pleecan Posted December 28, 2010 Author Share Posted December 28, 2010 Thanks for posting Eric... fossil specimens looks great! Peter Link to comment Share on other sites More sharing options...
Wrangellian Posted December 30, 2010 Share Posted December 30, 2010 Thanks for posting Eric... fossil specimens looks great! Peter Thanks, they're not bad for the money I guess.. Here's a closeup on the Kunmingella: I see you've started more threads on the same topic.. will have to go look at them now! Link to comment Share on other sites More sharing options...
pleecan Posted December 30, 2010 Author Share Posted December 30, 2010 Thanks, they're not bad for the money I guess.. Here's a closeup on the Kunmingella: I see you've started more threads on the same topic.. will have to go look at them now! There are some nice details in the photo.... Looks like you were one the other bidders for the same fossil. Link to comment Share on other sites More sharing options...
Wrangellian Posted December 31, 2010 Share Posted December 31, 2010 (edited) There are some nice details in the photo.... Looks like you were one the other bidders for the same fossil. You were bidding on the same one? I dont think I paid much for this one.. sometimes there are no other bidders and you get them for $.99 but I dont remember exactly for this one... I know that guy sells lots of the same type. I wonder what all that orange hash is between the carapaces... are they appendages/etc from the same critter? BTW do you or anyone else reading this know the species name of the Heliomedusa and the Isoxys? (I gather the Kunmingella is K. douvillei) The seller didn't have them in the listings. Edited December 31, 2010 by Wrangellian Link to comment Share on other sites More sharing options...
piranha Posted December 31, 2010 Share Posted December 31, 2010 BTW do you or anyone else reading this know the species name of the Heliomedusa and the Isoxys? (I gather the Kunmingella is K. douvillei) The seller didn't have them in the listings. Hi Eric, I have the Chengjiang Fauna bulletin from 1997 by Chen and Zhou. I'm sorry to report that it's looking a bit dated right now. I've discovered quickly that there's been a fair amount of addition, revision and shuffling among the species. It will take some serious homework to differentiate which species of Isoxys or Kunmingella you have. For instance, Kunmingella maotianshanensis by my reference is the valid species. Curiously it's absent from this list , but the good news is you have four others to choose from. You caught a break on Heliomedusa as there's only one acknowledged species, H.orienta. You can also try Global Names Index. It will allow you to search any genus or species regardless of its presumed precedence or validity. Stumbling around with the Chengjiang Biota leaves me pondering one question: What is the most recent and definitive scholarship on the subject? Link to comment Share on other sites More sharing options...
pleecan Posted December 31, 2010 Author Share Posted December 31, 2010 One of the Best reference books for Chengjiang is ... Not sure about the orange hash.... there are appendages on some of the crttiers carapace.... Isoxys auritus (Jiang 1982) both spines equal length Isoxys paradoxus (Hou 1987) spines one is extremely longer than the other Heliomedusa orienta (Sun & Hou 1987) Link to comment Share on other sites More sharing options...
Wrangellian Posted January 1, 2011 Share Posted January 1, 2011 Thanks guys.. I think my Kunmingella looks the same as Peter's so I'll call it K. douvillei for now at least. For the Isoxys, I don't think mine has spines so that's still up in the air. I'll have to get that book if I can find it and afford it. Link to comment Share on other sites More sharing options...
steelhead9 Posted January 28, 2011 Share Posted January 28, 2011 Here are a couple of photos of a Chengjiang fauna I just finished prepping that you may be interested in. Still Life Fossils Link to comment Share on other sites More sharing options...
steelhead9 Posted January 28, 2011 Share Posted January 28, 2011 One more! Still Life Fossils Link to comment Share on other sites More sharing options...
pleecan Posted January 28, 2011 Author Share Posted January 28, 2011 Thanks steelhead9 for posting those neat images! PL Link to comment Share on other sites More sharing options...
Wrangellian Posted February 22, 2013 Share Posted February 22, 2013 Well this topic skipped 2012 but here is my latest 'Chengjiang' acquisition (info says Guanshan Fauna - material looks identical) - labeled as Tuzoia sinensis. I would have included the reconstruction that was given but it really didn't look close enough to this. visible carapace ~5cm long Guanshan Fauna, nr Chengjiang L. Cambrian Lower part of Wulongqing Fm, Gangtoucun Village, Kunming City, Yunnan, China Link to comment Share on other sites More sharing options...
pleecan Posted February 22, 2013 Author Share Posted February 22, 2013 Very nice Eric! PL Link to comment Share on other sites More sharing options...
Wrangellian Posted February 22, 2013 Share Posted February 22, 2013 Thanks Peter! My Chengjiang collection is growing... slowly. Link to comment Share on other sites More sharing options...
pleecan Posted February 22, 2013 Author Share Posted February 22, 2013 Here Tuzoia sinensis imaged with a Foveon camera Sigma SD10 with recent custom fabricated adapter (that is not on the market yet) to interface Konica Hexanon 40mm F1.8 at F11. Link to comment Share on other sites More sharing options...
pleecan Posted February 22, 2013 Author Share Posted February 22, 2013 Bivalve Arthropods: Sigma SD10, Konica Hexanon F1.8/ 40mm. Link to comment Share on other sites More sharing options...
Wrangellian Posted February 22, 2013 Share Posted February 22, 2013 Nice ones.. Kunmingella - I think I posted earlier in this thread a pic of one similar but with the individuals more spaced out than yours are. What are the dimensions on your individuals? Mine are small, about 3mm max. Link to comment Share on other sites More sharing options...
pleecan Posted February 22, 2013 Author Share Posted February 22, 2013 (edited) Kunmigella is also roughly 2-3mm as well. Edited February 22, 2013 by pleecan Link to comment Share on other sites More sharing options...
pleecan Posted February 22, 2013 Author Share Posted February 22, 2013 Very nice speciment Russ! PL Link to comment Share on other sites More sharing options...
Wrangellian Posted February 23, 2013 Share Posted February 23, 2013 That's my intent too, get it while you can, and because you can't get Burgess. I have not seen any trilo antennae yet. Yours are good but most of the stuff I see has bad prep job, looks like it was done sloppily with a scalpel and sometimes the fossil itself is gouged or pecked. I tried asking the seller if he would sell some unprepped pieces but apparently the answer is no. He won't get a proper prep setup to do the job right but won't easily let go of the unprepped stuff either. Link to comment Share on other sites More sharing options...
RCFossils Posted February 23, 2013 Share Posted February 23, 2013 Here is one of my favorite arthropods from the Chengjiang biota. It is aa beautiful example of a rare Rectifacies abnormalis. Link to comment Share on other sites More sharing options...
Down under fossil hunter Posted February 23, 2013 Share Posted February 23, 2013 Very nice, the preservation is excellent. Link to comment Share on other sites More sharing options...
Wrangellian Posted February 23, 2013 Share Posted February 23, 2013 Now they're coming out of the woodwork... Nice one! How did you get ahold of one like that?? Link to comment Share on other sites More sharing options...
pleecan Posted February 24, 2013 Author Share Posted February 24, 2013 (edited) Here is one of my favorite arthropods from the Chengjiang biota. It is aa beautiful example of a rare Rectifacies abnormalis. Nice specimen RC!PS This site with the new upgrades is totally unstable with Google Chrome browser... I edited and the result is a blank. So I had to start MS IE to re-edit this doc for the 3rd time. I will not use Google Chrome on this site ... as it is not stable. Edited February 24, 2013 by pleecan Link to comment Share on other sites More sharing options...
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