Wrangellian Posted June 7, 2019 Share Posted June 7, 2019 A couple of each of these also: Coronocephalus gaoluoensis Silurian - Wenlockian? (what formation?) Mtns of western Hunan, China Ductina vietnamica + styliolinids M. Dev. - Eifelian Nandan Fm (what town?), Hunan, China I thought these were one of the last Phacopids, Famennian age, but apparently they are Eifelian so they must be about coeval with the other Phacopids like Eldredgeops etc..? I think this is the extent of my Chinese bugs. Link to comment Share on other sites More sharing options...
Wrangellian Posted June 7, 2019 Share Posted June 7, 2019 Here's a closer shot of one of the Ductinas showing the styliolinids better: 3 Link to comment Share on other sites More sharing options...
Sinopaleus Posted June 7, 2019 Author Share Posted June 7, 2019 On 6/7/2019 at 2:19 AM, Wrangellian said: Here's a closer shot of one of the Ductinas showing the styliolinids better: Great fossils! That's a great Ductina specimen Link to comment Share on other sites More sharing options...
Sinopaleus Posted June 7, 2019 Author Share Posted June 7, 2019 22 hours ago, DevonianDigger said: Where are you guys getting all of these!? I keep snagging mine at auction when I can, but there's no diversity in what's offered. 7 hours ago, Wrangellian said: I had that same question... The usual site doesn't have this much variety available (unless maybe you're on it constantly, with a hundred different saved searches going, and you're willing to shell out for them at closing time!). Like collecting fossils in the field, when you find a honey hole you're not going to be quick to divulge it to others - better to buy them and retail them on the auction site for a profit and keep the best one of each for your own collection! I mean, I'm in China, so... We're going to have to hear from Marc himself! 1 Link to comment Share on other sites More sharing options...
connorp Posted June 7, 2019 Share Posted June 7, 2019 7 hours ago, Wrangellian said: OK... I don't have very many and probably none that haven't already been shown (in better examples).. I won't include the few trilobite relatives I have from Chengjiang (Naraois, Misszhouia). I may not have all the info correct ..so corrections or additional info would be appreciated! Arthricocephalus sp. M. Cambrian (what stage?) (what formation?) (what town?) Guizhou, China Changaspis elongata M. Camb. Same formation/location as above Maotunia sp. + brachiopods Mid Cambrian (what stage?) Zhangxia Fm Linyi, Shandong, China Amphoton deois Same formation/location as above (I think I was to receive another one of these but they sent me some Pliocene crabs instead.) More coming... please hold off till I'm done! The first two are possibly from the hotang Fm. Link to comment Share on other sites More sharing options...
Wrangellian Posted June 8, 2019 Share Posted June 8, 2019 Thanks, I'll note that on the labels. Link to comment Share on other sites More sharing options...
Wrangellian Posted June 8, 2019 Share Posted June 8, 2019 18 hours ago, Sinopaleus said: Great fossils! That's a great Ductina specimen Thanks! It looks like the front end has split apart some? But pretty good. There was a choice of them so I chose what I thought were the best two. Link to comment Share on other sites More sharing options...
MarcusFossils Posted June 8, 2019 Share Posted June 8, 2019 19 hours ago, connorp said: The first two are possibly from the hotang Fm. My guess would have been that they're both from the Early Cambrian Balang Formation, but you may be right. I've never heard of the Hotang Formation Website: https://www.instagram.com/paleo_archives/ --------------------------------------------------------------------------- “It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.” ― Edgar Allan Poe Link to comment Share on other sites More sharing options...
