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Showing results for tags 'elrathia'.
Found 17 results
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I decided to take a break from house work and the Hadrosaur pubis I'm working on, and prep my first trilobite. It comes from the Wheeler Shale. I'm pretty sure it's an Elrathia kinglii it's missing it's cheeks and some of its head. Here's how it started : And here is how it ended: All in all I'm pretty pleased with how it turned out. I used my Dremel to get close and then my blaster to take the rest of the matrix off. The only hiccup I had was right at the edge of the rock - some of the head blew off and was gone in the blink of an eye. After I was done I was looking at it under my scope, and lo and behold, there was another trilobite I'd totally missed near the cheek! It looks like a little 3mm agnostid trilobite. Luckily I didn't blow it off during prep. I have loads more bones and trilobites to just through, and look forward to showing you guys when I'm done.
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A rangeomorph holdfast trace fossil from the Ediacara formation, Rawnsley quartzite of the Flinders Range, South Australia. This specimen is Medusina mawsoni, so called because it was until recently thought to be a jellyfish, but is now believed to be the attachment point of a fractal rangeomorph as Charniodiscus is the point of anchorage for Charnia sp. This one may have been the holdfast point for some species of Rangea. The diameter of the outer circle is 1.5 cm and the fossil is estimated to be 555 million years old.
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- achlysopsis
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From the album: My collection in progress
Elrathia kingii Meek 1870 Location: Wheeler Formation, Utah, USA Age: 507 Mya (Wuliuan, Middle Cambrian) Measurements: 3x2 cm Kingdom: Animalia Phylum: Arthropoda Subphylum: Trilobitomorpha Class: Trilobita Order: Ptychopariida Suborder: Ptychopariina Family: Alokistocaridae -
Not just teeth and shells: my fossil collection also includes trilobites, the real protagonists of the Palaeozoic era. The first is a beautiful specimen of Morocops ovatus. Detail of the cephalon area:
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I have what I believe to be a small elrathia kingii (please correct me if I’m wrong). But it has a small, curious ”horn” of sorts. Can someone help me identify what I am looking at?
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From the album: Robs Fossil Collection
Elrathia kingii Trilobite Age: Cambrian. Location: House Range, Millard county, Utah, US Trilobite measures: 1 cm x 0.8 cm Plate measures: 5.5 cm x 5.5 cm -
From the album: Trilobites
From House Range, Millard County, Utah. Middle Cambrian Wheeler Formation. Thanks to Tony (ynot) for the trade! -
From the album: Trilobites
13x9x2cm. A nice plate from the Wheeler Shale, Middle Cambrian in the Antelope Range, Utah. -
Hey all, I bought this trilobite from a seller today and was wondering if anyone could help me ID it. I'm pretty sure its from Utah, and I think it's an Elrathia, but I just want to get some other thoughts or opinions. In the bottom left there seems to be part of an agnostid, but I could be wrong. The seller said that they didn't know where it came from unfortunately.
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Elrathia trilobites are very common, they're small, have no spines, and have a lot of preserved molts. On the other hand you have rare trilobites with spines covering its whole body or trilobites that exceed half a meter. These are not as common, but spines and size seem to be an evolutionary advantage. Why are the trilobites that seem to have the best chance of survival the rarest ones? Or is it just a marketing play?
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Question for the prep people out there. I have a handful of unprepped, but we’ll exposed Elrathia trilobites I’m hoping to clean up, but I don’t have any scribes or wire brushes. Are there any simple alternatives I can use to polish these guys? Cheers!
