pleecan Posted January 28, 2012 Share Posted January 28, 2012 (edited) Lophophorates non polychaetes on Eusphenopteris obtusiloba. Found by Andrzej Gorski. Poland. Upper Silesia, Czarwionka City, Carboniferous, Westphalian 2011. Edited January 29, 2012 by pleecan Link to comment Share on other sites More sharing options...
Missourian Posted January 28, 2012 Share Posted January 28, 2012 Very nice. I've seen those little guys before, but not with such detail. Context is critical. Link to comment Share on other sites More sharing options...
pleecan Posted January 28, 2012 Author Share Posted January 28, 2012 Very nice. I've seen those little guys before, but not with such detail. Thanks! Link to comment Share on other sites More sharing options...
Malcolmt Posted January 28, 2012 Share Posted January 28, 2012 You my friend are really into your worms these days!!!!!!!! Link to comment Share on other sites More sharing options...
pleecan Posted January 28, 2012 Author Share Posted January 28, 2012 You my friend are really into your worms these days!!!!!!!! I like looking at the odd ball type of fossils Link to comment Share on other sites More sharing options...
pleecan Posted January 28, 2012 Author Share Posted January 28, 2012 Link to comment Share on other sites More sharing options...
Ludwigia Posted January 28, 2012 Share Posted January 28, 2012 How the worm turns! Very nice views! Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
pleecan Posted January 28, 2012 Author Share Posted January 28, 2012 Thanks Roger! Link to comment Share on other sites More sharing options...
pleecan Posted January 29, 2012 Author Share Posted January 29, 2012 Dr Jakob Vinther commented "You should know that this is most likely not a spirorbid. Its most likely not even a polychaete. Tubeworms did not originate until later presumably, and studies have shown that these "spirorbids" have a shell microstructure that resemble more lophophorates, such as brachiopods funny enough. Hederelloids are part of the same story and if you are friends with Mark A. Wilson he might be able to give you more insights to these little enigmatic marvels." and concurred by DR of ROM. Link to comment Share on other sites More sharing options...
pleecan Posted January 29, 2012 Author Share Posted January 29, 2012 Further more... got another comment from Jakob: " Yeah. its a new development within the last 5 years. I saw a talk by Mark in 2006 about the Hederelloids and remebered that this also were relevant for the spirorbids, but now that I look in Google Scholar I see that the paper was published by Taylor and Vinn in 2006: Convergent morphology in small spiral worm tubes ('Spirorbis') and its palaeoenvironmental implications. J. geol. Soc." Link to comment Share on other sites More sharing options...
AgrilusHunter Posted January 29, 2012 Share Posted January 29, 2012 Hi Pleecan, I just read a very nice manuscript on this exact topic ... here's a link to the abstract, if you want the full article just send me a PM http://jgs.lyellcollection.org/content/163/2/225.short ... afterwich I had to relabel all of the 'spirorbis' in the collection, fortunately we only have around twenty nodules with these so far. The preservation on your specimen is spectacular! Congrats on a great find. "They ... savoured the strange warm glow of being much more ignorant than ordinary people, who were only ignorant of ordinary things." -- Terry Pratchett Link to comment Share on other sites More sharing options...
pleecan Posted January 29, 2012 Author Share Posted January 29, 2012 Hi Pleecan, I just read a very nice manuscript on this exact topic ... here's a link to the abstract, if you want the full article just send me a PM http://jgs.lyellcoll...163/2/225.short ... afterwich I had to relabel all of the 'spirorbis' in the collection, fortunately we only have around twenty nodules with these so far. The preservation on your specimen is spectacular! Congrats on a great find. Thanks ! I just sent you a pm Link to comment Share on other sites More sharing options...
AgrilusHunter Posted January 29, 2012 Share Posted January 29, 2012 Ha ... 'Lophophorates Non Polychaetes On Eusphenopteris Obtusiloba' ... awesome "They ... savoured the strange warm glow of being much more ignorant than ordinary people, who were only ignorant of ordinary things." -- Terry Pratchett Link to comment Share on other sites More sharing options...
piranha Posted January 29, 2012 Share Posted January 29, 2012 Thanks for another interesting topic of discussion and follow-up ID on this fossil... Congrats Peter! Link to comment Share on other sites More sharing options...
pleecan Posted January 29, 2012 Author Share Posted January 29, 2012 Thanks for another interesting topic of discussion and follow-up ID on this fossil... Congrats Peter! Thanks Scott! It is quite a convoluted discussion ... Dr. Joe Botting responded " These ones are normally called spiroboids instead of spirorbids nowadays, and thr group as a whole are microconchids. It appears that the tubes that look just like serpulids stuck to our Ordovician nautiloids fall into the same category... and the group also probably includes the mysterious tentaculitids. The group actually carries on into the Jurassic, I believe, but are then replaced by the modern groups. It's all very confusing. Here are a couple of papers you might be interested in, available open access: http://www.eap.ee/public/Estonian_Journa....9-4-286-296.pdf http://www.app.pan.pl/archive/published/app39/app39-001.pdf Enjoy. " Link to comment Share on other sites More sharing options...
pleecan Posted January 29, 2012 Author Share Posted January 29, 2012 Dr Mark A Wilson commented " Very interesting specimen. It does appear to be some sort of microconchid, although with that distinctive ornamentation it is unlike any I've yet seen. " Link to comment Share on other sites More sharing options...
Wrangellian Posted January 30, 2012 Share Posted January 30, 2012 You find some of the oddest things, Peter.. keep them coming, I like them too! Link to comment Share on other sites More sharing options...
pleecan Posted January 30, 2012 Author Share Posted January 30, 2012 Thanks Eric! Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now