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Hello everyone! I'm heading to St. Louis to observe the Solar Eclipse this week, which is likely to be clouded out. I'm trying to salvage the trip by looking for Trilobite fossils as I have read they can be plentiful in this area. Can anyone share tips on what to look for as far as formations? I think my best bet is to look for rock cuts on the highways in the area. Any help and even general locations to search are much appreciated. Thank you!
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Howdy folks! I’ve had a lot going on so I haven’t been super active on here as of late, but I wanted to do a little recap of some of my favorite finds and acquisitions of 2023. Hope yall enjoy! Thanks for looking! First up is by far my favorite find from last year. This bug was collected as a ventral specimen in February, and was flipped and prepped dorsally by Jon Ginouves. Hypodicranotus striatulus is an exceptionally rare species from the Middle Ordovician Trenton Group of NY and equivalent strata in Canada. This is the first NY specimen I have ever seen or heard of coming out of strata outside of the Walcott-Rust Quarry. Up next is another piece from the same locality as the Hypodicranotus. I believe this came out of the site in the late spring or early summer. Generally, juvenile Gravicalymene magnotuberculata are near impossible to find, but I stumbled upon a mass plate containing around 20-25 specimens ranging from prone to fully enrolled. It is entirely possible that this is the largest cluster of this species ever collected, which is pretty sweet. This pic doesn’t show the whole plate, but you can get the general idea of how plentiful the trilobites are! This next specimen is just a cephalon, but it is from the iconic and very rare Walcott-Rust Quarry trilobite species Sphaerocoryphe robusta. This was found when I visited the locality in June with @KompsFossilsNMinerals . Normally I only focus on trilobites while collecting, but this past October I made a couple short visits to a Fiddlers Green Formation eurypterid site very close to my college campus. Eurypterid material is very sparse, but I did find some pretty interesting pieces. The most exciting of these was a partial Dolichopterus macrocheirus specimen showing the prosoma, 2 tergites and most of the appendages. Along with the usual trilobite suspects, I also ventured into some new territory strata-wise. I was able to visit an Onondaga Limestone locality several times during the summer and fall where I found half a dozen or so Odontocephalus selenurus specimens. Through my work in the Tully Limestone, I have become good friends with Steven Mize, who primarily collects the unit’s trilobite species. He invited me to come collect the Tully with him in July, which is when he gave me this beautiful enrolled specimen of an undescribed Basidechenella sp. While out collecting, Steve found this plate of 6-8 undescribed Asteropygine sp. , which he was kind enough to let me keep! During this past fall, I became very interested in the various Cambrian biotas of China. Here are a couple of Radiodont appendages I acquired. I believe the first one is Guanshancaris kunmingensis, and the second is Anomalocaris saron. This is my favorite trilobite I acquired from China. Although it is only a partial, this Redlichia mansuyi from the Guanshan biota exhibits one of its robust antennae!
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I saw a post on facebook that someone was looking to get rid of some fossils they had collected locally so I arranged to meet up this afternoon. Most of what was being offered were carboniferous fossil ferns from St Clair and they had some beautiful examples from the site that has been closed to collecting for several years now.
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I recently went on a trip to southern New Mexico. I made it out to Apache Hill, near the ghost town of Lake Valley and did some fossil hunting in the Carboniferous deposits there. The fossils are in the Mississippian Lake Valley Limestone. Here is a little history about the site: https://geoinfo.nmt.edu/tour/landmarks/lake_valley/home.html I found a lot of stuff, but a few fragments have baffled me. There are supposed to be trilobites found there and I was wondering if anyone could help me identify these remains, trilobite parts or crushed shells? May be difficult as they are just fragments, but any help is greatly appreciated. 1.2.2 2.3 3. 4. 5.
