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Xixia Amber (Gaogou Formation, 100.5-85.8 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
Amber Xixia Basin, Xixia County, Henan Province, China Gaogou Formation (100.5-85.8 Ma) Several droplet-shaped pieces, selected from the 10.1 gram lot. Prevalence, Inclusions, Botanical Source: Amber itself is quite common within the Xixia Basin, hosting China's largest amber reserves, but despite this is very rarely seen on the market. It has also been studied very little, mostly due to the fact that biological inclusions have not been known to occur in it. An araucarian source for this amber was determined based on chemical analysis. Geological Setting, Associated Fossils, Age: Amber occurs as lenses and droplets within the middle unit of the Gaogou Fm., in fine-grained sandstone which is non-marine in origin; the middle unit measures up to 440 meters thick, and also contains dinosaur egg and bone fossils, of at least 6 different genera: the presence of some of these species indicate an age of early Late Cretaceous. At other nearby amber sites (Wuliqiao Town) the presence of ostracod and bivalve fossils indicate a slightly younger age (middle to upper Late Cretaceous). Plant and pollen fossils are not known from the amber-bearing strata at Wuliqiao Town. Given the alluvial setting the amber is found in, and the absence of plant macrofossils in the matrix, I feel it may be possible that the amber was redeposited making it somewhat older than its host strata. Sources: "Terpenoid Compositions and Botanical Origins of Late Cretaceous and Miocene Amber from China"; PLoS One, 2014; Shi, Dutta, et al. "Dinosaur eggs and dinosaur egg-bearing deposits (Upper Cretaceous) of Henan Province, China: Occurrences, palaeoenvironments, taphonomy and preservation"; Progress in Natural Science, 2009; Liang, Wen, et al.© Kaegen Lau
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Xixia Amber (Gaogou Formation, 100.5-85.8 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
Amber Xixia Basin, Xixia County, Henan Province, China Gaogou Formation (100.5-85.8 Ma) Total Weight: 10.1 grams Overview: These pieces are all unwashed and still have an extremely fine layer of sediment; each has high clarity and rich color, many are naturally droplet-shaped, and individual measurements range from 1 to 8 millimeters in length. A few fragments of coal are also present within the lot. Prevalence, Inclusions, Botanical Source: Amber itself is quite common within the Xixia Basin, hosting China's largest amber reserves, but despite this is very rarely seen on the market. It has also been studied very little, mostly due to the fact that biological inclusions have not been known to occur in it. An araucarian source for this amber was determined based on chemical analysis. Geological Setting, Associated Fossils, Age: Amber occurs as lenses and droplets within the middle unit of the Gaogou Fm., in fine-grained sandstone which is non-marine in origin; the middle unit measures up to 440 meters thick, and also contains dinosaur egg and bone fossils, of at least 6 different genera: the presence of some of these species indicate an age of early Late Cretaceous. At other nearby amber sites (Wuliqiao Town) the presence of ostracod and bivalve fossils indicate a slightly younger age (middle to upper Late Cretaceous). Plant and pollen fossils are not known from the amber-bearing strata at Wuliqiao Town. Given the alluvial setting the amber is found in, and the absence of plant macrofossils in the matrix, I feel it may be possible that the amber was redeposited making it somewhat older than its host strata. Sources: "Terpenoid Compositions and Botanical Origins of Late Cretaceous and Miocene Amber from China"; PLoS One, 2014; Shi, Dutta, et al. "Dinosaur eggs and dinosaur egg-bearing deposits (Upper Cretaceous) of Henan Province, China: Occurrences, palaeoenvironments, taphonomy and preservation"; Progress in Natural Science, 2009; Liang, Wen, et al.© Kaegen Lau
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Nanxiong FormationHave Machairodus fossils been found from the Nanxiong Formation? Please tell me. Thanks in advance.
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Is this a Chinese dinosaur tooth? Please let me know and thanks in advance. Nanxiong Formation, Ganzhou city, Jiangxi province
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This pair of fossil birds is from Liaoning, China. Any idea what species is that?
