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Showing results for tags 'cephalon'.
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I bought a large box or various fossils that I believe were part of someone's estate off of an online auction site. This is a portion of trilobite and unfortunately there was no label to go with it. Hopefully there is enough detail in the picture for someone to narrow it down a bit. Let me know if better pictures are needed or a close up of the eyes.or something else. Thanks
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Most complete Bufoceraurus cephalon found and donated 4/23
fossilized6s posted a topic in Partners in Paleontology - Member Contributions to Science
Haven't been on here in years, but i figured you guys would enjoy this. I was lucky enough to find the most complete Bufoceraurus cephalon of this species ever found and donated it to Gerald Kloc for prep and description. I can't wait to see it prepped! It's from the Platteville formation, WI.
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I was wondering what kind of minerals would make this cephalon from my collection have this color.
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From the album: Missouri Trilobites
These last few months have been very generous with its fossil output so far. This specimen's head is about 7.5mm long and is what I consider to be very rare. I have only ever found 2 heads in the upper Winterset limestone. In the future, I plan to clean it up a bit, but for now, he stands with his glabella exposed.-
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I split out what looked like a promising Ameura trilobite a day ago. After the split, I took the plate home to use a rotary tool to trim the matrix down. Then I used a sewing needle to do some detail work. It turned out not to be complete, as it's right cheek is missing. This specimen would have been around 3 inches if all there, maybe next time!
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Found this today in the Platteville formation, SW Wisconsin. In the Mifflin member specifically. From what I see, it looks like a trilobite cephalon? I'm thinking Thaleops ovata. (Cap for scale)
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Trilobite cephalon? Brachiopod? Devonian find from the Milwaukee formation
SilurianSalamander posted a topic in Fossil ID
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From the album: Fossildude's Middle Devonian Fossils
Crushed cephalon of what I am assuming is a Pseudodechenella trilobite. Found in July, 2020. Smoke Creek, West Seneca, NY. Hamilton Group Middle Devonian© 2021 Tim Jones
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Hello again everyone, sorry for the delay between Part 1 and Part 2. I went through some more material from DSR and I've made some pretty awesome finds. I might have enough specimens for a Part 3, but I still have to go through more material. The same goes for the Penn Dixie part, I've barely touched it yet and still need to photograph the finds. To kick Part 2 off, here is my best DSR find yet! A nearly complete (unfortunately disarticulated) Echinocaris punctata!!! My kitten Indy for scale The Echinocaris has one of the spikes on its tail visible, and both valves are present. Another Phyllocarid, a Rhinocaris columbina! The reverse side shows another half, possibly from the same Rhinocaris? This cute little cephalon is one of my first Eldredgeops finds at DSR. Here's the Dipleura heads I've found so far (excluding the one from the previous trip report), This one is one of the largest I've found yet, it's 3 inches wide! This cephalon was a real heartbreaker. The other half of it was stuck under 1 1/2 - 2 feet of overburden This one is upside down I think this is a juvenile Dipleura cephalon, but I'm not 100% sure. I'll have to clean it up to be sure. Now onto the misc finds This is one of the largest Goniatites(?) I've found here, it popped out of the matrix on the way home but it should be able to be glued back. I feel like the cone shaped fossil in the center of the piece might be a Hyolith, but I don't know for sure. A lone crinoid stem, it'd be cool to see what it looks like when prepped. Not sure what kind of fossil this is, possibly a devonian putty scraper? Here's some Brachs and Bivalves from DSR, I'm not 100% sure on the ID's so if I'm wrong please correct me on it. Goniophora chemungensis? Paraspirifer acuminatus? Mucrospirifer consobrinus? Big jumble of brachs (maybe some Bivalves too?), cool golden sheen on it. I don't think it's pyritization. Assorted brachs Devonochetes coronatus? This is on the back of the possible Hyolith piece shown above. M. mucronatus? Large brachiopod and bivalve hash plate Probably the biggest Bivalve I've ever seen, let alone found. ID unknown Orthonota undulata
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Hi again! Found this trilobite cephalon today with what looks like a pygidium under the glabella. Not sure of the species yet, is this a pygidium that got preserved under the glabella or is this possibly the internal structure?
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Hi, I found this cephalon in 2010 at the Buchava site in Czech and would like to know more about it (Ptychoparioides ...?). I hope you can help me to identify. thanks in advance, Mark van Smaalen Wageningen, the Netherlands
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I was going through some rocks I found last year and came across this tiny cephalon I never noticed before. I believe this is Ft Atkinson formation , Ordovician. Cephalon measures only 1mm and is covered in tubercles. I'm wondering because of size would this be considered protaspid? Any help with ID appreciated.
