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Showing results for tags 'silurian'.
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I’ve been a little dormant in the forum in the last couple year but it’s not for my lack of interest in fossils!! Sometimes it’s just hard to set time aside for everything. I have some fossils I want to donate to the forum and I hope writing it here will help me hold myself accountable to make the time to post them I moved to Frankfort, New York last year which situated me 30 minutes from the well known Lang’s quarry and only 15 minutes from an exposure of the Bertie formation (great place for looking not finding haha…the rock is bulletproof). Moving with a massive fossil collection is something I wouldn’t wish on my worst enemy!! I’m still not fully unpacked and set up my library display. Anyways, I was able to schedule a day with Al Lang to dig at his quarry. He’s not doing many pay to digs these days. Kinda winding down on those ventures but I have a little back history with Al so he was generous enough to have me over. Pictures incoming!
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Calymene blumenbachii (enrolled) “Dudley bug” Wrens Nest, Dudley, England. Much Wenlock Limestone Fmn., Wenlock, Homerian, Silurian. c. 422.5 – 427.5 Ma age. Species exclusive to the Wenlock Series of England. A unusually nicely preserved old Victorian piece exhibiting the dark honey coloured patina often found in such historical specimens from being handled over the many years since it was collected by a Wrens Nest quarryman. This specimen makes a nice accompaniment to my outstretched (unrolled) specimen.
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Thank you for looking at this fossil from Silurian Herefordshire. I believe it's Wenlockian. Size 2cm x 2.8cm. One side is bumps up (sponge?). Other side has remarkable detail even by local standards ime. I'm hoping someone can tell me more. Links to any relevant academic papers online would also be welcome. Sorry about the photos. Thank you again.
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Llandovery. Only 4mm but the pattern is reasonably clear. Rock with mostly brachiopods and corals.
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Hello again, here are another two fossils (or not) that I'm unable to place. They come from llandovery formation locality Hýskov from a shallow sea rich with trilobites, graptolites, brachiopods, bryozoans and crinoids. All other llandovery formation localities in Czech republic are deep sea shales with only graptolite fauna and very few brachiopod species. 1) Hýskov is very rich with beautiful graptolite fauna, like this dendroid Dictyonema graptolites. This fossil (if it is fossil) is preserved in a very much same way as the graptolites, while other fauna there is more plastic. 2) This one is probably a cephalopod of some sort, probably related to Cyrtoceras? However I can't see any segmentation. The white structures are probably only some sort of secondary minerals? Thanks in advance for your opinions Ondrej
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I'm wondering if these trilobites are IDed correctly. 1. Deiphon fleur From the Czech Republic, Wenlock Formation, Svatý Jan pod Skalou locality 2. Staurocephalus murchisoni From the Czech Republic, Wenlock Formation, Svatý Jan pod Skalou locality
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Found near Altoona, Clinton Group, Silurian. Is it a brachiopod? And what are the vibrant yellow and red parts? Is it from mineralization? Thank you.
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Pair of Juvenile Eurypterids from Lang's Quarry
Jeffrey P posted a gallery image in Member Collections
From the album: Silurian
Eurypterus remipes Pair of Juvenile Eurypterids (Prosoma/abdomen/telson length- 2 3/4 inches) Upper Silurian Fiddler's Green Formation Phelps Waterlime Bertie Group Lang's Quarry Ilion, N.Y. Cleaned and trimmed by Al Lang-
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Happy birthday to me! Recently acquired this nice C. blumenbachii excavated in 19th C - early 20th C. by a Wren’s Nest quarryman when Wren’s Nest was active. Nice patina from 100+ years of being handled. Photos taken in sunlight & artificial light. The trilobite measures 50mm. Also attached - a nice paper “Legacy of the Locust - Dudley and its famous trilobite Calymene blumenbachii” detailing the history of this species. the trilobite was unique in that it was also featured on the town’s coat of arms. The specimen is ex John Page who was an avid collector of trilobites in the U.K .Legacy of the Locust Dudley & its famous trilobite Calymene blumenbachii.pdf
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Crinoid calyx or echinoid? Found in gravel with Ordovician-Devonian fossils. About 2cm across at the widest point. Druzy coating over the fossil which seems to be an external mould. In orange jasper. Thanks so much!