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Last weekend I had the opportunity to spend a few hours collecting in a quarry in northern Illinois that exposes most of the Galena Group (Late Ordovician). There was lots of fresh rock to hunt through, and it was a good and productive trip. As usual, lots of gastropod molds were found. Hormotoma sp. Liospira sp. Sinuites sp. Lophospira sp. Subulites sp. Unknown gastropod. Looks like Liospira but appears to curl in the opposite direction. Brachiopods show up too. Most common are molds of what I believe are Rafinesquina (@Tidgy's Dad?). The inarticulate Pseudolingula iowensis is somewhat common. Specimens are almost always crushed and missing shell, but they usually have some shell preservation which contrasts nicely with the yellow matrix. Occasional bivalve molds are found. This one has calcite? crystals. Trilobite parts are uncommon, and the only species I've seen from this quarry is Thaleops, possibly Thaleops laurentiana. Here is a cephalon I found. Now for my favorite finds of the day. A partial specimen of the small receptaculitid Ischadites iowensis. Fisherites is very common at this site, but I had not come across Ischadites before. A partial conulariid. Judging by the visible cross section, the back side is present, so this should hopefully prep out nicely. And finally, what might end up being a complete trilobite. Not sure if there is any more buried, but it does look like at least some of the shell is preserved, so fingers crossed!
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Quick Stops throughout Canada-NY, Focusing on Toronto
Isotelus2883 posted a topic in Fossil Hunting Trips
This week, I had an opportunity to make some very quick (>30 min) stops along the way to a conference in Toronto, and on the way back. 1. The first stop was in Montreal, pretty close to the hotel. It was an exposure of the Tétreauville Formation. A 20 minute stop, coupled with the fact that even fragments of shale had to be pried out of the frozen ground, and that the shale was mostly empty, made this not the most productive stop. I did manage, however, to find some trilobite fragments. Starting with some small shell-less Sowerbyella sp. And of course trilobite bits, negatives, of course because my luck is just like that. Flexicalymene senaria Cheiruridae indet.- 5 replies
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Hi everyone! I visited an exposure of the Milwaukee formation within Milwaukee city, Wisconsin this weekend. Found lots of brachiopods, corals and bryozoans, and brought some rocks home. Then today I decided to smack some of them with a hammer - and this trilobite pygidium emerged out of nowhere. I don’t know a lot about inverts - can anyone help with the ID please, if it’s identifiable at all? I’m pretty sure it is from the Lindwurm member of the Milwaukee formation (Givetian - Middle Devonian). Thanks!
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Aglaocrinus crinoid? and tiny trilobite pygium
Bonehunter posted a topic in General Fossil Discussion
Hi all! Very excited to find this crinoid on the very edge of a cliff and cleaned it just a little to reveal this tiny 4mm wide trilobite pygium right next to it. Using Missourian's key, I think the crinoid is Aglaocrinus ? The trilobite doesn't look exactly like the pygidiums I have of Ameura so not sure on that one - thoughts? Am I close? Should I try to clean more of the crinoid? The piece is only another inch or two thick. Thanks for any help!! Bone -
Hello, Found this cephalon in Lucas County Ohio. It looks pretty good, both eyes, etc. It would however be a significant prep job, gluing and coming in, then from the top), I would have to pay for. I'm thinking it is worth it as this seems rare. Please help me guage this. There is more of this lens to explore, so I may wait to see if I find a better specimen. Thanks
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Which order does it belong to? He came from Morocco. I'm a teacher (though not a science teacher) and he's sort of a class pet and we want to know more about him. Thanks. https://1drv.ms/v/s!AmuFEBQuZwjm0xzvQQf17GbPGb6L 3D video of trilobite here Trilobite 3D video.MOV
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Legal places to find Trilobites or Ammonites in California?
kwic13 posted a topic in Fossil Hunting Trips
Hello! My first post here. I was just wondering if anyone knew of specific locals in order to find ammonites or trilobites in California? I found the website below somewhat useful, and have googled some of the locals on this area that have slightly pinpointed more specific areas, but I do know that sometimes fossils are only present on one part of one exposed cliff, and whatnot, and if I am going to go through the middle of nowhere, I don't want to not see fossils. http://www.fossilspot.com/STATES/CA.HTM Anyways, I haven't quite chosen my road trip route yet, but I will start in Calexico, CA and end in San Francisco, CA. I will likely go to the Chocolate Mountains, up to Blythe, CA, then across the Mojave to Bakersfield, CA (passing by the Trilobite Wilderness), then through the Carrizo Plains, and then up to Pinnacles NP, and then hopefully end up in San Francisco. If anyone knows a spot that isn't too inaccessible (I will have a 4WD), please let me know! Thank you.- 1 reply
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A nice Dictyonema flabelliforme dendroid graptolite from Oslo Fields in Norway. It's Tremadoc, Lower Ordovician in age and is thus maybe around 480 mya. Another angle :
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Hi, as promised this is part two of my fossil collection. 1. Trilobite. (Bought) 2. Orthoceras (bought) 3. Knightia (bought) 4. Ichthyosaur vertebrae (bought ) Soon I’ll post part three.