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Is this a Zhuchengtyrannus tooth? I am currently looking for better photos from the seller. If the seller sends me a picture, I will post the picture. Production area information Xingezhuang Formation from the Wangshi Group, Zhucheng city, Shangdong, China
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Recently, I learned that Chinese fossils are prohibited by law from being transported outside of China.I have a question. Can I buy fossils that have been transported outside China before a law banning transportation outside China is enacted?
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Hello everyone, I recently came across some fossils posted on our favorite auction site described as Onychodont teeth from Yunnan, China. This immediately caught my eye and I decided to send in a very low offer, not expecting to even purchase or bid, just to see how much the seller might ask for a fossil like that. Surprisingly the offer was accepted, and after a few weeks this fossil arrived. It's a 3cm long tooth on a Limestone matrix with other fragmented remains from fish. I know that identifying Devonian fish teeth is something that is very difficult to do, so I am not expecting that it can be done with this specimen, but I wanted to know if there's any reason to believe it could've come from an Onychodont like the seller claimed. Additionally, I asked the seller where in Yunnan this was found and I was told it comes from Wuding County, I was wondering if by any chance anyone might know what formation this may have them come from, I looked it up and a number of fossils described from the Haikou Formation come up, although I couldn't find much more info on the formation itself to confirm if this could be the origin of the fossil. As always, thank you for reading and any assistance you may be able to offer.
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A seller as a precambrian fossil listed as Eoandromeda octobrachiata. Is it this species or is it something else. It comes from guizhou China.
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A well prepped keich? Must be fake.
JBkansas posted a topic in Is It Real? How to Recognize Fossil Fabrications
I haven't seen keichousaurus with hollows in the matrix like in this specimen (but they don't look like the bubble defects from a replica mold). I'm guessing it's real but I've never seen one without all of the prep damage that is typically present..thumb.jpg.f0dc8fbde9aa1f2428c7977aea627cf5.jpg)
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Keichosaurus real or fake?
sokastar05 posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, everyone. I am a first time poster. I received a Keichosaurus fossil as a gift. My grandfather purchased it many years ago in Alberta, Canada at a gem show. Could you please have a look at the pictures I took and let me know if you think this fossil is real or fake. Thank you kindly!
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I'm looking at purchising a fossil that is labeled anomalocarid. It's not super well preserved, but looks like part of an anomalcarid arm. Is it an anomalocarid or something else.
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"Exceptional preservation in this specimen includes a large bluish layer in the abdomen which represents one of the few occurrences of intestinal remnants among non-avian dinosaurs" https://www.nature.com/articles/s41598-022-24602-x
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- china
- daurlong wangi
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525-Million-Year-Old Fossil Solves Debate Over Brain Evolution
Oxytropidoceras posted a topic in Fossil News
525-Million-Year-Old Fossil Solves Debate Over Brain Evolution University of Arizona, November 25, 2022 https://scitechdaily.com/science-textbooks-wrong-525-million-year-old-fossil-defies-common-explanation-for-brain-evolution/ https://www.sciencedaily.com/releases/2022/11/221125132137.htm https://www.technologynetworks.com/neuroscience/news/525-million-year-old-fossil-solves-debate-over-brain-evolution-367879 The paywalled paper is: Nicholas J. Strausfeld, Xianguang Hou, Marcel E. Sayre, and Frank Hirth, 2022, The lower Cambrian lobopodian Cardiodictyon resolves the origin of euarthropod brains. Science, 378 (6622), pp. 905-909. 905 DOI: 10.1126/science.abn6264 https://www.science.org/doi/10.1126/science.abn6264 Yours, Paul H.-
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- cambrian
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This bone was found at Zhucheng, Shandong Province of China. Any idea if it is dionsaurian or mammalian? It looks like a toe bone.
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Harpes trilobite real?
Fissiletag posted a topic in Is It Real? How to Recognize Fossil Fabrications
Is this harpes trilobite real from China. Its from Yunnan. Also, if anyone knows the formation this could have come from it would be nice.
