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Showing results for tags 'cambrian'.
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Fossilied musculature of an early Cambrian cycloneuralian animal
Oxytropidoceras posted a topic in Fossil News
Early Cambrian microfossils preserve introvert musculature of cycloneuralians The open access paper is: Zhang, H., Xiao, S., Eriksson, M.E., Duan, B. and Maas, A., 2023. Musculature of an Early Cambrian cycloneuralian animal. Proceedings of the Royal Society B, 290(2008), p.20231803. Yours, Paul H. -
From the album: Kinzers Formation.
Kinzers formation, Lower member.-
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- cambrian
- kinzers formation
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From the album: Kinzers Formation.
Kinzers formation, Lower member.-
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- cambrian
- kinzers formation
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From the album: Kinzers Formation.
Kinzers formation, Lower member.-
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- cambrian
- kinzers formation
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From the album: Kinzers Formation.
Kinzers formation, Lower member.-
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- cambrian
- kinzers formation
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From the album: Kinzers Formation.
Kinzers formation, Lower member.-
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- cambrian
- kinzers formation
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From the album: Kinzers Formation.
Kinzers formation, Lower member. -
From the album: Kinzers Formation.
Kinzers formation, Lower member. -
From the album: Kinzers Formation.
Kinzers formation, Lower member. -
Hello everyone! I am absolutely thrilled to be joining this incredible community today. I have some truly magnificent treasures to share with all of you—rocks adorned with glorious minerals and draped in the captivating intrigue of ancient fossils. These specimens are exquisitely unique and boast an air of unparalleled rarity. Allow me to transport you to the picturesque landscapes of the Lake District, specifically the renowned Coniston Copper Mines. As you may well know, this enchanting locale has long been celebrated for its impressive array of fossils. It was amidst this breathtaking backdrop that I stumbled upon these extraordinary finds. Now here's where things get even more fascinating. While I've done my best to unravel the mysteries surrounding these specimens, there are a few that have proven quite elusive. But fear not! I firmly believe that with the collective wisdom and expertise of this esteemed community, we can crack these enigmas wide open. Together, we can identify these enigmatic pieces and pave the way for their thorough examination and potential research by distinguished experts in the field. So, I implore you to join me on this captivating journey—to unlock the secrets hidden within these remarkable rocks and fossils. Your insights and contributions will be invaluable in unraveling their mysteries and ultimately pushing the boundaries of our understanding.
- 8 replies
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- ancient marine life
- cambrian
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This was in a box that was labeled trilobites from what was labeled Providence Mt in California. But to me does not look like a trilobite.
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I visited the Quincy spot again, still with meagre finds but some were half-decent. I of course found some more disarticulated thoracic segments but they’re not worth posting, I found too many. Agraulid bits? The cranidium is probably a very badly preserved Skehanos quadrangularis. Some Paradoxides harlani bits, the cheek is weird because the genal spine is somewhat stubby. A very nice cranidium, and a nice size too, ~11 cm between the palpebral lobes, 7 cm from the anterior border to the occipital lobe. A pretty large section of thorax, with seven lobes. A little buddy. It was nice, but the rocks are very fragmented so there is almost no chance for a complete specimen.
- 4 replies
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- braintree argillite
- cambrian
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I bought this fossil about a year ago and have had it sitting in my display cabinet front and center. It was sold to me as Vetulicola, it came from the Chiungchussu formation in Chengjiang, China. I was wondering if this is actually a Vetulicola species or a similar animal from the formation. It is right at 1cm in length, and the details seem pretty good up close. If it is Vetulicola, is it possible to assign a species to this specimen? Any help would be appreciated!
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So, I will admit, I am severely uneducated when it comes to trilobites, but I’d love to learn more about them — the different species, what’s rare, what’s common, formations they’re found in, etc. I don’t have any in my collection yet, and I’d like to change that. Any recommendations where I could start my learning? Books, articles, papers, anything is appreciated.
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I went hunting to the kinzer formation (cambrian) from a suggestion of a member here (thanks very much for that), and hunted for around two hours in the shale. Nothing I found screamed trilobite (my target fossil) but I did come back with a few interesting looking rocks. I'm not too familiar with the paleofauna here, so I'm putting most of my finds up here so you guys can tell me what fossils I've found (or lack there of).