connorp Posted June 8, 2019 Share Posted June 8, 2019 4 hours ago, MarcusFossils said: My guess would have been that they're both from the Early Cambrian Balang Formation, but you may be right. I've never heard of the Hotang Formation That’s just what I found by looking at similar specimens for sale on the web. But you may be right, I have not been able to find any references to the Hotang formation in literature. It may be an old name for a formation that has since been renamed. However, a look at FossilWorks for both species shows that they are both present at a wide range of localities. So I’m not sure I’d definitively write down a formation @Wrangellian. However, it looks like all specimens are listed as coming from Cambrian Series 2. I think that’s the most you can be certain about. I’ve found that a lot of Chinese sellers have more detailed information on the localities specimens were found at, you just need to explicitly ask them because it’s rarely in the actual listing. 1 Link to comment Share on other sites More sharing options...
piranha Posted June 8, 2019 Share Posted June 8, 2019 Arthricocepahalus and Changaspis occur above the Hotang in the Dachenling Formation: Lu, Y., Lin, H. 1989 The Cambrian Trilobites of Western Zhejiang. Palaeontologia Sinica, New Series B, Whole Number, 178(25):1-287 1 Link to comment Share on other sites More sharing options...
MarcusFossils Posted June 8, 2019 Share Posted June 8, 2019 On 2019-06-07 at 7:46 AM, Sinopaleus said: I mean, I'm in China, so... We're going to have to hear from Marc himself! It's just a matter of knowing the right people Website: https://www.instagram.com/paleo_archives/ --------------------------------------------------------------------------- “It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.” ― Edgar Allan Poe Link to comment Share on other sites More sharing options...
Wrangellian Posted June 9, 2019 Share Posted June 9, 2019 7 hours ago, piranha said: Arthricocepahalus and Changaspis occur above the Hotang in the Dachenling Formation: Lu, Y., Lin, H. 1989 The Cambrian Trilobites of Western Zhejiang. Palaeontologia Sinica, New Series B, Whole Number, 178(25):1-287 Does this mean Changaspis and Arthricocephalus are not found in the Hotang Fm? Link to comment Share on other sites More sharing options...
piranha Posted June 9, 2019 Share Posted June 9, 2019 Correct, they are found in numerous formations in China, but evidently not in the Hotang. 1 Link to comment Share on other sites More sharing options...
Wrangellian Posted June 9, 2019 Share Posted June 9, 2019 18 hours ago, connorp said: That’s just what I found by looking at similar specimens for sale on the web. But you may be right, I have not been able to find any references to the Hotang formation in literature. It may be an old name for a formation that has since been renamed. However, a look at FossilWorks for both species shows that they are both present at a wide range of localities. So I’m not sure I’d definitively write down a formation @Wrangellian. However, it looks like all specimens are listed as coming from Cambrian Series 2. I think that’s the most you can be certain about. I’ve found that a lot of Chinese sellers have more detailed information on the localities specimens were found at, you just need to explicitly ask them because it’s rarely in the actual listing. 6 hours ago, piranha said: Correct, they are found in numerous formations in China, but evidently not in the Hotang. I had a look at 'Changaspis elongata' on FossilWorks, and it says "Distribution: found only at Wuliu-Zengjiayan section, upper Tsinghsutung Formation " (Guizhou, I gather)... Is this old information, and it has now been found at more locations? Also note the different formation name. Or maybe my specimens are not elongata... Link to comment Share on other sites More sharing options...
piranha Posted June 9, 2019 Share Posted June 9, 2019 Paleobiology Database is very incomplete with regard to trilobites. According to the literature there are multiple localities for Changaspis elongata that are 'Balang' equivalent. The Balang fauna is typically found in Guizhou Province and another recent discovery (Liu & Lei 2013) at Paiwu in northwestern Hunan Province. Overall the genus Changaspis is widespread across many localities in southern China. published species: Changaspis elongata Changaspis longispina Changaspis micropyge Changaspis nangaoensis Changaspis placenta Changaspis plana Changaspis taihuensis Changaspis transversa chart from: Zhou, Z.Y., Zhen, Y.Y. 2009 Trilobite Record of China. Science Press, Beijing, 401 pp. 4 Link to comment Share on other sites More sharing options...