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On a trip with some friends to an exposure of middle Devonian strata recently we found some pretty unique Mahatango fauna. I thought I’d share one of the specimens here that I recently prepped for my good friend Gavin May! The specimen below is a complete for the most part prone example of a very rare trilobite, Basidechnella kayseri. It was prepped with a air scribe, I still have to do a bit of landscaping too.
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I shared a few of the bigger things I found when asking questions. But thought I'd share some of the other finds. I have find a lot of little and mini trilobites thought was interesting. Smallest 1mm. #1 #2 #2(closer) #3 #4 #5 #6(smallest) #6(closer)
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Hi! I wanna know about species of onnia.. I think it is Onnia seunesi or Onnia superba, but i don't know exactly. What is this??
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From the album: Mahatango Formation
Perry county, Montebello member,-
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- greenops boothi
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Okay so I found this specimen at the Taughannock Falls in Ithaca New York. I found it at the edge of the gorge which consists of shale, composed of slit and clay that fell onto lime mud and hardened into rock. I've done some research and it appears to be a Brittle star trace fossil formed by their arm grazing the sand floor. Although, these Brittle Star fish traces are known as "Pteridichnites biseriatus" and they have only been discovered so far in upper Devonian shales out in western and eastern Virginia. I'm not an expert but to my knowledge the Ithaca geological formation is Devonian and was slowly covered by sand. Is it possible that the Brittle Star fish once roamed in the ancient sea now known as "Taughannock falls" today? Because a research team is trying to find this specimen and they are wondering if anyone has discovered it. Edit: Im referring to the dotted trackway. check this link out for more information. http://www.wvgs.wvnet.edu/www/news/Pteridichnites.htm
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I found this actually beautiful Erbenochile in a European auction house. However, I think all the little spines on the pleural lobes and cheek spines aren't real. What do you think about that?
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Please help me to classify species of asaphida(maybe Nileidae?) trilobites plate
syl1219s posted a topic in Fossil ID
Hi! I wanna classify about this trilobites plate. It from morocco. I think It is maybe Nileidae? please help me to classify this trilobites genus and species! Size of trilobites is 3.5~6cm. -
I have a partial trilobite cephalon that I collected from the Waldron Shale spoils piles at Falls of the Ohio State Park. Since it is not directly from the quarry wall, there is some uncertainty in the stratigraphy, but it is likely Waldron or the overlying Louisville Ls. both of which are right near the border between Lower and Upper Silurian. Hopefully there is enough here to give a shot at an ID. The best I can do is say it could be Metopolichas breviceps but there appear to be some differences. Hopefully someone like @Kane or @piranha or @Ken K can see enough here to have an opinion. If not, "Trilobite Head" it will be called. Thanks for any help. Here it is enhanced a bit hopefully so you can see it better. You can see by the scale that it is under 1 cm wide. My stab at an ID initially came from Halls 1879 publication on the Waldron. Below I have my specimen between the figure out of Hall (on the right) and an example of one from the American Museum of Natural History website (left). The AMNH site says this specimen is the only known complete example which just adds to my doubt on the ID, but I have not found a more common, better match. And lastly, here is a zoom in of the cephalon to hopefully show the small bumps covering it. Thanks again for any help.
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From the album: Nautiloid’s Trilobite Collection
A nice example of B. lucasensis from the Middle Devonian Silica Shale of Ohio. I've been looking for one of these for a while!- 1 comment
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From the album: Mahantango Formation
Greenops boothi Schuylkill County, Pennsylvania-
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Hello to all. The Acastella trilobite from my own collection. Well preserved. I tried to get close-ups of the eyes and some small details. Place of discovery: outskirts of the city of Kamenets-Podolsky, Khmelnitsky region of Ukraine. It was not possible to determine the exact age (Silurian or Devonian). Have a nice day 1.mp4 3.mp4 4.mp4