a collage of the plate just turned at different angles to the sunlight in case it helps to bring out any features: There are hundreds of fossil fragments on this one small piece of rock, but I want to highlight the top couple dozen specimens. With the help of some TFF members via previous posts and replies in a couple of ID threads I put out (thanks @Tidgy's Dad, @connorp, @piranha, @minnbuckeye and others), I have identified several trilobites, brachiopods, gastropods, ostracods, bryozoans, and a crinoid and want to show you this wonderful diversity in such a small space. If anyone sees changes to my ID's please feel free to chime in. Some will be very specific ID's and some will be a bit more general. The picture below is the key to where each of the numbered specimens is on the slab (see number in upper left of each specific picture). We will start with the trilobites. Although each is only a partial, there is enough present to get a pretty specific ID on most of them. All are new genera or species in my collection. Here are the brachiopods: Here are a couple of specimens of a really neat gastropod which was new to me. So often it seems Paleozoic gastropods are just internal molds or rather plain forms, but this first one is very nice. Here are a few bryozoans and one very small horn coral. There were several of these small corals, I'm not really sure of the ID, I didn't research them much yet. Just a couple of small crinoid columnals were found. And last but not least are the ostracods. I am used to small ostracods (which some of these are) but there is also this one form that is huge (by ostracod standards) coming in at about a centimeter long. At first I thought they were brachiopod fragments until I looked at them closer. These things are the size of a kidney bean! Note the scale difference between the Eoleperditia and all the others. Most of my ID's are questionable as I was using a reference that is for the immediately overlying Decorah Formation until I can find a listing for the Mifflin Member. OK that is everything for now. I hope you have enjoyed the wonderful diversity of this small slice in time. With a little more investigation, I may yet tease out a few more specimens worthy of an ID. Thanks for looking. Mike
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Each square is one centimeter. What is this mould of? Thank you!
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Hit a new spot for a very short period today after work and grabbed these. Found 3 good sized flexicalymene but damaged, two appear to have been smashed before fossilization. Also found some good sized isotelus sections that I left and will inspect when I get back there to see if they are worthe keeping, along with alot of flexi partials that I left. Could have collected 100s of matrix free brachiopods... they are everywhere. if any of you guys need any for your collection let me know. Maybe we could do some type of trade or something.
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IDing my Waldron Shale finds is going well, but I hit a snag when getting to Atrypa. My research shows Atrypa reticularis is a common brachiopod found in the Waldron. Also mentioned was Atrypa newsomensis, for which I could not find a picture or description of. My finds include what look like two different Atrypa species but could be the same. There are smarter members than I that hopefully can set me straight on this. The first specimens are what I feel are Atrypa reticularis. The next group are much more ornate. They remind me of Spinatrypa beulla of the Devonian.
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From the album: Mahantango Formation
Athyris spiriferoides Perry County, Pennsylvania-
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Would love help from middle Devonian shells. I know spiriferids are hard to ID but worth a shot asking experts!
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From the album: Oklahoma Paleozoic Fossil Finds
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