Sinopaleus Posted June 11, 2019 Author Share Posted June 11, 2019 Duyunaspis duyunensis (Meraspid, Juvenile, Stage 7) Middle Cambrian Balang Formation, Duyun, China Nileus sp Middle Ordovician Dawan Formation, Huangping, Guizhou, China Oryctocephalus indicus Middle Cambrian Kaili, Guizhou, China Ductina vietnamica Middle Devonian Nandan, Guangxi, China 2 Link to comment Share on other sites More sharing options...
piranha Posted June 12, 2019 Share Posted June 12, 2019 On 6/6/2019 at 11:13 PM, Wrangellian said: Coronocephalus gaoluoensis Silurian - Wenlockian? (what formation?) Mtns of western Hunan, China Coronocephalus gaoluoensis Silurian - Llandovery (Telychian) - Xiushan Formation Wanmin, Yongshun County, Western Hunan Province Chen, G., Han, N., Luo, R. 2012 Restudy of Coronocephalus gaoluoensis WU, 1979. Acta Palaeontologica Sinica, 50(3):284-303 On 6/6/2019 at 11:13 PM, Wrangellian said: Ductina vietnamica + styliolinids M. Dev. - Eifelian Nandan Fm (what town?), Hunan, China Illaenula vietnamica Lower Devonian (Emsian) - Tangding Formation Luofu District, Nandan County, Guangxi Province Chlupac 1977 established the subgenus Illaenula but there are published papers in China that have continued to classify it as Ductina. Han & Chen 2007 cited Chlupac 1977 and discussed the species concept of Ductina but did not use the name Illaenula. As the overall consensus of literature follows Chlupac 1977, including Jell & Adrain 2003, Illaenula is the preferred classification. Han, N., Chen, G.Y. 2007 Moulting variability in the Middle Devonian trilobite Ductina from Nandan, Guangxi, China. Acta Palaeontologica Sinica, 46(2):167-182 Chlupáč, I. 1977 The Phacopid trilobites of the Silurian and Devonian of Czechoslovakia. Rozpravy Ústředního Ústavu Geologického, 43:1-172 3 Link to comment Share on other sites More sharing options...
Wrangellian Posted June 12, 2019 Share Posted June 12, 2019 Thanks again, Scott. It would have taken me hours of sleuthing to find that info, if at all. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted June 12, 2019 Share Posted June 12, 2019 I'm going to have to stop reading this thread. I am thinking jealous thoughts. Which is not good as I have many lovely specimens. But not from China. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Jackson g Posted June 26, 2019 Share Posted June 26, 2019 My only Chinese trilobite, Redlichia Mai, Cambrian, Wulongqing Formation, China. Thanks to @MarcusFossils for the great first Asian trilo piece in my collection! 3 Link to comment Share on other sites More sharing options...
connorp Posted June 26, 2019 Share Posted June 26, 2019 On 6/26/2019 at 6:57 PM, Jackson g said: My only Chinese trilobite, Redlichia Mai, Cambrian, Wulongqing Formation, China. Thanks to @MarcusFossils for the great first Asian trilo piece in my collection! Great axial spine on that guy! You don’t them preserved too often, or at least not in my price range Link to comment Share on other sites More sharing options...
Huntonia Posted July 27, 2019 Share Posted July 27, 2019 This Redlichia mansuyi just came in the mail today. Link to comment Share on other sites More sharing options...
Huntonia Posted July 27, 2019 Share Posted July 27, 2019 Up close of some of the spines. 1 Link to comment Share on other sites More sharing options...
Wrangellian Posted July 27, 2019 Share Posted July 27, 2019 On 6/26/2019 at 4:26 PM, connorp said: , or at least not in my price range There's the rub... 1 Link to comment Share on other sites More sharing options...
JORGEP Posted January 24, 2021 Share Posted January 24, 2021 On 31/05/2019 at 7:18 PM, MarcusFossils said: An undetermined trilobite, from the Shihtien Formation (Middle Ordovician, near Baoshan, Yunnan, China) This trilobite , look like the Dindymene Link to comment Share on other sites More sharing options...
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