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Hello again, still going back through my neglected trilobites. This one I had labeled in my mind as Elrathia+ Agnostid fragment. After learning a little more about trilobite ontogeny (https://www.trilobites.info/ontogeny.htm) I wonder if the partial agnostid may rather be a larva of Elrathia? Or can I rule that out by size? I hope the "adult" is sufficient for scale comparison. The more you learn the less you know. Best Regards, J
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Hello I'm a newbie fossil collector (and newly active member) who happens to several interesting fossils for a decent price from our favorite auctions sites 1st is are Knightia. The seller claims that they are not restored or enhanced 2nd set are 4 Spinosaurus teeth. The seller claims that cracks have been repaired, but no restoration or composition has been made (Pictures 2-9 of teeth in pairs) 3rd is a Lycoptera which the seller claims is not restored or enhanced 4th are plates of Elrathia Trilobites from Wheeler Formation 5th are Fossil Ferns from Llewellyn Formation 6th is a Hyracodon jaw fragment I would like to ask if the sellers' description of the items are accurate and/or if they are restored, enhanced or composites. Cheers!
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I’m looking for a complete high quality Elrathia kingii still in matrix. If there are multiple on the same plate even better. I have a variety of fossils from the Chengjiang biota and several Devonian trilobites (Penn Dixie and Morocco) available for trade. PM if you’re interested! Thanks.
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Collected on a field trip to U-Dig Utah and prepared at the U-Dig site station. After a light mechanical brush exposed the shale, mineral oil was applied with another brush for a polished finish.
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From the album: General Gallery
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Hello Everyone! First off, I am excited to be part of this amazing forum! I am excited to be here and it is really cool to be part of a community where questions are open and people are so willing to help other out! I have never operated a forum before so this is a first for me and this is my first post in my first forum.... so needless to say I am a little excited! lol Please know that my writing style may change over time as I learn about writing in a forum and about posting my own work here on this forum. I am hopping to keep a relaxed, but professional forum running. I am hoping to also post at least once a week during the summer. Once I go back to school in the fall I hope to keep posting, but if it was like last semester, that may not be possible. I will post as much as I can though, that you have my guarantee! Last semester I took a paleobiology class here at the U of U. I throughly enjoyed it, I especially loved the invertebrate sections on cephalopod, arthropods, and the phylum echinodermata. I unfortunately only have a small selection of crinoid stems, so there is not much to post about there. I knew about ammonites (a cephalopod) and trilobites (an arthropod). I did not know much though. I new ammonites had a round shell that was coiled in on it's self and that was about it. I knew that trilobites got more complicated as they diversified and that they had 3 lobes, but that was it. Then I took the class and learned a whole lot about them! It was so much fun! What I learned about them is not the scope of this forum, if you want to know more about them I would recommend the text book we used. It is very good at explaining everything to inexperianced people (such as my self) and has lots of references for additional reading. The book is called "Bringing Fossils To Life An Introduction to Paleobiology" 3rd edition. It is quite a remarkable book. The fossils were collected in the House Range in Millard Country outside of Dugway Utah. I collected a few pounds of shale and it was quite full of trilobite fossils. The environment they lived in was a shallow marine environment. The matrix around the fossils is a beige color. I use a SE 979fSG Flexible Shaft Grinder, Chuck, Pedal, and Switch. You can pick one up from amazon for $70 or so. I also use steel saw blades for the Dremel tool and some steel brushes for it as well. I have other tools for the dremel but have not used them yet. I use these because I do not have access to any other tools for cutting stone. Please be safe while using this. I strongly recommend gloves, safety glasses, and a face mask to filter out dust, i would also recommend hearing protection. It can be loud at times. I also wear a white lab coat to keep dust off my and my cloths. For fossil identification I have been using a small guide to trilobites that my professor gave me. I looked on line for definitive trilobite's located in the Marjum Formation and was not successful. I do not claim to be a trilobite expert, and as such I may have made mistakes with their identification. If you feel I was wrong please feel free to let me know what you think they are! There are several samples that looked so much like they were Elrathia or Marjumia (these will be posted later) that I may have been wrong in my identification. All these fossils are from the Marjum formation and I found them so I know they are all real. So here are some pictures I took of them. If they are too small let me know and I will try to upload larger pictures. I have also labeled each so if people are talking about a specific one they can reference them exactly. B refers to bathyuriscis and the number corresponds to the order I took the pictures in. I will add other spices later and they will have a different letter abbreviation. I do have other bathyuriscus fossils pictures to post, I will add them later. Right now I just want to get started! B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17
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