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Post by pleecan (Peter Lee) on Jan 27, 2012 20:01:19 GMT -5
Lophophorates Non Polychaetes On Eusphenopteris Obtusiloba on Eusphenopteris obtusiloba. Found by Andrzej Gorski. Poland. Upper Silesia, Czarwionka City, Carboniferous, Westphalian 2011.  |
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Post by pleecan (Peter Lee) on Jan 28, 2012 17:55:56 GMT -5
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Post by pleecan (Peter Lee) on Jan 28, 2012 20:42:00 GMT -5
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 and furthermore " 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."
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Post by Joe Botting on Jan 29, 2012 7:43:53 GMT -5
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Post by pleecan (Peter Lee) on Jan 29, 2012 15:09:02 GMT -5
Super! Thanks very much Joe for the references! This is very convoluted ... my poor head is spinning a bit but the papers will help  |
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Post by pleecan (Peter Lee) on Jan 29, 2012 15:19:00 GMT -5
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. "
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