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From the album: Fossil Finds
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From the album: Fossil Finds
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From the album: Fossil Finds
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From the album: Fossil Finds
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Last weekend I took a trip to Buffalo and Rochester to do some fossil hunting in between visiting friends and family. This weekend may have been the best luck of the year so far and have accumulated to some of my favorite finds of all time. My first stop was at a location in the southern tier of Buffalo where I found some complete trilobites and pyritized gastropods and cephalopods. My second stop was in Rochester, I have a few places that I explore every now and then for Lockport Formation fluorite and calcite when I am in town for work. This time around I actually had better luck finding fossils, but I did manage to find one nice cluster of fluorite. If anyone has good resources or literature on identifying Lockport fm fossils please let me know! Finds from Buffalo: Recency bias, but this might be my favorite find in a long time; I have been looking for one of these forever as a complete. E. rana, with spotted camouflage patterns on the body of the trilobite. Hard to see pictured. These spotted trilobites have been reported in a few localities in WNY Middle Devonian strata. I saw a short article about it here: LINK TO ARTICLE Second lucky find is a complete Greenops boothi. The head is buried under the matrix and is poking out the other side. Doesn't photograph that well, but it came out in great condition luckily. I only have a few of these complete and this is by far the nicest one. Rusted pyrite, small Tornoceras uniangulare. Rusted gastropod fossil, have not looked into detail or species yet. Gastropod poking out of a pyrite nodule, really like this one. Rochester Finds: Dolomite replacing the outline of a gastropod Chain coral, my first find of this kind in New York. Dolomite replaced solitary horn coral. Bonus: I saw this fossil in the bedrock a few weeks ago in Livingston County. Anyone know what this could be? Edge of chisel for scale. Thanks for reading!
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I purchased this as a supposed Silurian Megalograptus from Yunnan a while back. The seller gave me additional information that it came from the Devonian Cuifengshan Formation in Qujing, Yunnan, China. However, the genus Megalograptus is Ordovician in age. I'm not really familiar with eurypterids, so maybe it's not even a sea scorpion. It certainly looks like some kind of invertebrate though. But maybe it's just indeterminate debris. Image 1 - Measurement is in millimeters. Image 2 Image 3 Image 4
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From the album: Pennsylvania Eurypterids
Salina Group.-
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Hello everyone, Recently I was kindly sent some fossils by @connorp from the Waldron Shale in St. Paul Indiana. One of these fossils was a piece of matrix which ended up separating due to some cracks, this revealed an interesting specimen that I am not too sure about the ID of. It is round, with rough surface texture and some fine patterns visible under magnification. To me, this appeared very similar to Lower Devonian Hindia sp. sponges I've found in NY, so I thought maybe it belonged to that genus. Looking into it the only sponge genus I can find from the Waldron is Astylospongia, and the specimens of this genus I've seen online look quite different from this example as although they're also round, but they appear to have different surface patterns and and an indentation on one side which I do not see here. I was wondering does anyone know what this may be? Is it a sponge like Hindia, a different species or preservation of Astylospongia or maybe not a sponge at all? Thank you for looking, and for any help. It is really appreciated. Misha
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I cleaned a few Eurypterids from the hunt last weekend and photographed, go look at my previous post if you wanna read more but here’s the Eurypterids.
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What kind of Fossils can you find by Fort Sheridan, Illinois
Joseph Fossil posted a topic in General Fossil Discussion
Hi everyone! I'm going on a fossil hunt soon to Fort Sheridan in Lake County Illinois and part of a college club trip! I know the area around Lake Michigan usually has lots of Silurian era (443-419 Million Years ago) fossils, some I'm wondering what kind of fossils can be found in that area? -
Hi, I recently found several small stromatoporoid fossils while hiking in an area of glacial kames, NE Illinois. The fossils I find here have been buried in silt, sand and clay for about a hundred thousand years, and they're sponges! But I love them! They're entirely silicified, vinegar, clr, and muriatic acid does nothing to them. They aren't in matrix, they're just very, VERY, dirty. I may have to accept some as they are, but was hoping a could do more for the ones that are less porous. Already soaked them in SIO and it did whiten them a bit. First pics are before SIO soak. I've been reading about oxalic acid, boiling, chlorine bleach, H2O2...not sure if anything else will work besides patience and a toothbrush... *Also, this is just a hobby so I don't have any equipment other than a dremel, some picks and wire brushes.
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From the album: Pennsylvania Eurypterids
Juvenile Parahughmilleria maria from the Lizard Creek member of the Shawangunk formation in Pennsyvania.-
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From the album: Pennsylvania Eurypterids
Dolichopterus undet. from upper Silurian waterlines in PA.-
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A member of our local rockhound club gave me this piece at the recent meeting. The only info she could provide is what's written on the label stuck to the bottom: Ball's Falls, Vineland, Ontario. Thankfully I have that particular bit of info. Can any of you Ontario folks fill me in on any of the other stuff? I gather from basic geo maps that it's from the Lockport Group (Silurian)... any way to determine the formation and which slice of the Silurian?
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Today I decided to go and visit a roadcut that I red on one of the Silurian literatures I got my hands on (a big thank you to those that led me to those PDFs relating to the geology of the Niagara Escarpment). It turns out the roadcut on the Niagara Escarpment is near my home which is a pleasant suprise to me, considering that I have been disappointed by the Queenston formation. This roadcut is actually several exposures that run on an access road that can lead one to the upper part of Hamilton, Ontario. Here is the exposure I decided to explore. I chose this exposure as the access is a busy boulevard with cars driving by with no sidewalks and pedestrians. I had several people honk and call out to me as I was exploring the site. Maybe I should have worn a safety vest of some sort? Is that even necessary?
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