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Hi, I have this trilobite labelled as a Proetida. Also I was told it is 485-251 myo is this also right? Finally is it Moroccan if so I assume Atlas mountains? Thank you for your time!
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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.
- 177 replies
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- achlysopsis
- acorn worm
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Today I went back to the spoil piles at Quincy, with some better luck, and weather. I brought bug spray, which helped very much. I’m afraid this gives away too much about the site, but it was a very nice view. A picture of the site. The leaves were quite annoying. Some slickensides and a vug of pyrite which I did not keep, but were cool. On to the finds. I started out in the first few minutes with a lovely Paradoxides harlani left cheek. The rock is not tiny. Some fragments of pleurae. Some hypostomes, showing excellent “terrace lines”. A cephalic doublure, with half of a hypostome. Another more complete doublure. The cephalon might be there, but chances are slim. Some fragments of Skehanos quadrangularis. A cranidium and a heartbreaker thorax fragment. I wish that I had got there sooner, it would have been an awesome bug. A very badly preserved external mould of a Condylopyge eli. Still another species from this site, so I can’t complain. Now for the better finds of this trip. A really nice section of thorax, considering how fragmented this rock is. Four segments, it’s really the best one can expect from here. Not too shabby in terms of size, either. A really nice cephalon, if it were the positive. This one was really a shame, nicely sized too. And lastly, a decently preserved partial cranidium! Nice size, shell, definition, and… …there is a partial brachiopod on the side! I don’t think brachiopods have ever been recorded, or at least discussed from here. Something I never thought I would have found. Overall it was quite fun, I found some better material, and I will definitely return.
- 9 replies
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- braintree argillite
- cambrian
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I've been sorting out my old collection and came across this, a slab of Lingulella davisii (M'Coy) from North Wales, near Porthmadog. It's from the Ffestiniog Formation, near the top of the Cambrian. I'm sure there's lots of it around but there don't seem to be many pics when I search, apart from in this paper: https://www.jstor.org/stable/pdf/1306865.pdf
- 12 replies
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- brachiopod
- Cambrian
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From an old collection we got this strange Trilobite. I think it was found and imported to Germany around 1980 - 1985. Should come from Yunnan-Province in China (I only know it comes from china, did some research in the net and think it is a Yunnan-one). Lenght is around 18 cm (7"). Has short spines at the end of the pleural segments. The cephalon has been badly prepared, surface is a bit destroyed but the rim fits. Pygidum looks rounded, but under a microscope I could see, the end is not prepped and under the surface. Will do the work on it next time... What do you think about the genus? Before I start the prep-work I love to know if it has spiny ends, Looks not easy to prep... thanks for comments!
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Found in spoil piles originating from the Hayward Quarry in Quincy, Massachusetts. Perhaps oxidised limonite burrow? Could the thing I circled be a poorly exposed Paradoxides cranidium? Burrow-like object is 2.2 in. or 5.6 cm. Braintree Argillite.
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I found these two cranidiums in the spoil piles at Quincy, Massachusetts, USA. The one on the right is weirdly rectangular. Broken or not fully exposed Braintreella? The one on the left looks similar. “Agraulos” quadrangularis? Braintree Fm.
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Today I decided to try my luck at Hoppin Hill. It was a bit too sunny, but otherwise good weather. The fossils mostly found are the small shelly fossils. I spent a good first hour and a half wasting my time on the extremely sparsely fossiliferous basal quartzite and grey argillite, on the west side of the inlet of the reservoir. I found a couple of ichnofossils, but not anything else. With little luck and half an hour left, I found the red slates on the east side of the exposure. The following are my meagre finds. Conotheca mammilata(?) Some extremely fragmentary trilobite bits. And lastly, a partial cranidium of Strenuella strenua. I will hopefully find some better stuff now that I know where the good outcrops are.
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- cambrian
- hoppin hill
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Hiya everyone I bought a small collection of trilobites last week. most are labelled, except these 3. They're Moroccan, and my guess would be Cambrian or Ordovician.
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Hi, Can someone shed some insight into what this could be? They are from the Guanshan biota (Cambrian Wulongqing Formation, Yunnan, China). 5-6cm. My first thoughts were a Vetulicolian "head", but if the tail was lost I see no sign of previous attachment. It has a smooth, unbroken border all-around.
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