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Here is a small skull of a reptile, about 4cm in length, does it look like Macrocnemus fuyuanensis or is it a marine reptile? Note the very long and slender neck.
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Please show me your casts, replicas and fakes of Keichosaurus
FranzBernhard posted a topic in Is It Real? How to Recognize Fossil Fabrications
Quite regularly, questions turn up about the authenticity of Keichosaurus fossil specimens. Until now, most, if not all, were natural, but mostly just very poorly prepped. Would you like to show off "real" fakes, casts or replicas of Keichosaurus? I would like to get a feeling for them, at least from pics. If there already exists such a topic somewhere else in the forum, please put a link in this topic. Thank you very much! Franz Bernhard -
Manchurochelys manchoukuoensis fossil turtle
Blubby the blobfish posted a topic in Member Collections
Hi everyone! Its been a while since I posted. I was waiting for this new piece, arguably the most stunning and most certainly the rarest fossil in my collection. Here we have a Manchurochelys manchoukuoensis fossil from China, acquired from one of my good friends and fellow collectors here in the Netherlands. Now its extremely hard to certify the authenticity of a piece like this, however I can 100% say that all the bones are original. There has been some restoration done, these fossils never come out of the ground in one piece so it doesn't bother me. I tried to show you the minimal restoration on the last 2 photo's, its not noticeable with the naked eye, but I put it under the microscope to look at all the restored areas. I also looked at it under a good UV light to make sure it all matched up. I can confidently say that all the bones, and the entire turtle is authentic. I will have my geologist friend check it out one of these days to fully confirm authenticity, and the fact that restoration was done only where needed, and none of the bones are forged. Does anyone else here have one of these? Let me know!
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Here is a skull of Saurichthys from Yunnan, China with its mouth wide open, you can see there is a small fish at its mouth, look like the Saurichthys was eating the small fish. The small fish, half embedded in matrix, looks like a coelacanth by its tail, any idea if it is a coelacanth or a Gymnoichthys inopinatus?
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Fish got their jaws millions of years earlier than previously thought Meet the spiny, ancient Fanjingshania renovatais—likely the oldest discovered fish ancestor with jaws. Laura Baias, Live Science Ancient 'shark' from China is humans’ oldest jawed ancestor Palaeontologists discover a 439-million-year-old 'shark' that forces us to rethink the timeline of vertebrate evolution Chinese Academy of Sciences, Eureka Alert, October 3, 2022 The paper is: Andreev, P.S., Sansom, I.J., Li, Q., Zhao, W., Wang, J., Wang, C.C., Peng, L., Jia, L., Qiao, T. and Zhu, M., 2022. Spiny chondrichthyan from the lower Silurian of South China. Nature, 609(7929), pp.969-974. Yours, Paul H.
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- cartilaginous fishes
- china
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Hi all. As per request on my last post about the dinosaur eggs. Here is my fossil skeleton inside its matrix from Jiangxi, China. Bought it cheap, no clue what it is or what it could be. I can clearly see a skull, and what appears to be a claw or a hand. Nothing to see on the other side, I assume the rest of the skeleton is inside the matrix. Any help wil be appreciated, but I have let alot of knowledgable people look at it and no one was able to give me anything clear.
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Hi people! Thanks to all the nice people here I wanted to share the pictures of some of my fossils. I wanted to start with what is currently my proudest and most expensive piece, my 3 egg hadrosaur nest from China. These are not crazy rare, also not museum quality but it was my first show piece that I bought and have been enjoying it everyday. Owning a piece of history, a nest of a creature that lived millions of years ago still makes me happy when I think about it. The eggshell and color on these is super nice compared to most I see at auctions. Let me know what you all think.
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Phosphatized Tortoise Fossil
Crazyhen posted a topic in Is It Real? How to Recognize Fossil Fabrications
This is a tortoise fossil from Hezheng, China. Unlike the other white coloured tortoise fossils, it's black in colour. Is it painted or naturally black in colour due to phosphatization?
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