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Found this one in Bowmanville (Mid Ordovician, Cobourg? Formation) last weekend. My best guess is Thaleops laurentiana cephalon but id like to have a better idea what it is before I attempt any more prep. Have not tried yet but probing with air abrasion looks like it will be difficult since the matrix is full of calcite or some other crystals. @Malcolmt @Kane @Northern Sharks
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Psuedogygites Latimarginatus Cephalon (ventral)
fossilzz posted a gallery image in Member Collections
From the album: Finds From the Ordovician -488 to 443 MYA-
From the Collingwood member of the Lindsay (Cobourg) Fm. -
Still just finding bits. Two pygidia in one piece, and a small cephalon. This entire area must have been a shell pile like you see at the beach today. You know, the ones you have to walk around when bare footed. Nothing but shells, bits n' pieces. Cheers.
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Hi folks. I cracked into some very nice bryozoans today. Mostly the fenestella (?) and also see this item that looks like the upturned nose of a dipleura. Do you see the same ? Will post some pics of the bryozoans in the general section. Thanks.
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What a haul! Rare goodies from the St. Leon roadcut, Indiana. (Trilobites!)
FossilSniper posted a topic in Fossil Hunting Trips
About a month ago, I headed out on two fossil trips to the well-known St. Leon roadcut in Indiana. I was hunting in the Liberty formation (late Ordovician) with the sole goal of finding some nice trilobites (which I definitely achieved!). Along with multiple rare trilobites, I was able to find some excellent examples of other fossils. The spoils were totally awesome, and I am itching to go back. I hope you enjoy. Best for last. -
What does it mean for a fossil to be "inflated"?
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From the album: Adam's Cambrian
Agnostid Trilobite Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Agnostida Family: Ptychagnostidae Genus: Ptychagnostus Species: gibbus Author Citation Linnarsson 1869 Geological Time Scale Eon: Phanerozoic Era: Paleozoic Period: Cambrian Epoch: Middle Stratigraphy St Davids Sediments Biostratigraphy Paradoxides Series Provenance Acquired by: Purchase/Trade Location Road cutting, 300 m S.W. of Cement works. Slammerstad, Oslo Norway Listed as St.David's, Paradoxides Series. About 505 million years old. -
Here's one of the head shields from the same location , which I don't think has any relation to the previously posted spiny pygidium ... This is the only type of cephalon I've recovered from that spot.
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Hi folks. At first glance, I labeled this cephalon an Eldredgeops but it doesn't compare well with other examples in the area behind the eye where the "dimples" are. There is also a sort of "horn" projecting from the upper rear portion of the eye. Just not certain about this one. Could just be deformation ? Then the nice size greenops pygidium. Wow, I'd love to find a complete one this size ! Thanks, Regards.
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Hi folks. Unlucky break, I hate it when that happens ! This chunk broke out in a bad way. I'm pretty sure it is a portion of a trilobite cephalon but it doesn't look like the other eldredgeops that I've found here. Not certain which is fwd or rwd, but the taper of the "center section" appears to be in the wrong direction compared to my other specimens. Perhaps it is squashed/deformed a bit ? Something just doesn't look right about it to me. Any clarification would be appreciated. Thanks.
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Hi folks, just back from vacation. Realizing more what to look for, I found 5 more pygidia today as well as this little beauty which was in a piece of shale beside the road at the end of my driveway. I picked it up on my way back from the mailbox as it looked promising. This is trilobite (bit) #15 and replaces #7 as my new favorite. I really dig those eyes ! Just one eye was exposed and there was plenty of matrix there to contain the entire trilobite, but sadly after taking great care (and time) to scratch down to the body, there was only a cephalon. I was so hoping this was a complete one. Will keep looking, and hoping. Thanks for looking, Cheers.
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Beginning to recognize more of the minor details. A small portion of the eye was protruding from the surface a fresh split. A bit of scratching under the microscope revealed my favorite so far. I call it #7. OK, ...... I'm hooked ! Thanks again folks.
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The fossil(s) in question here were collected during the summer of 2016 from the Liston Creek Limestone (Silurian) in northern Indiana. I am using them for my senior thesis project in which I'll be comparing Ordovician trilobites with Silurian Trilobites. Anyways, I have been taking a scientific illustration class during the month of May and for my final project I decided to do a stippled illustration of one of the Cheirurus cephalons I collected in 2016 (in total i have about 7 cephalons of varying sizes, all with identical morphological characteristics). I've been trying to narrow this particular specimen down to the species level since I plan include the binomial nomenclature on my final illustration. After a days worth of researching I'm still unable to confidently identify the specimen at the species level. The literature I have on the rock formation this specimen comes from lists Cheirurus niagarensis among the common fauna. From what I've seen online, I don't think my specimen is C. niagarensis. Two other possibilities I've noted are; C. infensus, and C. insignis... So far those are the only 3 Cheirurus species that resemble my specimen the closest, but I'm still not confident in any one of them in particular. As fossil ID information is notoriously hard to find on the internet I've decided to post some pics of my specimen on here to see if anyone can help me to ID it. The first 5 pics are of the specimen I'm using for my illustration. The 6th picture is of the previously mentioned specimen (right) and a larger specimen (left).
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