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Showing results for tags 'Trilobite'.
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I am attaching images of Ordovician trilobites in my collection. I found the free, online Geological Survey Professional Paper 583-E to be very useful for identifying the Flexicalymene and Isotellus trilobites. Comments/suggestions/corrections are welcome. The 1st image is of Ordovician Flexicalymene meeki trilobites that I found in a creek bed in the Arnheim (sunset?) formation in Mt. Orab, Ohio. I identified these trilobites as F. meeki based on their relatively wide and sharp cephalons (heads). This is in contrast to the relatively narrow cephalons of F. retrorsa. The 2nd image is of a specimen collected on the same trip in the same same creek bed. The large fossil I have identified as the pygidium (tail) of the Isotellus maximus trilobite because it is not nearly as narrow and triangular as the pygidium of a I. gigantas trilobite. In the upper left is a prone flexicalymene trilobite that I have identified as an F. retrorsa due to the relatively narrow cephalon (compared to the body). If these identifications are correct then it is clear that all three species were contemporaneous. The third image is of a prone Flexicalymene retrorsa (my identification) trilobite from the Arnheim formation in Mt. Orab, Ohio. Note the relatively narrow cephalon (head). Image 4 is of a Isotellus maximus trilobite from the Ordovician Arnheim formation in Mt. Orab, Ohio. I identified this specimen based on the presence of genal spines on the cephalon as well as the relatively broad pygidium. Image 5 is of a larger, beat up Isotellus maximus trilobite from the Ordovician Arnheim formation in Mt. Orab, Ohio. I identified this specimen based on the presence of stubs of genal spines. Image 6 is of an Ordovician Cryptolithus instabilis trilobite from Buith Wells, Wales. I had previously found a small arc like fossil with perforations in Cincinnati and I had no idea about the source. I only recognized it after I saw the cephalon of the cryptolithus trilobite. This particular specimen has very little contrast with the bedrock so I altered the exposure and contrast in an effort to improve clarity. Image 7 is of a small, Ordovcian Amypxina bellatula trilobite from the Bellatula formation in Edgewood, MO. Image 8 is of a 505-438 MYA Diacalymene trilobite from the Ktaoua formation in Morocco.MtOrab.thumb.jpg.e888655c877a84663d5e37201303b43d.jpg)
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- Amypxina bellatula
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Hey guys new here, I found this a few days ago in west Texas and was hoping someone could help me out with an ID.. any help on this is greatly appreciated
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I visited the ROM in Toronto, during the Toronto trip. I’ll just let the images do the talking. Metaspriggina The wall of early spines. Sponges, and other things. A worm. Gogia.
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I recently bought this gem remopleurides (?) trilobite and I think it could definitely use some work. my question is, how the heck do I find someone to prep this thing for a normal price without destroying it! I live in NC so the closer to me the better!
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Hi! I wanna know about species of this chinese trilobite. it from guizhou Province, China. Could you kindly provide information on the specific species of Chinese trilobite?
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Hi! I have a trilobite that comes from Sweden. It is hard for me to classify its species. It from Cambrian, Andrarum, Skåne/Scania, Sweden What species of this trilobite?
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From the album: Trilobites
Taxonomy: Ceraurus sp (enrolled) Age: Ordovician - Katian (Verulam Formation) Location: Brechin, Canada Source: Field Collection Remarks: composite image of front and back. Lightly cleaned using baking soda and toothbrush.- 2 comments
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From the album: Mahantango Formation
Enrolled Dipleura dekayi Schuylkill County, Pennsylvania- 1 comment
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It’s from Hubei, China and no age is given other than Ordovician. Apologies for the blurry images, it’s been shipped to somewhere else for a bit.
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trilobite fragment. carboniferous oquirrh formation, utah.
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Hello everyone, I was wondering if it would be possible to prep Moroccan trilobites with my dremel 290 and ZoicPaleotech bits (and get decent results). I've been wanting to buy some unprepared specimens, but am unsure if I'd be able to do anything to them. Is there any particular matrixes or species you'd recommend? also, where would one aquire affordable, unprepared specimens? I'm not an expert fossil-prepper by any means (as you can tell by my current tools). Thanks in advance.
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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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Giant Cambrian trilobite - real or fake?
CuentoDeHadas posted a topic in Is It Real? How to Recognize Fossil Fabrications
I just bought this giant Cambrian trilobite fossil from a consignment shop that specializes more in carpets than in fossils. I am a beginner at fossils and didn't realize until after purchasing that this type of fossil is very frequently faked. Does any part of this look real to you all or does it look like a composite/ cast? I am particularly suspicious of the bottom left portion which looks carved to me, but again my knowledge is very limited so I am open to the possibility it is entirely fake. I did shine a UV light on it but am not exactly sure what I am supposed to be looking for there? Also, I am not sure if this is relevant but it has a strong rusty smell to it. If it is fake, I will reach out to my friends at the shop and see what my options are; I am one of their favorite customers haha as I have purchased a lot of high-ticket carpets from them, so I feel confident they will make me whole in one way or another.
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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.
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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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I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
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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
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So I have some questions for you guys. Could you please tell me what these are? 1. 2 3 4 5 6
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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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Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelgill (Skelghyll) in Cumbria, Northern England. It seems to be a tabulate coral, but I can't find any listed for this location, only mentions of small, rare, rugose corals. It has the star shaped corallites of a Heliolitidid, but seems to be tightly packed together like a Favositidid. A couple of species of Palaeofavosites seem to be close and are a bit star-shaped,, but anyone know any better? @TqB@piranha hmm who else? The coral bit, an external mold, is a maximum of 3.5 cm across and each corallite up to 2 mm.
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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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